JP2013066656A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair capable of changing posture between office work and rest with a simple configuration.
A chair includes a seat plate on which a user sits, and a backrest (4) that is disposed behind the seat plate and supports the user's back, and has two seat plates on the upper and lower sides. The working posture seat plate 1 and the lower resting posture seat plate 2 are connected via a caterpillar belt-like plate body 3 formed by connecting a plurality of belt-like plates, and can be folded into a U-shape. When the seat plate 1 is extended forward, the rest posture seat plate 2 appears, and the surface opposite to the seat surface of the work posture seat plate 1 serves as a footrest for the user.
[Selection] Figure 1

Description

  The present invention relates to a chair capable of changing its posture between work and rest.

  Conventionally, there are so many kinds of chairs, which are classified into various forms, uses, structures, and materials. However, stools without backrest, work chairs such as office chairs with backrest, sofas for rest and comfort. A chair or a functional chair such as a reclining seat in which the posture of the chair changes is frequently used in daily life.

  Among such chairs, various types of convenient chairs that can change the posture of a chair in a wide range and automatically have been proposed recently. For example, it has a posture change function that can be easily changed to a standard sitting posture, a resting posture to lie down, and a leaving assistance posture when standing up, and can also be changed to a nap posture for taking a nap A chair has been proposed (see, for example, Patent Document 1).

JP-A-6-245838

  In the above-described conventional chair, as a drive mechanism, a backrest frame provided on both right and left sides of the backrest, a pair of left and right connecting plates rotatably coupled to the backrest frame by a backrest pivot shaft, A large gear rotating shaft provided between the connecting plates, a large gear attached to the rotating shaft and having arcuate teeth, a guide rail attached to the large gear, and the connecting plate. In other words, it has a pinion with a forward / reverse rotation drive source that meshes with a large gear, and the chair itself has a problem of becoming heavy and long.

  This invention is made | formed in view of said problem, and makes it a subject to provide the chair which can change an attitude | position for work and rest with a simple structure.

  The first technical means taken in order to solve the above-described problem includes a seat plate on which a user is seated, and a backrest that is disposed behind the seat plate and supports the back of the user, There are two seat plates above and below, and the upper one seat plate and the other lower seat plate are connected via a caterpillar belt-like plate body formed by connecting a plurality of belt-like plates and U-shaped When the one seat plate is extended forward, the other seat plate appears, and the surface on the opposite side of the seat surface of the one seat plate is the footrest of the user. It is characterized by becoming.

  Further, the second technical means is characterized in that, in the first technical means, the other seat plate is inclined upward as the backrest side is located at the lowest position and goes forward. is there.

  A third technical means is that, in the first technical means or the second technical means, the backrest can change an inclination angle.

  According to the present invention, a seat plate on which a user sits and a backrest that is disposed behind the seat plate and supports the user's back are provided. The seat plate and the other lower seat plate are connected via a caterpillar belt-like plate body formed by connecting a plurality of belt-like plates and can be folded in a U-shape, and when one seat plate is extended forward, As another seating board appears, the surface opposite to the seating surface of one seating board is a footrest for the user, so it can be used for work and rest with a simple configuration. A chair capable of changing its posture can be provided.

  In addition, the other seat plate is characterized in that the backrest side is located at the lowest position and is inclined upward as it goes forward, so that the user's buttocks are located at the lowest position and the knee part is located above. Therefore, the user's lower body can be placed in an easy posture.

  Further, since the backrest is characterized in that the tilt angle can be changed, the user can adjust the backrest to a desired tilt angle.

It is a figure of the left view which shows 1st Embodiment of the chair which concerns on this invention. It is a figure which shows the mode of the attitude | position change of the chair of FIG. It is a figure of the left view which shows another embodiment of the chair which concerns on this invention.

(First embodiment)
Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a left side view showing an example of a chair capable of changing postures for work and rest according to the present invention. This state is an office posture. As shown in this figure, a chair according to the present invention includes a working posture seat plate 1 on which a user is seated in a working posture, a resting posture seat plate 2 on which a user is seated in a resting posture, and a working posture seat. A caterpillar belt-like plate body 3 formed by connecting a plurality of belt-like plates connecting the plate 1 and a resting posture seat plate 2, a backrest 4 provided behind the seat plate, and a lower portion of the resting posture seat plate 2 It is comprised from the leg 5 provided in this. Further, a pair of left and right armrests 6 are provided on both sides of the seat plate.

  The lower end of the backrest 4 is pivotably connected to the resting seat 2 so that the angle of the backrest 4 and the resting seat 2 can be adjusted by the lever 7 according to the preference of the user. It has become.

  The resting seat plate 2 is inclined upward as it goes forward, and is connected to the working posture seat plate 1 via a caterpillar belt-like plate body 3 bent in a U-shape.

  Stoppers 8 are fixed to both the left and right ends of the front end portion of the office posture seat plate 1 and are in contact with the seat support 9 provided on both sides of the backrest 4 to support the weight of the user. .

  The armrest 6 is connected to a link 10 extending upward from a fulcrum 5a provided on a leg 5b behind the backrest 4 and a fulcrum 10a so as to be rotatable, and contacts the armrest receivers 11 provided on both sides of the backrest 4. It touches. Therefore, the armrest 6 can be flipped upward with the fulcrum 10a as an axis.

  FIG. 2 shows how the chair configured as described above is changed in posture for rest. When the office posture seat plate 1 is lifted upward and rotated forward, the rest posture seat plate 2 under the office posture seat plate 1 appears, and the office posture seat plate 1 is a footrest (ottoman). To play the role. Further, by adjusting the angle of the backrest 4 by operating the lever 7, the user can change the backrest 4 to a desired angle, and the chair can be used as a resting posture.

  If the gas spring 12 that biases the backrest 4 to the working posture angle is provided, the user can easily get up after resting.

(Another embodiment)
FIG. 3 is a left side view showing another embodiment of the chair capable of changing the posture between office and rest according to the present invention. The leg 5 and the armrest 6 of the first embodiment are integrated and the gas spring 12 is abolished, and the other configuration is the same as that of the first embodiment. Omitted.

  The stopper 8 according to this embodiment is provided at the front end of the office posture seat plate 1 so as to protrude in the width direction of the seat plate, and is sandwiched at a position where the backrest 4 and the rear leg 5b intersect each other, thereby weighting the user. It has a structure to support.

  The method of changing the posture for rest is the same as in the first embodiment, and will not be described.

  By adopting the above configuration, the office posture seat plate 1 becomes a leg rest (ottoman) with a simple configuration, and a sufficient length for placing the leg can be secured. 1. Resting seat 2 and backrest 4 are integrated into a simple structure with no gaps in each part, and you want to take a short nap (rest) for a short time (20-30 minutes) in the office chair. You can easily change to a resting chair.

  In addition, the application range of the chair in which such a posture can be changed is not limited to an office chair, and can be applied to a car seat as well as a furniture chair.

1 Office posture seat (one seat)
2 Resting seats (other seats)
3 Caterpillar belt-like plate 4 Backrest 5 Leg 6 Armrest 7 Lever 8 Stopper 9 Seat support 10 Link 11 Armrest support

Claims (3)

A seat plate on which the user is seated;
A backrest disposed behind the seat plate and supporting the back of the user;
Two seat plates above and below,
One seat plate on the upper side and the other seat plate on the lower side are connected via a caterpillar belt-like plate body formed by connecting a plurality of belt-like plates and can be folded into a U-shape.
When the one seat plate is extended forward, the other seat plate appears, and a surface opposite to the seat surface of the one seat plate serves as a footrest for the user.   2. The chair according to claim 1, wherein the other seat plate is inclined upward as the backrest side is located at a lowermost position and goes forward.   The chair according to claim 1 or 2, wherein the backrest can change an inclination angle.

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