JPH10129A - Rocking chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a motion similar to pendulum motion by connecting the rocking elements of rocking generating devices provided on the upper ends of both lateral leg parts to a seat part, and moving the seat part from the horizontal direction to the forward upper direction. SOLUTION: A rocking element 2 is formed of at least, two rotating bodies 3 fixed by a rotating body fixture 4 and a connecting plate 5 with a seat part fixed to the rotating body fixture 4. A rocking generating device 1 has the rocking element 2 integrated into a rocking element receiving base 6 having a rotating body guide elliptic hole 12. This device is set on the upper ends of both lateral leg parts 8, and the respective side surface parts of each rocking element 2 and the seat part 9 are connected by the connecting plate 5 with the seat part. The front end parts of armrest parts 10 are held by both hands, and pulled to this side so if the oars of a boat are pulled, whereby the seat part 9 situated in substantially horizontal state is moved in forward upper direction, and laid in backward tilted state. When the pulling force of both the hands pulled to this side is loosened, the seat part 9 moved in the forward upper direction is returned substantially to the horizontal state. This operation is repeated with good timing, whereby the seat 9 can continue a rhythmical rocking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rocking chair capable of obtaining a stable rocking motion.

[0002]

BACKGROUND OF THE INVENTION One of the typical rocking chairs according to the conventional method
First, a curved sled-shaped leg is provided on the base (bottom) of the chair in contact with the floor so that the seat can swing. One is provided with a swinging spring between the seat or the armrest and the seat so that the seat can swing.

[0003]

In one of the conventional typical rocking chairs, since the base of the chair causing the rocking motion is in contact with the floor, the floor surface or the floor covering is removed. There are problems such as scratching or, depending on the condition of the floor surface, hindering a stable swinging motion. In addition, the movement of the head of the user becomes larger than the movement of the waist sitting on the chair, and particularly when the user swings greatly backward, there is a risk of falling backward and causing fear. Further, in a swing chair in which a swing spring is provided between a seat portion or an armrest portion and a seat portion of a chair so that the swing can be swung, the resilience of the selected spring is constant, so that it is used. Depending on the weight of the person's weight, the swinging can hardly be performed or, on the contrary, the seat portion jumps up strongly in a short time, so that a comfortable swing cannot be obtained. In addition, these rocking chairs, when changing the rocking direction, that is, when moving from a forward rocking to a backward rocking, or vice versa, may give a change of the momentum to the user as a large impact. is there.

The present invention has been made in view of the above circumstances, and has as its object to provide a different kind of exercise from the conventional rocking chair, that is, a motion similar to a pendulum motion, and to provide a comfortable rocking chair. is there.

[0005]

In view of this situation, the present inventor has conducted intensive studies, and as a result, has found that a swing is generated when a chair is stably placed on a floor and a seat is provided on an armrest. It has been found that a stable swinging motion can be imparted to the seat portion by swingably mounting the device, and the present invention has been completed. That is, in order to solve the above problem, a rocking chair according to a first aspect of the present invention is a rocker (2) and a rocker comprising at least two rotating bodies (3) and a rotating body fixing member (4). A rocking device (1) comprising a cradle (6) is provided at the upper ends of both left and right legs (8), and the rocker (2)
Has a structure connected to the seat (9).

A rocking chair according to a second aspect of the present invention is the rocking chair (9).
Moves from a substantially horizontal state to a front upper direction, and returns to a substantially horizontal state.

In the rocking chair according to a third aspect of the present invention, the rocker receiver (6) is provided with a rotary body guide slot (12) such that the frontmost portion is higher than the rearmost portion, and the rotary member is rotated. The body guide slot (12) has a radius of curvature of 20 to 80 cm.

A rocking chair according to a fourth aspect of the present invention is characterized in that the swing width of the rocker (2) is 20 to 40 cm.

The present inventor has already filed Japanese Patent Application No.
No. 28 filed an application for an invention capable of providing a comfortable rocking chair by employing a motion similar to a pendulum motion. In that invention, to provide a comfortable rocking motion,
Considering the rocking rhythm. From ergonomics research, it is said that about 2.2 seconds per cycle is a comfortable rhythm for humans. From the equation of the cycle of the simple pendulum, if the cycle is T, the length of the thread is 1 and the gravitational acceleration is g, then T = 2π (l / g) ^1/2 , so the cycle is around 2.2 seconds. For this reason, it was determined that the radius of curvature of the rocking surface of the rocker receiver (6) should preferably be 80 to 150 cm.

When a rocking chair is used for a long time, as described above, the radius of curvature of the rocking surface of the rocker pedestal (6) is set to 80-1.
A rocking chair of 50 cm reduces the burden on the waist and the like of the occupant and is comfortable, but it is necessary to provide a greater sway to those who want to enjoy the use or swing for a short time.

Therefore, as shown in the first invention, a swing generator (1) is provided at the upper end of the leg (8), and a seat for a person using a swing chair, such as "Yajirobei", is provided. Department (9)
The center of gravity is located below the position where the oscillation occurs.
As a result, the swing speed when the seat portion (9) largely swings back and forth is reduced, and the impact when the swing direction changes is reduced. Further, in order to eliminate the fear of falling when shaking greatly rearward, the swing width of the oscillator (2) is set to 20 to 40 cm as shown in the fourth invention.

Further, in order to provide a greater swing to a person who wants to enjoy short-time use or swing, as shown in the second invention, the seat (9) is moved from a substantially horizontal state to a front upper direction. Mainly on the movement, as shown in the third invention, the radius of curvature of the rocking surface of the rocker receiver (6) is set to 20 to 80 cm.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited thereto. (A) At least two rotators (3) are fixed by a rotator fixing device (4), and furthermore, an oscillator (2) in which a connecting plate (5) with a seat is fixed to the rotator fixing device (4). ). (B) The rocker (2) was assembled into a rocker cradle (6) having a rotary body guide slot (12) having a radius of curvature of 40 cm and a maximum rocking width of the rocker (2) of 25 cm. The structure of the swing generator (1) is used. (C) The swing generator (1) is installed at the upper ends of the left and right legs (8), and the side faces of each swing element (2) and seat (9) are defined as a seat. (5). (D) A foldable footrest (11) is provided at the lower front part of the seat (9).

The present invention has the above structure. After sitting on the seat (9), the user grasps the front end of the armrest (10) with both hands and pulls forward as if rowing a turret. (9) moves forward and upward and is in a state of being inclined backward. Next, if the pulling force of both hands pulled forward is relaxed, the seat (9) moved upward in the front direction returns to a substantially horizontal state. If this operation is repeated in a timely manner, the seat (9) can continue rhythmically swinging. Also, even if the center of gravity of the weight applied to the seat (9) is moved backward with some momentum without using both hands, the seat (9) moves forward and upward. Therefore, even if the hand is not used, the seat (9) can continue rhythmically swinging by repeating the movement of the center of gravity in a timely manner.

[0015]

The uninvented rocking chair has the following effects unlike the conventional rocking chair. (A) Since it is not necessary to swing with a foot, even a person with weak feet can use it. (B) Even when the seat is tilted backward, the center of gravity of the weight does not come out of the chair base. Therefore, there is no danger of falling backward and it is safe. (C) It is healthy for the user to continue the rhythmical swing of the chair while using his hands and shifting the center of gravity of the weight. (D) The seat portion of the conventional rocking chair is a rocking movement in which the seat moves from the horizontal state to the lower rear and returns to the horizontal state. In the rocking chair of the present invention, the seat moves from the horizontal state to the front upper direction and moves to the horizontal state. Because it is a swing to return to
There is a feeling of use different from the conventional one. (E) Since the structure is relatively simple, it can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a swing generator according to the present invention.

FIG. 2 is a schematic cross-sectional view taken along the line AB of the swing generator of the present invention.

FIG. 3 is a schematic side view of a rocking chair according to the present invention.

FIG. 4 is a schematic front view of a rocking chair according to the present invention.

FIG. 5 is a schematic side view showing a state where the seat portion of the rocking chair according to the present invention is tilted rearward.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oscillation generator 2 Oscillator 3 Rotating body 4 Rotating body fixing tool 5 Connecting plate with seat 6 Oscillator pedestal 7 Base 8 Leg 9 Seat 10 Armrest 11 Footrest 12 Rotating body guide For long hole

Claims (4)

[Claims] An oscillator (1) comprising an oscillator (2) comprising at least two rotators (3), a rotator fixture (4) and an oscillator receiver (6) is provided. A rocking chair provided at the upper ends of both left and right legs (8), and having a structure in which the rocker (2) is connected to a seat (9). 2. A rocking chair according to claim 1, wherein the seat moves from a substantially horizontal state to a front upper direction and returns to a substantially horizontal state. 3. An oscillator receiving slot (6) is provided with a rotary body guide slot (12) such that a frontmost portion is higher than a rearmost portion, and a rotary body guide slot (12). The rocking chair according to claim 1 or 2, wherein the radius of curvature of (12) is 20 to 80 cm. 4. The swing width of the oscillator (2) is 20 to 40 c.
4. The rocking chair according to claim 1, 2 or 3, wherein m is set to m.