JP2001178575A - Reclining chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain the distance between a head part receiver at the upper end part of a backrest part and, for example, the wall of a room in which a reclining chair is installed when the backrest part is raised and reclined. SOLUTION: In the reclining chair, the backrest part 1 is freely rotatably pivoted and connected to a seat part 2. The seat part 2 is supported at a base body frame 4 slidably forward and backward, the backrest part 1 is inclined accompanying the forward movement of the seat part 2, and the backrest part 1 is freely raised with the backward movement of the seat part 2. The reclining chair is provided with a means for approximately matching the amount X of forward movement of the seat part 2 with the amount Y of backward movement in the head part receiver 3 at the upper end part of the backrest part 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reclining chair and, more particularly, to a headrest at the upper end of a backrest when a backrest is standing and reclining. The present invention relates to a technique for preventing a distance from a wall from changing and preventing a mechanism for the same from impairing safety.

[0002]

2. Description of the Related Art Conventionally, in a reclining chair in which a backrest portion is made rotatable, a head support at an upper end portion of the backrest portion greatly approaches a wall of a room during reclining.
Also, they are far apart when standing up.

In order to solve such a problem, Japanese Unexamined Patent Publication No. Hei 3-244449 shown in FIG. 7 discloses a seat frame 2 which can swing back and forth through a parallel quadruple link mechanism 5a on a base frame 4a. The backrest 1 is pivotally connected to the seat 2, the electric unit 6a is interposed between the parallel quadruple link mechanism 5a and the base frame 4a, and the seat 2 is expanded and contracted by the electric unit 6a. The backrest portion 1 is swung and moved back and forth, and the backrest portion 1 is rotated and moved back and forth as the seat portion 2 moves back and forth.

[0004]

In the technique shown in FIG. 7, the seat 2 is moved back and forth by swinging (not parallel movement) via the parallel quadruple link mechanism 5a. It is difficult to make the amount of movement of the seat portion 2 and the amount of back and forth movement of the backrest portion 1 difficult to match, and a dead space is generated between the reclining chair and the indoor wall or the like.

In addition, there are many movable members such as the parallel quadruple link mechanism 5a and the electric unit 6a below the seat 2, and, for example, a child or the like enters under the seat 2, When it enters, the movable member may hit and cause a problem in safety.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and when the backrest is upright and reclining, the headrest at the upper end of the backrest and the wall of the room are formed. It is an object of the present invention to provide a reclining chair capable of preventing the distance of the recliner from changing and preventing the safety of the reclining chair from being impaired by a mechanism for the reclining chair.

[0007]

According to the first aspect of the present invention, there is provided a reclining chair in which a backrest portion 1 is pivotally connected to a seat portion 2 so as to be rotatable. The backrest unit 1 is supported by the base frame 4 and the backrest unit 1 is tilted down as the seat unit 2 moves forward, and the backrest unit 1 is configured to be able to stand upright as the seat unit 2 moves backward. Is provided with means for making the amount of forward movement X substantially equal to the amount of backward movement Y of the head receiver 3 at the upper end of the backrest 1. According to such a configuration, when the seat 2 slides forward with respect to the base frame 4, the forward movement amount X of the seat 2 and the backrest 1
The amount of backward movement Y of the head receiver 3 at the upper end of the headrest 3 substantially coincides with the amount of movement of the head receiver 3 backward when the standing backrest 1 falls down. The seat 2 is pulled forward as the seat 2 slides forward, so that, for example, the backrest 1 standing upright at the wall can be turned over without hitting the wall. As a result, As a result, the dead space generated between the reclining chair and the wall can be eliminated.

According to a second aspect of the present invention, the seat 2 and the backrest 1 slidably supported in the front-rear direction on the base frame 4 are pivotally connected by an external link 5. . According to such a configuration, the seat portion 2 is slidably supported by the base frame 4 to simplify the configuration for moving the seat portion 2 back and forth, and a space can be formed below the seat portion 2 to improve safety. Easy to increase.

According to a third aspect of the present invention, an electric reclining mechanism 6 for sliding the seat 2 with respect to the base frame 4 to recline the backrest 1 is provided substantially parallel to the seat 2. Is what you do. According to such a configuration, the electric reclining mechanism 6 includes the seat 2
And a space can be formed below the electric reclining mechanism 6 of the seat 2, and a movable member does not exist in the space below the seat 2, thereby improving safety. Can be.

According to a fourth aspect of the present invention, the height of the armrest 7 can be adjusted in synchronization with the reclining. According to such a configuration, the height of the armrest 7 can be adjusted in synchronization with the reclining, and the device is easy to use. By the way, it is preferable that the armrest 7 is connected to the backrest 1 by the connecting link 8.

According to a sixth aspect of the present invention, the caster wheels 9 are provided within a range of the front-rear length of the base frame 4. According to such a configuration, the caster wheels 9 are within the range of the front-rear length of the base frame 4, and the caster wheels 9 do not protrude from the base frame 4 in the length direction. Without hitting the caster wheels 9,
Since the caster wheel 9, that is, the fulcrum is set forward, the massage chair can be easily defeated.

[0012]

Embodiments of the present invention will be described below. 1A and 1B are side views showing the operation, FIG. 2 is a schematic side view showing an electric reclining mechanism, and FIG. 3 is a side view.

A slide shaft 10 is mounted on a base frame 4 made of a pipe material by a suitable holding means.
A slider 11 on the side of the backrest 1 is slidably engaged with the slide shaft 10 so that the backrest 1 can be moved back and forth on the base frame 4. As described above, the design for sliding the seat 2 back and forth with respect to the base frame 4 can be variously changed.

A motor 12 is fixed to the base frame 4 by appropriate means, a feed screw shaft 13 is rotatably held by a bearing on the seat 2 side, and an operation signal from an operation unit (not shown) is transmitted to a control unit. The motor 12 is driven and rotated by a control signal from the control unit to drive and rotate, for example, a worm shaft (not shown), and a worm wheel (not shown) meshing with the worm shaft is rotated to The feed screw shaft 13 meshing with the internal teeth of the wheel is fed and rotated so that the seat 2 can be driven and moved back and forth. As described above, the design for driving and moving the seat 2 forward and backward can be variously changed.

The backrest 1 is pivotally connected to the seat 2 by pins 14 so as to be rotatable. The backrest 1 and the base frame 4 are pivotally connected by an external link 5. The pivotal connection position of the external link 5 to the backrest 1 and the base frame 4 is determined by the amount of forward movement X of the seat 2 and the amount of backward movement Y of the upper end of the backrest 1 in the head receiver 3. Are set at positions where they substantially coincide with each other. As described above, the means for making the forward movement amount X of the seat portion 2 substantially equal to the rearward movement amount Y of the head support 3 at the upper end of the backrest portion 1 can be changed. By moving the seat portion 2 forward and backward by sliding drive, the backrest portion 1 pivotally connected to the seat portion 2 is rotated and reclined. The configuration for such driving is an electric reclining mechanism 6. Collectively. A treatment element may be incorporated in the backrest portion 1 to provide a massage function. In FIG. 1, reference symbol W denotes a protruding length from the reference position B when the backrest 1 is upright, and Z denotes a protruding length of the backrest 1 at that time.

According to such a configuration, when the seat 2 slides forward with respect to the base frame 4, the seat 2
To the forward movement X of the head and the head support 3 at the upper end of the backrest 1
Is substantially equal to the backward movement amount Y, and the backrest portion 1 moves forward of the seat portion 2 by an amount that the head receiver 3 moves backward when the standing backrest portion 1 falls down. It is pulled forward with the slide, so that, for example, the backrest 1 standing on the wall can be turned down without hitting the wall, and as a result, the reclining chair and the wall The dead space that has occurred can be eliminated.

In this case, as shown in FIGS. 2 and 3, the backrest portion 1 is pivotally connected to the seat portion 2 supported on the base frame 4 slidably in the front-rear direction by an external link 5. In addition to simplifying the structure for interlocking the seat portion 2 and the backrest portion 1, a space can be formed below the seat portion 2 to easily enhance safety.

In addition, since the electric reclining mechanism 6 for sliding the seat portion 2 with respect to the base frame 4 to recline the backrest portion 1 is provided substantially parallel to the seat portion 2, the electric reclining mechanism is provided. An empty space can be formed below the mechanism 6, and a movable member does not exist in the empty space below the seat 2, thereby improving safety.

FIG. 4 shows another embodiment. However, the basic configuration of the present embodiment is the same as that of the above-described embodiment, and the common parts are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the armrest 7 that pivotally connects the first armrest link 15 and the second armrest link 16 across the seat portion 2 and the backrest portion 1 is rotatably connected. As described above, the height of the armrest 7 can be adjusted in synchronism with the reclining, so that the height of the armrest 7 can be adjusted in synchronism with the reclining and is easy to use.

FIG. 5 shows still another embodiment, provided that
The basic configuration of this embodiment is the same as that of the above-described embodiment, and the common portions are denoted by the same reference numerals and description thereof will be omitted. In the present embodiment, the first armrest link 15 is formed as a main arch of the armrest 7 and is formed in a substantially arch shape, and the second armrest link 16 is pivotally connected to the backrest portion 1 as the short connection link 8. .

FIG. 6 shows still another embodiment, provided that
The basic configuration of this embodiment is the same as that of the above-described embodiment, and the common portions are denoted by the same reference numerals and description thereof will be omitted. In the present embodiment, since the caster wheels 9 are provided within the range of the front-rear length of the base frame 4,
Since the caster wheels 9 do not protrude from the base frame 4 in the length direction, the appearance is improved and the caster wheels 9 are not abutted during walking, and the caster wheels 9, that is, the fulcrums are forward, so that the massage is performed. The chair can be easily defeated.

[0022]

According to the first aspect of the present invention, there is provided a reclining chair in which a backrest portion is rotatably pivotally connected to a seat portion. The backrest is lowered with the movement of the seat forward, the backrest is configured to be able to stand upright as the seat moves backward, and the amount of movement of the seat forward and the upper end of the backrest. Means for substantially matching the amount of rearward movement of the head support with the backrest portion when the seat slides forward with respect to the base frame. The amount of rearward movement of the headrest at the upper end of the headrest substantially coincides with that of the headrest, and when the standing backrest part falls down, the backrest part moves forward of the seat by the amount moved backward. Will be pulled forward with the slide of When it than the backrest you are standing can be brought down times without having to hit the wall, as a result, there is the advantage that it is possible to eliminate the dead space that have occurred against a wall and a reclining chair.

According to the second aspect, the seat and the backrest, which are slidably supported in the front-rear direction on the base frame, are pivotally connected by an external link. The portion is slidably supported by the base frame to simplify the structure for moving the seat back and forth, and has the advantage that a space can be formed below the seat and security is easily enhanced.

According to a third aspect of the present invention, the electric reclining mechanism for reclining the backrest by sliding the seat with respect to the base frame is provided substantially parallel to the seat. In addition, the electric reclining mechanism is substantially parallel to the seat, so that a space can be formed below the electric reclining mechanism of the seat and that the movable member exists in the space below the seat. There is an advantage that the safety can be improved.

According to the fourth aspect, the height of the armrest can be adjusted in synchronization with the reclining. Therefore, in addition to the effect of the first aspect, the height of the armrest can be adjusted in synchronization with the reclining. Is easy to use.

According to the sixth aspect, the caster wheels are provided within the range of the front-rear length of the base frame. Therefore, in addition to the effect of the first aspect, the caster wheels are provided within the range of the front-rear length of the base frame. Therefore, the caster wheel does not protrude from the base frame in the length direction, the appearance is enhanced, and the caster wheel does not hit the wheel during walking.In addition, since the caster wheel, that is, the fulcrum is set forward, the massage chair can be used. It can be easily beaten.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, and (a) and (b) are side views showing an operation.

FIG. 2 is a schematic side view showing the electric reclining mechanism according to the first embodiment.

FIG. 3 is a side view of the same.

FIG. 4 is a side view illustrating the movement of the armrest.

FIG. 5 is a side view illustrating movement of an armrest according to another embodiment of the above.

FIG. 6 is a side view showing another embodiment of the above.

FIG. 7 is a schematic side view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Backrest part 2 Seat part 3 Head support 4 Base frame 5 Link 6 Electric reclining mechanism 7 Armrest 8 Connection link 9 Caster wheel

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masuyuki Hamano 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Makoto Fukuya 1048 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Works Ltd. (72) Inventor Hiroshi Matsumoto 1048 Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Works, Ltd. (72) Inventor Fumihiro Nishio 1048 Kadoma, Kazuma, Kadoma, Osaka Prefecture Inside Matsushita Electric Works, Ltd. 1048 Kadoma, Kamon, Fumonma-shi Matsushita Electric Works Co., Ltd. F-term (reference) 3B099 AA03 BA08 BA10 CB01 CB06 4C100 CA03

Claims (6)

[Claims] 1. A reclining chair in which a backrest is pivotally connected to a seat so as to be rotatable, wherein the seat is supported by a base frame so as to be slidable in the front-rear direction, and the seat moves forward. The backrest portion is tilted down, and the backrest portion is configured to be able to stand upright with the rearward movement of the seat portion, and the amount of forward movement of the seat portion and the rear portion of the headrest at the upper end portion of the backrest portion. A reclining chair comprising means for substantially matching the amount of movement to the reclining chair. 2. The reclining chair according to claim 1, wherein a seat portion and a backrest portion slidably supported in the front-rear direction on the base frame are pivotally connected by an external link. 3. The reclining mechanism according to claim 1, wherein the electric reclining mechanism for reclining the backrest by sliding the seat relative to the base frame is provided substantially parallel to the seat. Chair. 4. The reclining chair according to claim 1, wherein the height of the armrest is adjustable in synchronization with the reclining. 5. The reclining chair according to claim 4, wherein the armrest is connected to the backrest portion by a connecting link. 6. The reclining chair according to claim 1, wherein the caster wheels are provided within a range of front and rear lengths of the base frame.