JPH11151130A - Reclining chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability of a reclining chair and to improve the design of the chair, by composing the char by an engaging part of an arm rest part and an engaging body pivotally combined with an outer shell body, equipping an engaging protrusion part to engage with a wave form engaging part on the upper end of an arm rest receiver part and protruding a protrusion part to be fit in a guide groove equipped on the inside face of the outer shell body. SOLUTION: When an engaging protrusion part of an arm rest receiver part 7 of this chair is connected by engagement with a wave form engaging part 66 of an engaging body 62, a back rest part 5 keeps a prescribed angle because the back rest part 5 is supported by an arm rest part 6, and the chair comes into a stable use condition. Further, when an operating part 68 is lightly pulled up, the engaging condition is released to enable the protrusion part to move within the range of the guide groove and the arm rest part 6 in the longitudinal direction. When the arm rest part 6 is moved rearward, the back rest part 5 is tilted into the reclining direction and, when moved forward, moved to the standing direction. Consequently, if pulling-up of the operating part 68 is released when the arm rest part is moved properly to make the back rest part 5 in a desired angle, the engaging body 62 engages the wave form engaging part 66 and the engaging protrusion part of the arm rest receiver part 7 by the dead weight to stabilize the back rest part 6 in a desired angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reclining chair capable of tilting a backrest at an appropriate angle.

[0002]

2. Description of the Related Art Various types of reclining chairs have been known, but the present invention is based on an armrest connected to a backrest provided with a seat on front and rear legs, a backrest provided to be able to fall down rearward. The present invention relates to a reclining structure in which a connection position between a portion and an armrest receiving portion connected to a seat portion or a leg portion is changed, and a backrest portion is set to a desired inclination angle.

[0003] Specifically, as shown in Japanese Utility Model Publication No. 61-40202, a waveform locking portion is provided on an armrest portion, and an armrest receiving portion which is an extension of a front leg is selectively provided on the waveform locking portion. It is designed to be locked.

[0004]

In the above-mentioned conventional reclining chair, the connecting position between the armrest portion and the armrest receiving portion is changed.
Lift the entire armrest to release the lock, change the inclination angle of the backrest, and lock again.It is necessary to lift the entire armrest, and it is excellent in operability when adjusting reclining. It can not be said. In addition, since the armrest itself is lifted, the locking portion is visually recognized from the exterior, and the design is not excellent. Therefore, the present invention improves the connection structure between the armrest portion and the armrest receiving portion to solve the above-mentioned problem.

[0005]

SUMMARY OF THE INVENTION A reclining chair according to the present invention is provided with a seat on front and rear legs, a backrest is provided so as to be able to fall down rearward, and an armrest and a seat are connected to the backrest. Alternatively, in the reclining structure in which the connecting position with the armrest receiving portion connected to the leg portion is changed to make the backrest portion a desired inclination angle, the armrest portion has a U-shaped cross section with a lower opening, and the rear portion is backrested. An outer shell body pivotally connected to the part and a corrugated locking part formed on the bottom surface and positioned in the outer shell body, the front part of the outer shell can be engaged and disengaged with the locking part of the armrest receiving part. A locking projection pivotally connected to the body is provided. At the upper end of the armrest receiving portion, a locking projection is provided for engaging with the waveform locking portion, and is fitted into a guide groove provided on the inner surface of the outer shell. It is characterized in that the protruding portion is provided sideways.

Accordingly, when the engaging body in the outer shell is lightly lifted to disengage the engagement between the corrugated engaging portion and the engaging projection of the armrest receiving portion and the angle of the backrest portion is changed, the backrest portion follows the guide groove. When the armrest receiving part moves and releases the locking body at the desired angle of the backrest part, the waveform locking part engages with the locking projection of the armrest receiving part, and the backrest part is stabilized at the desired angle. I do. The above operation can be performed with the elbow placed on the outer shell.

[0007]

Next, an embodiment of the present invention will be described. The reclining chair shown in the embodiment is an example of a foldable pipe chair, and includes a front leg 1 and a rear leg 2.
, Connecting portion 3, seat portion 4, backrest portion 5, armrest portion 6
And an armrest receiving portion 7.

The front leg 1 and the rear leg 2 are formed of a U-shaped pipe having an upper opening, and a reinforcing pipe 1 is provided at an intermediate portion.
1 and are inclined to the center with respect to each other.
In order to fold, at least one of the front and rear legs 1 and 2 is pivotally connected to the armrest receiving portion 7. In the illustrated example, the front leg 1 is pivotally connected 12.

The connecting portion 3 is an intervening mechanism for folding, and is a connecting rod 31 pivotally connected to an intermediate portion of the rear leg 2 (a pivoting portion 34).
And a bearing part 32 rotatably provided at the tip of the connecting rod 31.
And a receiving cylinder part 33 projecting above the bearing part 32, and the bearing part 32 is provided along the rear of the rear leg pipe. Note that the bearing portion 32 and the cylinder portion 33 are formed of a resin body.

The seat portion 4 is composed of a U-shaped pipe 41 having a front opening and a seat cloth 42 similarly to the leg portions, and the front portion is pivotally connected 43 between the side pipes of the front leg portion 1. The rear portion is pivotally connected by a pivot shaft 44 inserted into the bearing portion 32 of the connecting portion 3.

The backrest 5 is also composed of a U-shaped pipe 51 having a lower opening and a back cloth 52 similarly to the seat 4, and both lower ends of the pipe are inserted into the receiving cylinder 33 of the connecting part 3. Be fixed.

The armrest 6 is composed of an outer shell 61 and a locking body 62. The outer shell 61 has a U-shaped cross section open at the bottom, and the side wall 63 of the armrest 6 is formed by cutting the lower edge of the front part upward. The rear portion has a sufficient height, and the rear end portion is pivotally connected 64 to the vertical pipe of the backrest portion 5, and a guide for a projection 72 of the armrest receiving portion 7 described later is formed in the longitudinal direction of the inner surface of the side wall 63. The groove 65 is formed. The locking body 62 has a waveform locking portion 6 on the bottom surface.
6 is formed and positioned inside the outer shell 61, the tip is pivotally connected 67 to the side surface 63 of the outer shell, and the portion corresponding to the hollow portion of the side wall is bulged downward to operate the operating portion 68. It is what it was.

The armrest receiving portion 7 is provided at the upper end of the front and rear legs 1, 2 and has a locking projection 71 which is engaged with the waveform locking portion 66 of the locking body 61 at the top thereof, and has an outer shell. 61 side wall 63
The armrest 6 and the armrest receiving part 7 are connected by projecting a projection 72 that fits into the guide groove 65 provided on the inner surface of the side face and projecting the projection 72 into the guide groove 65. Things.

When the above-mentioned chair is connected by the engagement of the locking projection 71 of the armrest receiving portion 7 and the waveform locking portion 66 of the locking body 62, the backrest portion 5 is moved to the armrest portion. 6, it is maintained at a predetermined angle and is in a stable use state.

Further, when the operating portion 68 is lifted gently and turned upward, the engaged state is released, and the armrest 6 can freely move back and forth within the range of movement of the protrusion 72 in the guide groove 65. . Since the backrest portion 5 is connected to the armrest portion 6, when the armrest portion 6 is moved backward, it tilts in the falling direction, and when it is moved forward, it moves in the upright direction. Therefore, when the armrest 6 is appropriately moved to release the operation portion 68 when the backrest 5 is at a desired angle, the locking body 62 is rotated downward by its own weight, and the waveform locking portion 66 and the armrest receiving portion are rotated. 7, and the backrest 5 is stabilized at a desired angle.

The folding structure will be described.
When the armrest 6 is moved to the position shown in FIG. 2 when the armrest 6 is moved to the position shown in FIG. The connecting rod 31 rotates about the connecting portion 34, and at the same time the front leg 1 is also purchased.
To the rear leg 2 side, and the whole is folded in a flat state.

[0017]

As described above, the present invention provides a reclining structure in which the backrest is provided so as to be able to fall backward and the armrest supporting the backrest can be changed in the connection position with the armrest receiving part. In this case, in particular, the armrest portion is constituted by an outer shell body having a U-shaped cross section with an open lower portion, and a locking body for connecting the armrest receiving portion, and the locking body is rotatable into the outer shell body. It is not necessary to operate the entire armrest part, it is possible to adjust the reclining by simply operating the locking body, the operability is improved, and the locking structure itself can be recognized from the appearance Since it is not possible, it also has the advantage of being excellent in design.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an embodiment of the present invention.

FIG. 2 is a side view of the same (backrest standing state).

FIG. 3 is a side view of the same (backrest portion lying down).

FIG. 4 is an explanatory view (lower perspective view) of the armrest portion and the armrest receiving portion.

FIG. 5 is an explanatory view (sectional view) of the armrest portion and the armrest receiving portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front leg part 11 Reinforcement pipe 12 Pivot part 2 Rear leg part 3 Connection part 31 Connection rod 32 Bearing part 33 Cylinder part 34 Pivot part 4 Seat part 41 Pipe 42 Seat cloth 43 Pivot part 44 Pivot shaft 5 Backrest Part 51 pipe 52 back cloth 6 armrest part 61 outer shell body 62 locking body 63 side wall 64 pivotal connection part 65 guide groove 66 corrugated latching part 67 pivotal connection part 68 operation part 7 armrest receiving part 71 locking protrusion 72 protrusion

Claims (2)

[Claims] An armrest connected to the backrest portion, comprising a seat portion on the front and rear leg portions, a backrest portion provided so as to be able to fall down rearward,
In a reclining chair that is connected to an armrest receiving part connected to a seat or a leg so that the connecting position can be changed to change the lodging angle of a backrest part, the armrest part has a U-shaped cross section with a lower opening, and the rear part is a back. An outer shell body pivotally connected to the backrest and a corrugated locking part formed on the bottom surface are positioned in the outer shell body, and the front part is detachably engaged with the locking part of the armrest receiving part so that the front part can be rotated. A locking projection pivotally connected to the shell body, and provided at the upper end of the armrest receiving portion with a locking projection engaged with the waveform locking portion, and fitted into a guide groove provided on the inner surface of the outer shell. A reclining chair characterized in that a protruding portion that protrudes sideways is provided. 2. The front and rear legs are formed of a U-shaped pipe having an upper opening, and the front and rear legs are integrally connected at an apex with an armrest receiving portion, so that the middle of the front leg pipe and the middle of the rear leg pipe. 2. The reclining chair according to claim 1, wherein a seat frame is pivotally connected to a connecting rod pivotally connected to the chair.