WO2016008204A1

WO2016008204A1 - Folding chair

Info

Publication number: WO2016008204A1
Application number: PCT/CN2014/086132
Authority: WO
Inventors: 杨宝庆
Original assignee: 浙江泰普森休闲用品有限公司
Priority date: 2014-07-18
Filing date: 2014-09-09
Publication date: 2016-01-21
Also published as: CN204318077U

Abstract

A folding chair, comprising a support frame and a backrest; the support frame comprises a pair of first foldable X-shape supports (3) provided on both sides of the support frame; freely rotatable first connecting pieces (5) are disposed on the bottom of the back of the pair of first foldable X-shape supports (3), and freely rotatable second connecting pieces (2) are disposed on the top of the back of the pair of first foldable X-shape supports (3); the backrest comprises a pair of backrest tubes (1) and a pair of telescopic tubes (4); the pair of backrest tubes (1) respectively passes through the pair of second connecting pieces (2) in a free swinging manner; the lower ends of the backrest tubes (1) are rotatably and slidably connected to the telescopic tubes (4); one end of each telescopic tube (4) is hinged to a first connecting piece (5) and the other end is rotatably and slidably connected to the upper end of the back of a first foldable X-shape support (3). The folding chair has a simple structure and is easy to make, can be automatically adjusted to a reclined position when a user lies on and applies force to the backrest, without the need of manual adjustment by the user, thus improving the comfort of the folding chair while simplifying operation.

Description

Folding chair

The present application claims priority to Chinese Patent Application No. 2014-2039932, the entire disclosure of which is incorporated herein by reference.

Technical field

The invention relates to the technical field of household products, in particular to a folding chair. Background technique

The chair is a common seat with a backrest. Currently, in order to save space and facilitate storage and carrying, many folding chairs have appeared on the market.

In the prior art, the backrest adjusting mechanism of the folding chair is complicated and cumbersome, and in the course of use, the user needs to leave the folding chair for adjustment, sometimes in order to achieve a comfortable position, even need to repeatedly adjust a plurality of times, which brings the user A lot of inconvenience.

Therefore, how to provide a folding chair so as to simplify the adjustment function of the backrest while not affecting the folding function, so that the user can adjust the backrest and improve the comfort of the folding chair, which is an important technology to be solved by those skilled in the art. problem. Summary of the invention

In view of the above, the present invention provides a folding chair so as to simplify the adjustment mechanism of the backrest while not affecting the folding function, so that the user can adjust the backrest and improve the comfort of the folding chair.

To achieve the above object, the present invention provides the following technical solutions:

A folding chair, comprising:

a tripod comprising a pair of foldable first X-shaped legs disposed on opposite sides of the support frame, and a pair of the first X-shaped legs are provided with a first connection member that is freely rotatable a second connecting member that is freely rotatable is disposed at the top end of the rear side;

The backrest includes a pair of backrest tubes and a pair of telescopic tubes, and a pair of the backrest tubes are respectively rotatably disposed on the pair of the second connecting members, and the lower end of the backrest tube is rotatable and Slidably connected to the telescopic tube, one end of the telescopic tube is hinged on the first connecting member, and the other end is Rotating and slidably coupled to the upper end of the rear side of the first X-shaped leg.

Preferably, the stand comprises a second X-shaped leg disposed on a rear side of the leg, and two bottom ends of the second X-shaped leg are respectively hinged on a pair of the first connecting members, two The top ends are respectively hinged on the second connecting member.

Preferably, the tripod further comprises a third X-shaped leg disposed on a front side of the tripod, and a front side bottom end of the pair of the first X-shaped legs is provided with a third connecting member, the front side of the front side a fourth connecting member is disposed, the bottom ends of the third X-shaped legs are respectively hinged on a pair of the third connecting members, and the two upper ends of the third X-shaped legs are respectively swingably pierced On a pair of said fourth connectors.

Preferably, the two top ends of the third X-shaped legs are respectively provided with armrests extending to both sides of the leg frame.

Preferably, the telescopic tube comprises an inner tube, an outer tube sleeved on the inner tube, and an elastic device, and the elastic device is disposed at one end of the inner tube extending into the outer tube and the outer tube Used to push the inner tube to move axially along the outer tube.

Preferably, an end of the outer tube away from the inner tube is connected to an upper end of the rear side of the first X-shaped leg, and an end of the inner tube remote from the outer tube is hinged on the first connecting member. .

Preferably, the elastic device is a compression coil spring.

Preferably, the folding chair further comprises a seat supported by the stand.

Preferably, the first connecting member, the second connecting member, the third connecting member and the fourth connecting member are all made of engineering plastic.

Preferably, the first X-shaped leg, the second X-shaped leg and the third X-shaped leg are each formed by two circular tubes hinged together in the middle.

As can be seen from the above technical solution, the folding chair provided by the present invention comprises a stand and a backrest, wherein the stand comprises a pair of foldable first X-shaped legs disposed on both sides of the stand, a pair of first X-shaped The bottom end of the rear side of the leg is provided with a first connecting member that is freely rotatable, and the rear end portion is provided with a second connecting member that is freely rotatable; the backrest includes a pair of backrest tubes and a pair of telescopic tubes, and a pair of backrest tubes a corresponding and oscillatingly disposed on a pair of second connecting members, the lower end of the back tube is rotatably and slidably coupled to the telescopic tube, one end of the telescopic tube is hinged on the first connecting member, and the other end is rotatable And slidably coupled to the upper end of the rear side of the first X-shaped leg;

The folding chair with the above structure has a simple structure and is easy to manufacture. During use, when the folding chair is in a normally open state, it can be stably supported by the user, when the user needs to change the sitting posture to make himself more comfortable. It is only necessary to apply a force to the backrest by reclining. At this time, one end of the back tube connected to the telescopic tube pushes the telescopic tube so that one end of the telescopic tube rotates around the first connecting member, and the other end is on the rear side of the first X-shaped leg. The upper end slides, and at the same time, the first X-shaped leg is opened more widely, and the telescopic tube is compressed, so that the folding chair is automatically adjusted to a semi-recumbent posture, and no manual adjustment is required by the user, which simplifies the operation and improves the comfort of the folding chair. . DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic perspective view of a folding chair in a folded state according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of a folding chair in an open state according to an embodiment of the present invention; FIG. 4 is a front view of the folding chair in an open state according to an embodiment of the present invention; FIG.

Figure 5 is a plan view showing the folding chair in an open state according to an embodiment of the present invention;

Figure 6 is a side view of the folding chair in an open state according to an embodiment of the present invention;

Figure 7 is a side elevational view of the folding chair backrest in a back state according to an embodiment of the present invention;

8 is a perspective view of a backrest in an open state of a folding chair according to an embodiment of the present invention;

FIG. 9 is an exploded view of a folding chair backrest adjusting mechanism according to an embodiment of the present invention. detailed description

The present invention provides a folding chair so as to simplify the adjustment mechanism of the backrest while not affecting the folding function, so that the user can adjust the backrest and improve the comfort of the folding chair.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, instead of All embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

1 and FIG. 7 , FIG. 1 is a schematic perspective view of a folding chair in a folded state according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of a folding chair in an open state according to an embodiment of the present invention; FIG. 4 is a front view of the folding chair in an open state; FIG. 4 is a front view of the folding chair in an open state according to an embodiment of the present invention; FIG. 6 is a side view of the folding chair in an open state according to an embodiment of the present invention; FIG. 7 is a side view of the folding chair back in a back state.

The present invention provides a folding chair including a stand and a backrest.

Wherein, the support frame mainly serves as a support, and includes a pair of foldable first X-shaped legs 3 disposed on both sides of the support frame, and the bottom end of the rear side of the first X-shaped leg 3 is provided with free The rotating first connecting member 5 and the rear side end are respectively provided with a second connecting member 2 which is freely rotatable; the backrest includes a pair of backrest tubes 1 and a pair of telescopic tubes 4, and the pair of backrest tubes 1 are in one-to-one correspondence and are freely swingable The grounding member is disposed on a pair of second connecting members 2, and the lower end of the backrest tube 1 is rotatably and slidably coupled to the telescopic tube 4. One end of the telescopic tube 4 is hinged on the first connecting member 5, and the other end is rotatable and It is slidably coupled to the upper end of the rear side of the first X-shaped leg 3.

Compared with the prior art, the folding chair provided by the invention has a simple structure and is convenient to manufacture. During use, when the folding chair is in a normally open state, the user can stably support the user when the user needs to change the sitting posture. When making yourself more comfortable, it is only necessary to apply a force to the backrest by reclining. At this time, one end of the back tube 1 connected to the telescopic tube 4 pushes the telescopic tube 4 so that one end of the telescopic tube 4 rotates around the first connecting member 5. The other end slides on the upper end of the rear side of the first X-shaped leg 3, and at the same time, the first X-shaped leg 3 is opened more widely, and the telescopic tube 4 is compressed, so that the folding chair is automatically adjusted to a semi-recumbent posture, without requiring the user to perform Manual adjustment, simplifying the operation and improving the comfort of the folding chair.

In order to make the supporting frame more stable, the folding function is not affected. In the embodiment of the invention, the supporting leg further comprises a second X-shaped leg 10 disposed on the rear side of the supporting frame, and two bottom ends of the second X-shaped leg 10 They are respectively hinged on a pair of first connecting members 5, and the two top ends are respectively hinged on the second connecting member 2.

Further, the stand comprises a third X-shaped leg 7 disposed on the front side of the leg frame, and a third connecting member 6 is disposed on the front end of the front side of the first X-shaped leg 3, and the front end is provided with a first The four connecting members 8 and the two bottom ends of the third X-shaped legs 7 are respectively hinged on the pair of third connecting members 6, the third X-shaped branch The two upper ends of the foot 7 are respectively swingably passed through a pair of fourth connecting members 8.

By providing the second X-shaped leg 10 and the third X-shaped leg 7 respectively on the front and rear sides of the leg frame, a pair of the first X-shaped leg 10 and the third X-shaped leg 7 can be folded during use. The close proximity of an X-shaped leg 3 facilitates folding while enhancing the stability of the stand.

Preferably, since the third X-shaped leg 7 is located on the front side of the leg frame, in order to improve the comfort of the user, in the embodiment of the present invention, the two top ends of the third X-shaped leg 7 are respectively provided with a tripod stand. Armrests 9 extending on both sides.

The telescopic tube 4 can adopt various structures. Please refer to FIG. 8 and FIG. 9. FIG. 8 is a perspective view of the backrest in an open state of the folding chair according to an embodiment of the present invention; FIG. 9 is a folding chair back adjustment according to an embodiment of the present invention. In the embodiment of the present invention, the telescopic tube 4 includes an inner tube 401, an outer tube 402 sleeved on the inner tube 401, and an elastic device 403. The elastic device 403 is disposed in the outer tube 402. Between one end and the outer tube 402 is used to push the inner tube 401 to move axially along the outer tube 402. Thus, during the backrest of the backrest, the elastic means 403 applies a restriction to the inner tube 401 to prevent it from being inserted into the outer tube 402. The force, avoiding the backrest moving backward too fast, causes the user to lose the center of gravity; when the user gets up and leaves the folding chair, the elastic device 403 can also assist the backrest to return to the original normal open position, without the user manually resetting it. , simplifies the operation. Preferably, one end of the outer tube 402 away from the inner tube 401 is connected to the upper end of the rear side of the first X-shaped leg 3, and one end of the inner tube 401 away from the outer tube 402 is hinged to the first connecting member 5.

The resilient means 403 can be implemented in a variety of configurations. In the embodiment of the invention, the resilient means 403 is a compression coil spring.

In the embodiment of the present invention, the folding chair further comprises a seat supported by the support frame, and the seat surface can be made of a plurality of materials. In order to ensure the strength, reduce the weight, and facilitate the folding, the seat surface can be made of canvas.

The first connecting member 5, the second connecting member 6, the third connecting member 6, and the fourth connecting member 8 can be made of a plurality of materials. In the embodiment of the present invention, the first connecting member 5 and the second connecting member 2 are The third connecting member 6 and the fourth connecting member 8 are both made of engineering plastic.

In the embodiment of the present invention, the first X-shaped leg 3, the second X-shaped leg 10, and the third X-shaped leg 7 are each formed by two circular tubes that are hinged together in the middle. Of course, it is not limited thereto, the first X The leg 3, the second X leg 10 and the third X leg 7 can also adopt other structures, for example, Plate-like or columnar structure and so on.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded to the broadest scope of the principles and novel features disclosed herein.

Claims

Rights request

A folding chair, characterized in that it comprises:

a tripod comprising a pair of foldable first X-shaped legs (3) disposed on opposite sides of the leg frame, and a pair of the bottom sides of the first X-shaped legs (3) are provided with freely rotatable The first connecting member (5), the rear side end is provided with a second connecting member (2) which is freely rotatable;

The backrest includes a pair of backrest tubes (1) and a pair of telescopic tubes (4), and a pair of the backrest tubes (1) are one-to-one correspondingly and swingably disposed through a pair of the second connecting members (2) The lower end of the backrest tube (1) is rotatably and slidably coupled to the telescopic tube (4), and one end of the telescopic tube (4) is hinged to the first connecting member (5). The other end is rotatably and slidably coupled to the upper end of the rear side of the first X-shaped leg (3).

2. The folding chair according to claim 1, wherein the stand comprises a second X-shaped leg (10) disposed on a rear side of the leg, the second X-shaped leg (10) The two bottom ends are respectively hinged on a pair of the first connecting members (5), and the two top ends are respectively hinged on the second connecting member (2).

3. The folding chair according to claim 2, wherein the stand comprises a third X-shaped leg (7) disposed on a front side of the stand, and a pair of the first X-shaped legs ( 3) The front side bottom end is provided with a third connecting member (6), and the front side top end is provided with a fourth connecting member (8), and the two bottom ends of the third X-shaped leg (7) are respectively hinged at On a pair of the third connecting members (6), the two upper ends of the third X-shaped legs (7) are respectively swingably passed through a pair of the fourth connecting members (8).

4. A folding chair according to claim 3, characterized in that the two top ends of the third X-shaped legs (7) are respectively provided with armrests (9) extending to both sides of the legrest.

The folding chair according to claim 1, wherein the telescopic tube (4) comprises an inner tube (401), an outer tube (402) sleeved on the inner tube (401), and an elastic device (403), the elastic device (403) is disposed between an end of the inner tube (401) extending into the outer tube (402) and the outer tube (402) for pushing the inner tube ( 401) moving axially along the outer tube (402).

The folding chair according to claim 5, wherein the outer tube (402) is away from the One end of the inner tube (401) is connected to the rear upper end of the first X-shaped leg (3), and one end of the inner tube (401) remote from the outer tube (402) is hinged at the first end On the connector (5).

The folding chair according to claim 5, characterized in that the elastic means (403) is a compression coil spring.

8. The folding chair according to claim 1, wherein the folding chair further comprises a seat supported by the stand.

9. The folding chair according to claim 1, wherein the first connecting member (5), the second connecting member (2), the third connecting member (6), and the fourth connecting member (8) are both Made of engineering plastics.

10. A folding chair according to claim 1 wherein said first X-shaped leg (3), said second X-shaped leg (10) and said third X-shaped leg (7) are each The two central tubes are hinged together.