JP3088395U - Folding chair - Google Patents

Abstract

(57) [Summary] (Modifications required) [Problem] Folding chairs can be folded and unfolded by simple operations, and can be transported while being stacked in a horizontal direction in a folded state. The task is to provide a chair. SOLUTION: A front leg 1 which is a substantially U-shaped frame body.
, A rear leg 2, a back support frame 3, a seat 4,
The front leg connects a horizontal connecting pipe 12 to a horizontal portion, the other end of the horizontal connecting pipe connects to a support pipe 13, and the support pipe has both ends connected to rear legs. 21 is rotatably inserted, and a substantially L-shaped backrest frame divided into a horizontal portion and a vertical portion is welded to the rear side of the outer peripheral surface of the support tube. The shaft rod inserted into the support tube is provided with an appropriate locking means 22 for locking the horizontal portion of the backrest frame at an appropriate position near both end edges of the support tube.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a foldable chair, and more particularly to a foldable chair capable of storing a plurality of chairs stacked horizontally.

[0002]

[Prior art]

 Chairs are structurally divided into two types: folding and fixed types. The folding chair can be reduced in volume when folded, so it is convenient without taking up space when storing it. However, it is still inconvenient to transport a folded chair. That is, in a general foldable chair, the backrest and the seat are in a horizontal state when the chair is folded. For this reason, when a plurality of chairs are folded and transported at the same time, the horizontal chairs are stacked and transported. However, the stacked chairs slide and move, which is inconvenient for transportation.

In order to solve the above-described drawback, a method of providing a rolling element such as a caster on a leg of the chair to facilitate the transport of the chair, and stacking a plurality of chairs and transporting the chair simultaneously is conceivable. However, in the conventional folding chair, the seat and the backrest are horizontal when folded, and there is no means to connect the individual chairs. Therefore, there is no point in providing a rolling element for the purpose.

[0004]

[Problems to be solved by the invention]

 The object of the present invention is to provide a folding chair which can be transported in a folded state and can be transported while being superposed in a horizontal direction. The folding chair has a simple structure and can be easily folded and unfolded. .

[0005]

[Means to be Solved]

 In view of the drawbacks found in the prior art, the inventor of the present invention has conducted intensive research and has studied the use of a front leg, a rear leg, a backrest support frame, a seat, and a backrest, each of which has a substantially U-shaped frame. A folding chair is constructed, a horizontal connecting pipe is connected to the horizontal portion of the front leg, the other end of the horizontal connecting pipe is connected to a support pipe, and the support pipe has both ends connected to rear legs. Is rotatably inserted, and the support frame is welded with the backrest welded to the back of the outer peripheral surface of the support tube, and the shaft rod inserted into the support tube is close to both end edges of the support tube. The present invention has been completed based on the viewpoint that the problem can be solved by a structure in which appropriate locking means for locking the horizontal portion of the backrest frame are provided at appropriate positions, respectively.

That is, in the folding chair according to the present invention, when the front leg and the rear leg are deployed and used, the locking means provided on the shaft connected to the rear leg is locked to the horizontal portion of the backrest frame. Stabilize the front and rear legs. For this reason, when folding the folding chair, the backrest frame is tilted forward, the upper end of the rear leg is raised rearward, and the locked state between the locking portion and the horizontal portion of the backrest frame is released. Only simplifies folding and unfolding operations. In this state, a plurality of folding chairs can be overlapped in the horizontal direction.

[0007] Further, the provision of the rolling elements at one end of the front and rear legs further facilitates the operation of folding a plurality of chairs and superimposing and transporting them.

The folding chair according to the present invention will be described in detail below. A folding chair according to claim 1, comprising a front leg, a rear leg, a backrest support frame, a seat, and a backrest, wherein the front leg has a substantially U-shaped frame. A horizontal connecting pipe is connected to a horizontal portion of the frame body, the other end of the horizontal connecting pipe is connected to a support pipe, and the support pipe is provided with a shaft rod having both ends connected to rear legs. The support frame is movably inserted and the support frame is welded to the back of the support tube at the rear side thereof, and the back frame is a frame body obtained by bending a tube body. The support rod is divided into a horizontal part and a vertical part, and the shaft rod inserted into the support pipe has a horizontal part of the backrest frame at an appropriate position close to both end edges of the support pipe. Suitable locking means for locking the front and rear legs are provided. When using a chair, when the folding means provided on the shaft connected to the rear leg is locked to the horizontal part of the backrest frame to stabilize the front and rear legs, and the folding chair is folded, Then, the backrest frame is tilted forward, the upper end of the rear leg is raised rearward, the locking state between the locking portion and the horizontal portion of the backrest frame is released, and in this state, a plurality of folding chairs are released. It is configured to be able to overlap in the horizontal direction.

A folding chair according to a second aspect is provided with a rolling element at one end of the front and rear legs according to the first aspect.

According to a third aspect of the present invention, in the folding chair according to the first aspect, the locking means includes a locking plate having one end extending upward to form a hook-shaped locking portion near both end edges of the support tube. It is welded to the appropriate position.

[0011]

[Embodiment of the invention]

 This invention relates to a foldable chair, which can be horizontally folded and superimposed on a plurality of chairs, comprising a front leg, a rear leg, a backrest support frame, a seat, and a backrest. I do. In order to explain the structure and characteristics of such a folding chair, a specific embodiment will be described below with reference to the drawings.

[0012]

【Example】

 As disclosed in FIG. 2, the folding chair (6) according to the present invention comprises a front leg (1), a rear leg (2), a backrest support frame (3), a seat (4), and a backrest (5). And. The front leg (1) has a substantially U-shaped frame body, and connects a horizontal connecting pipe (12) to the frame horizontal portion (11). The other end of the horizontal connection pipe (12) is connected to a support pipe (13). A shaft rod (21) having both ends connected to the rear leg (2) is rotatably inserted into the support tube (13). Further, a back support frame (3) is welded to the rear side of the outer peripheral surface of the support tube (13). The backrest support frame is a frame body formed by bending a tube, and is formed to have a substantially L-shape when viewed from the side, and is divided into a horizontal portion and a vertical portion. A locking plate (22) is welded to the rod (21) inserted into the support tube (13) at an appropriate position close to both end edges of the support tube (13) (see FIG. 2A). . One end of the locking plate (22) extends upward to form a hook-shaped locking portion (221). Further, as disclosed in FIG. 1, a seat (4) is provided on the frame horizontal part (11) of the front leg (1) and the horizontal part of the back support frame (3), and the vertical position of the back support frame (3). Provide a backrest (5) in the part.

A rolling element may be provided at one end of the front leg (1) and one end of the rear leg (2) as disclosed in the drawings.

As disclosed in FIG. 3, when the front leg (1) and the rear leg (2) are deployed and the folding chair (6) is used, a shaft rod (21) connected to the rear leg (2) is used. Since the locking portion (221) of the locking plate (22) provided at the bottom locks to the horizontal portion of the back support frame (3) (see FIG. 2B), the front leg (1) and the rear leg (2) are stabilized. Then, the folding chair (6) is supported.

When folding the folding chair (6), the back support frame (3) is tilted forward as indicated by an arrow in FIG. 3, and the upper end of the rear leg (2) is pulled backward. Waking up results in a folded state as disclosed in FIG. In this case, the locking plate (22) rotates with the operation of the rear leg (2), and the locked state between the locking portion (221) and the horizontal portion of the backrest support frame (3) is released (FIG. 4C, see FIG. 5D). Further, in this state, as shown in FIG. 6, a plurality of folding chairs (6) can be superposed in the horizontal direction and conveyed together.

The above is a preferred embodiment of the present invention, and does not limit the scope of implementation of the present invention. Therefore, any modification or change that can be made by those skilled in the art and having an equivalent effect on the present invention shall fall within the scope of the utility model registration claims of the present invention.

[0017]

[Effect of the invention]

 The folding chair according to the present invention can be folded and unfolded by simple operations, and can be stacked horizontally in a folded state. Can be saved. Further, the structure is simple and the number of manufacturing steps can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a folding chair according to the present invention.

FIG. 2 is an explanatory view showing a structure of a frame in a state where the folding chair according to the present invention is deployed, and a partially enlarged view.

FIG. 3 is an explanatory view showing an operation of folding the folding chair according to the present invention, and an enlarged view of a leg portion.

FIG. 4 is an explanatory view showing a structure of a frame in a state in which the folding chair according to the present invention is folded, and a partially enlarged view.

FIG. 5 is an explanatory view showing an operation of deploying the folding chair according to the present invention, and an enlarged view of a leg.

FIG. 6 is a side view of a state in which a plurality of folding chairs according to the present invention are stacked.

[Brief description of reference numerals]

 DESCRIPTION OF SYMBOLS 1 Front leg 11 Frame horizontal part 12 Horizontal connecting pipe 13 Support pipe 2 Rear leg 21 Shaft rod 22 Locking plate 221 Locking part 3 Backrest support frame 4 Seat 5 Backrest 6 Folding chair

Claims (3)

[Utility model registration claims] 1. A folding chair comprising a front leg, a rear leg, a backrest support frame, a seat, and a backrest, wherein the front leg comprises a substantially U-shaped frame body. A horizontal connecting pipe is connected to a horizontal part of the body, the other end of the horizontal connecting pipe is connected to a support pipe, and a shaft rod having both ends connected to rear legs is rotatably inserted into the support pipe. A backrest is welded to the support frame on the rear side of the outer periphery of the support tube, and the backrest frame is a frame body formed by bending a tube body, and is formed to have a substantially L-shape when viewed from the side, The support rod is divided into a vertical section and a vertical section, and the shaft rod inserted into the support pipe is provided with an appropriate locking means for locking the horizontal section of the backrest frame at an appropriate position close to both end edges of the support pipe. If you use the folding chair with the front and rear legs expanded The locking means provided on the shaft connected to the rear leg locks the horizontal portion of the backrest frame to stabilize the front leg and the rear leg, and when folding the folding chair, the backrest frame is tilted forward, Raises the upper end of the rear leg backward, releases the locking state between the locking part and the horizontal part of the backrest frame, and further allows a plurality of folding chairs to be overlapped in the horizontal direction in this state. Folding chair characterized by doing. 2. The folding chair according to claim 1, wherein a rolling element is provided at one end of each of the front and rear legs. 3. The locking means is characterized in that a locking plate having one end extending upward to form a hook-shaped locking portion is welded to an appropriate position near both ends of the support tube. The folding chair according to claim 1, wherein