Folding chair

Abstract

The folding chair provided in this utility model has a lower block and a pivot joint to the lower block. A lower component that includes three or more legs connected to the upper block and a An upper component including three or more arms pivotally connected to the upper component and A middle component that connects the lower components and has the same number of ends as the arms, with the ends A seat fabric is provided at one end of the arm away from the upper block, and the upper block includes: The arm is provided with a stopper that restricts the rotation angle of the arm, and the arm is extendable and retractable. The seat fabric is When the arm is held down, it is in a relaxed state, and when the arm is extended, it is in a taut state. It will be established.

Description

[Technical field]

[0001] The present utility model relates to the field of seating technology, in particular to folding chairs. [Background technology]

[0002] Folding chairs are common chairs in daily life, and are usually folded up for convenience in storage and transportation. However, most folding chairs have a complicated structure and The folding operation is cumbersome, which seriously affects the user experience. Summary of the Invention [Problem to be solved by the invention]

[0003] Therefore, there is a need to provide a folding chair which is simple in structure and convenient in operation. [Means for solving the problem]

[0004] The utility model includes a lower block and three or more legs pivotally connected to the lower block. The lower component includes an upper block and three or more components pivotally connected to the upper block. The upper component includes the upper arm, and connects the upper and lower components A central component that connects the arms to the upper blocks of the arms, and a number of ends that are spaced apart from the upper blocks of the arms. The seat fabric is provided at one end of the seat, and the upper block includes a stopper that restricts the rotation angle of the arm. The arm is provided with a retractable portion, and the seat fabric is in a slack state when the arm is retracted. A folding chair is provided in such a way that the arms are in a taut position when the chair is in an extended position. Provided.

[0005] Preferably, the arm includes a forearm and a rear arm, and the maximum length of the forearm is less than the maximum length of the rear arm. .

[0006] Preferably, the stopper includes a front stopper and a rear stopper, and the front stopper restricts the forearm. The rotatable angle is smaller than the rotatable angle of the rear arm restricted by the rear stopper portion.

[0007] Preferably, the number of front arms and rear arms is two each.

[0008] Preferably, the middle component is a shaft provided between the upper block and the lower block. a receiving member, and a central shaft passing through the upper block, the bearing member, and the lower block. .

[0009] Preferably, the upper block is provided with a downward boss and the lower block is provided with an upward boss. The bearing member includes a connection portion interposed between the downward boss and the upward boss, and a bearing member surrounding the connection portion. and an annular portion formed by inserting a plurality of steel balls into the annular portion.

[0010] Preferably, the lower component further includes a torsion spring disposed within the leg.

[0011] Preferably, the number of said legs is four.

[0012] Preferably, the lower block is provided with a stop portion for restricting the rotation angle of the leg.

[0013] Preferably, the seat fabric is formed on the front surface that comes into contact with the user when the user sits on the folding chair. and a back surface facing the front surface, and an arm cover is provided on the back surface of the end portion, and the arm is supported by the upper block of the arm. The end that is separated from the arm is housed within the arm cover.

[0014] The folding chair provided in this utility model has a lower block and a pivot joint to the lower block. A lower component that includes three or more legs connected to the upper block and a An upper component including three or more arms pivotally connected to the upper component and A middle component that connects the lower components and has the same number of ends as the arms, with the ends A seat fabric is provided at one end of the arm away from the upper block, and the upper block includes: The arm is provided with a stopper that restricts the rotation angle of the arm, and the arm is extendable and retractable. The seat fabric is When the arm is held down, it is in a relaxed state, and when the arm is extended, it is in a taut state. When the seat fabric is tensioned, the upper components can roll forward and backward. It does not tip over, so the user can maintain balance while sitting. If you need to do so, first shorten your arms, and at this time the seat fabric will loosen, so that your arms and legs can The folding chair can be stored in its entirety by flipping it over in this direction. [Brief description of the drawings]

[0015] To more clearly describe the specific embodiments of the present invention or the technical solutions in the prior art, In order to clarify the present invention, the following will briefly introduce the drawings necessary for explaining specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present invention, and those skilled in the art can easily understand the invention. Other drawings may be obtained based on these drawings, provided that no constructive labor is performed.

[0016] [Figure 1] FIG. 2 is a schematic diagram of an assembled folding chair in an unfolded state provided in one embodiment. [Diagram 2] FIG. 2 is an exploded schematic view of a folding chair provided in one embodiment with the seat fabric removed. [Diagram 3] FIG. 2 is an enlarged view of part A in FIG. [Figure 4]FIG. 2 is a cross-sectional view of part A in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The technical solution of the present invention will be described below clearly and completely with reference to the drawings. Of course, the described embodiments are not all embodiments but only some embodiments of the present invention. Based on the embodiments of the present utility model, a person skilled in the art obtained the invention without performing any creative work. All other embodiments are within the scope of protection of this utility model.

[0018] In the description of this utility model, the terms "center", "upper", "lower", "left", "right", "vertical", When terms such as "horizontal," "inside," and "outside" appear, the orientation or positional relationship they indicate is The orientation or positional relationship is based on that shown in the attached drawings, and is simplified to facilitate the explanation of the present invention. The purpose of the invention is merely to simplify the design and to ensure that the device or element referred to has a particular orientation and is not This does not indicate or suggest that the device must be constructed and operated in accordance with the Further, the terms "first," "second," and "third" are not intended to limit the scope of the present invention. Where such terminology is used, it is for descriptive purposes only and no relative importance is stated or implied. It cannot be understood as something that

[0019] As shown in FIG. 1 to FIG. 4, the folding chair 100 provided in the present invention has a lower component. The seat component 10, the middle component 20, the upper component 30 and the seat fabric 40 are Here, the lower component 10 includes a lower block 11 and a pin and three or more legs 12 connected to the upper block. The upper block 31 includes three or more arms 32 pivotally connected to the upper block 31. In this embodiment, the number of arms 32 and legs 12 is four. The number may be the same or different, and the folding chair is supported stably on a flat surface, for example. It will be appreciated that the number may be three, five, or more, as long as it can be accommodated.

[0020] The middle component 20 connects the upper component 30 and the lower component 10. Specifically, the central component 20 is made up of an upper block 31 and a lower block 11. The bearing member 21 is provided between the upper block 31 and the lower block 11. and a central shaft 22 extending therethrough.

[0021] The seat fabric 40 has the same number of ends as the number of arms 32. In this embodiment, the seat fabric 40 has four The arm 32 has two ends 41, which are provided at one end of the arm 32 away from the upper block 31. Specifically, the seat fabric 40 is in contact with the user when the user sits on the folding chair 100. The arm cover 410 is provided on the back surface of the end portion 41. The end of the arm 32 that is separated from the upper block 31 is accommodated in the arm cover 410. The seat fabric is equipped with highly breathable mesh to improve the user experience. It is possible.

[0022] The arms 32 are extendable and retractable. In this embodiment, the arms 32 are two front arms 321 and two rear arms 322. The upper part includes the arms 322, and the maximum length of the front arms 321 is less than the maximum length of the rear arms 322. The lock 31 is provided with a stopper for restricting the rotation angle of the arm 32. 1 and a rear stopper 312, and a forearm 321 rotatable by the front stopper 311. The angle is smaller than the rotatable angle of the rear arm 322 restricted by the rear stopper portion 312.

[0023] The seat fabric 40 is in a slack state when the arms 32 are retracted, and in a relaxed state when the arms 32 are extended. Specifically, the seat fabric 40 is provided in a taut state when the seat fabric 40 is in a patch The seat fabric 40 is made of a work cloth, and when the seat fabric 40 is in a taut state, This means that the edge of the folding chair 100 is taut. In this case, the two rear arms 322 are extended to the maximum extent, and the two front arms 321 are also extended to the maximum extent. The seat fabric 40 is taut, and the four arms 32 are attached to the four ends 4 of the seat fabric 40, respectively. 1, the seat cannot be turned over, and the arm 32 is pulled by the taut seat fabric. The cooperation of the 40 allows the seat to be kept in a stable upward open position. When sitting on the seat 40, the center of gravity of the upper component 30 shifts forward or backward. The front stopper 311 and the rear stopper 312 are provided at angles at which the front arm 321 and the rear arm 322 rotate, respectively. This limits the angle at which the upper component 30 can tip forward or backward as a whole. When the folding chair 100 is to be stored, the four arms 32 are first shortened. At this time, the seat fabric 40 loosens and the arms 32 hang down naturally, so that The arms 32 can be turned over and stored together with the legs 12.

[0024] This allows the upper components to move forward and backward when the seat fabric becomes taut. It does not tip over, so the user can maintain balance while sitting. When you need to store the seat, first shorten the arms, and at this time the seat fabric loosens, so that the arms can be The chair can be folded upside down and the whole chair can be stored away. It is simple and convenient to operate, and requires only the cooperation of the upper component 30 and the seat fabric 40. The support member 10 may be configured to provide a stable surface for a user to sit on.

[0025] Preferably, the upper block 31 is provided with a downward boss 313 and the lower block 11 is provided with An upward boss 113 is provided, and the bearing member 21 has a downward boss 313 and an upward boss 113. and a ring-shaped portion 212 surrounding the connection portion 211. In addition, a plurality of steel balls 213 are provided within the annular portion 212. Therefore, the folding chair 100 also has the function of a swivel chair.

[0026] Preferably, the lower component 10 further includes a torsion spring 13 disposed inside the leg 12. In addition, the lower block 11 is provided with a stop portion 110 that restricts the rotation angle of the leg 12. The user can conveniently and quickly open the legs 12 and support the legs 12 when supporting the user's weight. It is possible to keep it stable.

[0027] The folding chair provided in this utility model has a lower block and a pivot joint to the lower block. A lower component that includes three or more legs connected to the upper block and a An upper component including three or more arms pivotally connected to the upper component and A middle component that connects the lower components and has the same number of ends as the arms, with the ends A seat fabric is provided at one end of the arm away from the upper block, and the upper block includes: The arm is provided with a stopper that restricts the rotation angle of the arm, and the arm is extendable and retractable. The seat fabric is When the arm is held down, it is in a relaxed state, and when the arm is extended, it is in a taut state. When the seat fabric is tensioned, the upper components can roll forward and backward. It does not tip over, so the user can maintain balance while sitting. If you need to do so, first shorten your arms, and at this time the seat fabric will loosen, so that your arms and legs can The chair can be flipped over in the opposite direction to store the entire chair away.

[0028] The above embodiments are only intended to illustrate the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments. It should be understood by those skilled in the art that the technical solutions described in the above embodiments are still It is possible to amend the means or to make equivalent substitutions for some or all of its technical features. However, these amendments or replacements may not change the essence of the corresponding technical solutions of the present utility model. There is no deviation from the scope of the technical solutions of each embodiment.

Claims

[Claim 1] A lower section includes a lower block and three or more legs pivotally connected to the lower block. Components and An upper section including an upper block and three or more arms pivotally connected to the upper block. Components and a middle component connecting the upper component and the lower component; The arms have the same number of ends, the ends being located at the ends of the arms away from the upper block. A folding chair including a seat fabric that can be folded, The upper block is provided with a stopper that restricts the rotation angle of the arm, and the arm can be extended and retracted. The seat fabric is in a slack state when the arms are retracted and in a slack state when the arms are extended. and arranged to be in tension when in the The arm includes a forearm and a rear arm, and the maximum length of the forearm is less than the maximum length of the rear arm. 、 The stopper includes a front stopper and a rear stopper, and the front stopper restricts the forearm. The rotatable angle is smaller than the rotatable angle of the rear arm restricted by the rear stopper. Ku, The number of the front arms and the number of the rear arms are each two, The middle component is a shaft provided between the upper block and the lower block. a receiving member, a center shaft penetrating the upper block, the bearing member and the lower block; and The upper block is provided with a downward boss, and the lower block is provided with an upward boss. The bearing member includes a connection portion interposed between the downward boss and the upward boss, and a front and an annular portion provided to surround the connection portion, and a plurality of steel balls are disposed within the annular portion. It was kicked, The lower component further includes a torsion spring disposed within the leg; The number of legs is four, The lower block is provided with a stop portion that restricts the rotation angle of the leg, The seat fabric has a front surface and a back surface which come into contact with the user when the user sits on the folding chair. The arm cover is provided on the rear surface of the end portion, and the arm cover is provided on the rear surface of the end portion. One end away from the arm block is housed within the arm cover, The seat fabric has four ends, the number of which is the same as the number of the arms; The seat fabric is provided with a mesh, The cooperation of the upper component and the seat fabric alone allows a user to sit thereon. Hold the stable part. A folding chair characterized by:

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