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KR-20260063433-A - a height-adjustable folding chair

KR20260063433AKR 20260063433 AKR20260063433 AKR 20260063433AKR-20260063433-A

Abstract

A height-adjustable folding chair comprises: a first chair body portion that contacts the user's buttocks on one side; a pair of first leg portions that are stored in a concave storage groove formed on the other side opposite to the one side of the first chair body portion and are rotatably coupled to a bottom surface formed by the storage groove; a pair of second leg portions that are stored together with the first leg portions in the storage groove and are rotatably coupled to the other side of the first chair body portion; a second chair body portion that contacts the user's waist; a hinge unit coupled to the corners of the first and second chair body portions so that the first chair body portion and the second chair body portion are folded; a height adjustment member that is inserted into a hollow formed in the first and second leg portions and is height-adjustable at a first interval; and a fine adjustment member coupled to the height adjustment member and finely adjusting the height of the first and second leg portions at a second interval narrower than the first interval.

Inventors

  • 권민서

Assignees

  • 권민서

Dates

Publication Date
20260507
Application Date
20241030

Claims (5)

  1. A first chair body comprising: a first chair body portion that contacts the user's buttocks on one side; a pair of first leg portions that are stored in a concave storage groove formed on the other side opposite to the one side of the first chair body portion and are rotatably coupled to a bottom surface formed by the storage groove; and a pair of second leg portions that are stored together with the first leg portions in the storage groove and are rotatably coupled to the other side of the first chair body portion. A second chair body including a second chair body portion that contacts the user's waist; A hinge unit coupled to the corners of the first and second chair bodies so that the first and second chair bodies are folded; A height adjustment member inserted into a hollow formed in the first and second leg portions and having its height adjusted at a first interval; and A height-adjustable folding chair comprising a fine adjustment member coupled to the height adjustment member and finely adjusting the height of the first and second leg portions to a second gap narrower than the first gap.
  2. In paragraph 1, The height-adjustable folding chair comprises a body inserted into the hollows of the first and second leg portions, a concave groove formed on the side of the body, a spring inserted into the groove, and a locking member connected to the spring, protruding in part from the side, and inserted into one of a plurality of openings formed at the first interval in the leg portions.
  3. In paragraph 2, The height-adjustable folding chair includes a fine adjustment member comprising a fine adjustment screw portion that is screw-fastened to a female screw portion formed in a concave groove shape from the bottom of the body, and a support portion that is coupled to the end of the fine adjustment screw portion, is supported on the ground, and has an uneven surface formed on its outer side.
  4. In paragraph 1, The first leg portion is hinge-coupled by a first hinge bracket coupled to the first chair body portion and a first hinge pin that penetrates the first leg portion and is coupled to the first hinge bracket, and A height-adjustable folding chair in which the second leg portion is hinge-connected by a second hinge bracket connected to the first chair body portion and a second hinge pin that penetrates the second leg portion and is connected to the second hinge bracket.
  5. In paragraph 1, The above hinge unit comprises two first bushing portions spaced apart from each other on the side of the first chair body portion, one second bushing portion inserted between the two second bushing portions on the side of the second chair body portion, and a rotation axis passing through the first and second bushing portions, for a height-adjustable folding chair.

Description

a height-adjustable folding chair The present invention relates to a height-adjustable folding chair, and in particular to a height-adjustable folding chair capable of adjusting the height of the chair and finely adjusting the height of the chair legs in two stages. Generally, a chair consists of a seat portion that supports the user's buttocks, a backrest that supports the user's back, and multiple legs formed on the seat portion, and the legs have a structure capable of supporting a load when a person sits on the seat portion. The seat portion is formed in a rectangular shape, for example, and the lower surface of the seat portion includes four legs, each having a predetermined height relative to the ground. Depending on the intended use, chairs with foldable legs have been developed to facilitate portability and storage. In Public Patent 10-2014-0058198, a portable folding chair (publication date May 14, 2014), a portable folding chair is disclosed that is easy to carry or store. The portable folding chair is capable of being deformed to expand the space of the seating area so that it can be used as a two-person chair, and a technology is disclosed in which the seating area and the base can be rotated and folded to minimize the volume when not in use. However, the portable folding chair disclosed in Public Patent 10-2014-0058198 has four legs, and has a problem in that it causes discomfort due to the imbalance of the chair when the ground is sloped or has uneven surfaces. In addition, the portable folding chair disclosed in Public Patent 10-2014-0058198 does not include a function and technology to adjust the chair height in accordance with the user's height, and also has the problem of being difficult to finely adjust the height of the chair legs. FIG. 1 is an external perspective view showing a height-adjustable folding chair in a folded state according to one embodiment of the present invention. FIG. 2 is an exploded perspective view showing the height-adjustable folding chair illustrated in FIG. 1 in an unfolded state. Figure 3 is an enlarged view of section 'A' of Figure 2. Figure 4 is a cross-sectional view taken along line II' of Figure 2. The present invention described below is capable of various modifications and may have various embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. In describing the invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the invention. The terms used in this patent are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this patent, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Additionally, terms such as "first," "second," etc., may be used to distinguish and describe various components, but said components shall not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. In addition, if at least two different embodiments are described in this patent, each embodiment may use all or part of its components in combination and mixed with one another without further description, as long as it does not deviate from the technical concept of the present invention. FIG. 1 is an external perspective view showing a height-adjustable folding chair according to an embodiment of the present invention in a folded state. FIG. 2 is an exploded perspective view showing the height-adjustable folding chair shown in FIG. 1 in an unfolded state. FIG. 3 is an enlarged view of section 'A' of FIG. 2. FIG. 4 is a cross-sectional view taken along the line I-I' of FIG. 2. Referring to FIGS. 1 to 4, the height-adjustable folding chair (600) includes a first chair body (100), a second chair body (200), a hinge unit (300), a height adjustment member (400), and a fine height adjustment member (500). The height-adjustable folding chair (600) can be folded by the hinge unit (300) as shown in FIG. 1, with the first chair body (100) and the second chair body (200) folded so that they are easy to carry and store. In contrast, the height-adjustable folding chair (600) is configured such that the first chair body (100) and the second chair body (200) are unfolded to 90 degrees by means of a hinge unit (300) as shown i