Folding chair

Abstract

The application provides a folding chair with an unfolded state and a folded state, comprising a first chair leg frame, a second chair leg frame rotatably connected with the first chair leg frame to pivot relative to the first chair leg frame between an unfolded position and a folded position, and a seat plate structure comprising a seat plate and an auxiliary rod, wherein the seat plate comprises a first end and a second end, and the auxiliary rod comprises a third end and a fourth end; the first end of the seat plate is rotatably connected with the first chair leg frame, the second end of the seat plate is rotatably connected with the third end of the auxiliary rod, and the fourth end of the auxiliary rod is slidably connected with the second chair leg frame. The folding chair provided by the application is convenient and smooth to fold, and has high operability.

Description

Technical Field

[0001] This application relates to the field of folding chair technology, and more particularly to a foldable children's dining chair. Background Technology

[0002] High chairs for children come in both fixed and folding styles. Folding high chairs are very popular with parents because they are easy to store and carry. However, most existing folding high chairs have complex structures, are inconvenient to fold, and have poor operability.

[0003] The information in the background section is merely information known only to the inventor and does not imply that such information had entered the public domain before the date of this application, nor does it imply that it can be considered prior art in this disclosure. Utility Model Content

[0004] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this section is not intended to identify key or essential parts of this application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form. Further details will be explained in other parts of this application.

[0005] To address the issues of complex structure and inconvenient folding in existing foldable children's high chairs, this application provides a folding chair with an unfolded state and a folded state, comprising: a first chair leg frame; a second chair leg frame rotatably connected to the first chair leg frame, pivoting relative to the first chair leg frame between the unfolded and folded positions; and a seat structure including a seat plate and an auxiliary rod; the seat plate includes a first end and a second end, and the auxiliary rod includes a third end and a fourth end; the first end of the seat plate is rotatably connected to the first chair leg frame, the second end of the seat plate is rotatably connected to the third end of the auxiliary rod, and the fourth end of the auxiliary rod is slidably connected to the second chair leg frame.

[0006] In some embodiments, the second chair leg frame includes a slide groove that extends along the length of the second chair leg frame; a slider is slidably connected to the slide groove; and the fourth end of the auxiliary rod is rotatably connected to the slider.

[0007] In some embodiments, the second chair leg frame includes a slide rail extending along the length of the second chair leg frame; a slider is fitted onto the slide rail and slidably connected to the slide rail; and the fourth end of the auxiliary rod is rotatably connected to the slider.

[0008] In some embodiments, the second chair leg frame further includes: an upper limit surface that restricts the slider to slide upward to the furthest position; wherein, in the unfolded state, the slider abuts against the upper limit surface; and a lower limit surface that restricts the slider to slide downward to the furthest position; wherein, in the retracted state, the slider abuts against the lower limit surface.

[0009] In some embodiments, in the unfolded state, the seat plate is in a horizontal position.

[0010] In some embodiments, during the pivoting of the second chair leg relative to the first chair leg, the angle (β) between the extension direction of the auxiliary rod and the length direction of the second chair leg is not greater than 60°.

[0011] In some embodiments, the first chair leg frame and the second chair leg frame are rotatably connected by a rotating joint.

[0012] In some embodiments, one of the first chair leg frame and the second chair leg frame is L-shaped, and the other is straight.

[0013] In some embodiments, the folding chair further includes a locking member, mounted on the second or first leg support, for locking the rotating joint in the unfolded state and / or the folded state.

[0014] In some embodiments, in the retracted position, the main body portion of the first chair leg is parallel to the second chair leg.

[0015] In some embodiments, the first chair leg frame includes a first chair leg and a second chair leg, the first chair leg and the second chair leg being arranged parallel to each other in the left-right direction; and the second chair leg frame includes a third chair leg and a fourth chair leg, the third chair leg and the fourth chair leg being arranged parallel to each other in the left-right direction.

[0016] In some embodiments, the folding chair further includes a removable protective section detachably connected to the seat plate.

[0017] In some embodiments, the folding chair further includes a footrest rotatably connected to the first chair leg frame.

[0018] This application provides a folding chair. The folding chair includes a first leg frame, a second leg frame, and a seat structure. The first and second leg frames are rotatably connected. The seat structure includes a seat plate and an auxiliary rod. A first end of the seat plate is rotatably connected to the first leg frame, a second end of the seat plate is rotatably connected to the third end of the auxiliary rod, and a fourth end of the auxiliary rod is slidably connected to the second leg frame. The rotatable and slidable connections work together to achieve folding and unfolding. By providing the auxiliary rod, the resistance during folding and unfolding is further reduced, improving the operability of folding and unfolding. This folding chair has a simple structure, is easy and smooth to fold, and has strong operability. Attached Figure Description

[0019] The following accompanying drawings describe in detail the exemplary embodiments disclosed in this application. The same reference numerals denote similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting and exemplary, and the drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Other embodiments may similarly fulfill the inventive intent of this application. It should be understood that the drawings are not drawn to scale.

[0020] in:

[0021] Figure 1 A schematic diagram of the unfolded state of a folding chair according to an embodiment of this application is shown;

[0022] Figure 2 A schematic diagram of a folding chair in a folded state according to an embodiment of this application is shown; and

[0023] Figure 3 A schematic diagram of a folding chair with a slide rail slider structure provided according to an embodiment of this application is shown. Detailed Implementation

[0024] The following description provides specific application scenarios and requirements for this application, intended to enable those skilled in the art to manufacture and use the contents of this application. In consideration of the following description, these and other features of this disclosure, as well as the operation and function of related structural elements, and the economy of component combination and manufacture, can be significantly improved. All of these form part of this disclosure with reference to the accompanying drawings. However, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this disclosure. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.

[0025] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not restrictive. For example, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” as used herein may also include the plural forms. When used in this disclosure, the terms “comprising,” “including,” and / or “containing” mean that the associated feature, integer, step, operation, element, and / or component is present, but do not preclude the presence of one or more other features, integers, steps, operations, elements, components, and / or groups, or the possibility of adding other features, integers, steps, operations, elements, components, and / or groups to the system / method.

[0026] In view of the following description, these and other features of this application, as well as the operation and function of the related elements of the structure, and the economy of assembly and manufacture of the components, can be significantly improved. All of these form part of this disclosure with reference to the accompanying drawings. However, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this disclosure. It should also be understood that the drawings are not drawn to scale.

[0027] In this application, "X includes at least one of A, B, or C" means that X includes at least A, or X includes at least B, or X includes at least C. That is, it can include only any one of A, B, and C, or any combination of A, B, and C, as well as other possible content / elements. The arbitrary combination of A, B, and C can be A, B, C, AB, AC, BC, or ABC.

[0028] In this application, unless explicitly stated otherwise, the relationships between structures can be direct or indirect. For example, when describing "A is connected to B," unless it is explicitly stated that A and B are directly connected, it should be understood that A can be directly connected to B or indirectly connected to B. Similarly, when describing "A is above B," unless it is explicitly stated that A is directly above B (AB is adjacent and A is above B), it should be understood that A can be directly above B or indirectly above B (AB is separated by other elements, and A is above B). Furthermore, when describing "A is adjacent to B," unless it is explicitly stated that A and B are directly adjacent, it should be understood that A can be directly adjacent to B or separated from B by other components. And so on.

[0029] This application provides a folding chair. As an example... Figure 1 A structural schematic diagram of a folding chair 001 according to an embodiment of this application is shown. For example, this folding chair can be used as a children's high chair or as a chair for other purposes. For ease of explanation, this application will use a foldable children's high chair as an example. (Reference) Figure 1The folding chair 001 may include a first chair leg frame 100, a second chair leg frame 200, and a seat structure 300.

[0030] For ease of explanation, it is necessary to specify the terms "up," "down," "front," "back," "left," and "right" in the following description of this application. The description of the folding chair 001 in this application is based on the assumption that the folding chair 001 is placed on a horizontal surface. Therefore, "up" refers to the direction the folding chair 001 faces when placed on a horizontal surface, and "down" refers to the direction it faces when placed on the ground; "front" refers to the direction the child faces when sitting on the chair 001, and "back" refers to the direction the child faces away from when sitting on the chair 001; "left" refers to the direction the child's left hand is in when sitting on the chair 001, and "right" refers to the direction the child's right hand is in when sitting on the chair 001.

[0031] One of the first chair leg support 100 and the second chair leg support 200 can be a front leg and the other a rear leg. For ease of explanation, in the following description of this application, the first chair leg support 100 is used as a front leg and the second chair leg support 200 is used as a rear leg as an example. Figure 1 and Figure 2 As shown. Those skilled in the art will understand that the first chair leg 100 can also be a rear leg and the second chair leg 200 can also be a front leg, without affecting the core spirit of this application.

[0032] The first chair leg frame 100 may include a first chair leg 110 and a second chair leg 120. The first chair leg 110 and the second chair leg 120 are arranged parallel to each other in the left-right direction. The first chair leg frame 100 may also include a first crossbeam 130, which may be plate-shaped or tubular. The first crossbeam 130 may be located at the part of the dining chair 001 near the ground, and its two ends are fixedly connected to the first chair leg 110 and the second chair leg 120 respectively, so as to improve the stability of the dining chair 001.

[0033] The second chair leg frame 200 may include a third chair leg 210 and a fourth chair leg 220. The third chair leg 210 and the fourth chair leg 220 are arranged parallel to each other in the left-right direction. The second chair leg frame 200 may also include a second crossbeam 230, which may be plate-shaped or tubular. The second crossbeam 230 may be located at the part of the dining chair 001 near the ground, and its two ends are fixedly connected to the third chair leg 210 and the fourth chair leg 220 respectively, so as to improve the stability of the dining chair 001.

[0034] The second chair leg 200 is rotatably connected to the first chair leg 100, and pivots relative to the first chair leg 100 between an unfolded position and a folded position. Specifically, the first chair leg 110 and the third chair leg 210 are rotatably connected via a rotating joint 10; the second chair leg 120 and the fourth chair leg 220 are rotatably connected via a second rotating joint 20. Accordingly, the folding chair 001 has an unfolded state and a folded state. In the unfolded state, the second chair leg 200 is in the unfolded position relative to the first chair leg 100; in the folded state, the second chair leg 200 is in the folded position relative to the first chair leg 100.

[0035] As an example, Figure 1 This diagram illustrates a folding chair 001 in its unfolded position according to an embodiment of this application. Figure 2 A schematic diagram showing a folding chair 001 according to an embodiment of this application in its stowed position is illustrated. (Reference) Figure 1 and Figure 2 The upper ends of the second chair leg 200 and the first chair leg 100 can be connected by rotating joints 10 and 20, thus allowing the first chair leg 100 and the second chair leg 200 to rotate relative to each other. Viewed from the left and right, one of the first chair leg 100 and the second chair leg 200 can be L-shaped, and the other can be straight. For example, in... Figure 1 In this design, the tops of the first chair leg 110 and the second chair leg 120 are bent to form the armrests of the seat, thus making the first chair leg frame 100 appear L-shaped when viewed from the side. Figure 2 As shown, in the folded position, the main body 101 of the L-shaped first chair leg support 100 and the straight-shaped second chair leg support 200 are parallel and spaced apart. The space between them can accommodate the seat structure 300. The parallel design facilitates the placement and / or storage of the dining chair 001 after folding. The term "parallel" here refers to what is considered generally parallel by those skilled in the art in the seating industry; that is, the angle between the first chair leg support 100 and the second chair leg support 200 within ±3° can be considered parallel.

[0036] The seat structure 300 is located in the space between the first chair leg frame 100 and the second chair leg frame 200. The seat structure 300 includes a seat plate 310 and an auxiliary rod 320. In the unfolded position, the seat plate 310 is approximately parallel to the ground, in a horizontal position. The first chair leg frame 100, the second chair leg frame 200, and the seat structure 300 form a stable triangular support structure. (Reference) Figure 2 In the folded position, the seat 310 is vertically positioned between the first chair leg support 100 and the second chair leg support 200. The first chair leg support 100, the seat 310, and the second chair leg support 200 form a Z-shape.

[0037] The seat plate 310 includes a first end 312 and a second end 314, and the auxiliary rod 320 includes a third end 322 and a fourth end 324. The first end 312 of the seat plate 310 is rotatably connected to the first chair leg frame 100; the second end 314 is rotatably connected to the third end 322 of the auxiliary rod 320; and the fourth end 324 of the auxiliary rod 320 is slidably connected to the second chair leg frame 200.

[0038] Specifically, such as Figure 1 and Figure 2 As shown, according to some embodiments of this application, the second chair leg support 200 may include a slide groove 212. Each chair leg in the second chair leg support 200 may be provided with a slide groove. The slide groove 212 extends along the length direction of the chair legs 210, 220. A slider is located within the slide groove 212 and is slidably connected to the slide groove 212. According to other embodiments of this application, such as Figure 3 As shown, the second chair leg support 200 may also include a slide rail 216. On each chair leg, the slide rail 216 extends along the length of the chair legs 210 and 220. A slider 218 is fitted onto the slide rail 216 through a central through-hole, thereby slidably connecting with the slide rail 216.

[0039] The design of the auxiliary rod 320 allows the angle β between the extension direction of the auxiliary rod 320 and the extension direction of the slide groove 212 to be controlled within a certain range during the pivoting process of the second chair leg frame 200 relative to the first chair leg frame 100, thereby making the folding and unfolding processes smoother. For example, during the pivoting process of the second chair leg frame 200 relative to the first chair leg frame 100, the angle β between the extension direction of the auxiliary rod 320 and the extension direction of the slide groove 212 is no greater than 60°, to make the folding and unfolding processes smoother. For example, the angle β can be no greater than any of the following values ​​or any two of the following ranges: 60°, 55°, 50°, 45°, 40°, 35°, 30°, 25°, 20°, 15°, 10°, 5°. For instance, during the folding or unfolding process of the chair 001, the angle between the first chair leg frame 100 and the second chair leg frame 200 changes, causing a change in the space between them. Correspondingly, the first end 312 of the seat plate 310 rotates relative to the first chair leg 100; the second end 314 also undergoes relative displacement relative to the second chair leg 200. Therefore, the angle between the seat plate 310 and the slide groove 212 or slide rail 216 also changes. Without the auxiliary rod 320, the seat plate 310 would directly exert pressure perpendicular to the sliding surface with the slide groove 212 or slide rail 216. However, since the auxiliary rod 320 can rotate simultaneously relative to the slider and the seat plate, its presence reduces the pressure perpendicular to the sliding surface, making the opening and closing of the first chair leg 100 and the second chair leg 200 smoother. For example... Figure 1As shown, in the unfolded state, the seat 310 and the second leg frame 200 form an acute angle of several tens of degrees. However, the position of the auxiliary rod 320 is almost along the extension direction of the slide groove 212. Therefore, the auxiliary rod 320 cannot transmit force perpendicular to the slide groove 212. Thus, when the first leg frame 100 and the second leg frame 200 are closed, the force transmitted through the auxiliary rod 320 is only the force along the extension direction of the slide groove 212. Therefore, the chair 001 closes very smoothly.

[0040] In some embodiments, the folding chair 001 may further include a locking element and a trigger button 30 for the locking element. The locking element may be mounted on the second leg support 200 and / or the first leg support 100. In the unfolded position and / or folded position, the locking element can be triggered by the trigger button 30 to lock the rotating joints 10, 20, or the seat structure 300, thereby improving seat stability and safety. The locking element can be used in any manner to lock the folding chair 001. For example, the locking element may be a meshing gear structure in the rotating joints 10, 20, where the coupling and decoupling of two gears in the structure is triggered by the locking button 30 to lock and unlock the rotating joints 10, 20.

[0041] In some embodiments, the second chair leg support 200 may include an upper limit surface 201 and a lower limit surface 202. The upper limit surface 201 is configured to limit the slider to the furthest position it can slide upwards, and the lower limit surface 202 is configured to limit the slider to the furthest position it can slide downwards. As an example, the upper limit surface 201 corresponds to the unfolded position; when the slider abuts against the upper limit surface 201, the chair 001 is in the unfolded state. The lower limit surface 202 corresponds to the folded position; when the slider abuts against the lower limit surface 202, the chair 001 is in the folded state. As an example, the upper limit surface 201 and the lower limit surface 202 are perpendicular to the extending direction of the slide groove 212.

[0042] In some embodiments, the folding chair 001 may further include a footrest 400. The footrest 400 may be rotatably connected to the first chair leg frame 100. In the unfolded state, the footrest 400 can be flipped to a position approximately parallel to the ground. In the folded state, the footrest 400 can be folded into the space between the first chair leg 110 and the second chair leg 120. As an example, the connection position between the footrest 400 and the first chair leg frame 100 can be moved vertically to accommodate children of different heights.

[0043] In some embodiments, the folding chair 001 may further include a removable protective section (not shown). The removable protective section may include a protective railing to provide protection for younger children. The removable protective section is detachably connected to the seat structure 300. This expands the age range of children to whom the high chair is applicable and broadens the scenarios in which it can be used. In some embodiments, the removable protective section may include a tray.

[0044] In summary, this application provides a folding chair. The folding chair includes a first leg frame, a second leg frame, and a seat structure. The first and second leg frames are rotatably connected. The seat structure includes a seat plate and an auxiliary rod. A first end of the seat plate is rotatably connected to the first leg frame, a second end of the seat plate is rotatably connected to the third end of the auxiliary rod, and a fourth end of the auxiliary rod is slidably connected to the second leg frame. The rotatable and slidable connections work together to achieve folding and unfolding. By providing the auxiliary rod, the resistance during folding and unfolding is further reduced, improving the operability of folding and unfolding. This folding chair has a simple structure, is easy and smooth to fold, and has strong operability.

[0045] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this disclosure and are within the spirit and scope of the exemplary embodiments of this disclosure.

[0046] In the description of this disclosure, unless otherwise stated, the term “comprising” and its variations shall be understood as open-ended inclusion, i.e., “including but not limited to”; the term “based on” shall be understood as “at least partially based on”; and the symbol “ / ” means “or”.

[0047] Furthermore, certain terms used in this application have been used to describe embodiments of this disclosure. For example, "an embodiment," "an embodiment," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with that embodiment may be included in at least one embodiment of this disclosure. Therefore, it is to be emphasized and understood that two or more references to "an embodiment" or "an embodiment" or "alternative embodiment" in various parts of this specification do not necessarily refer to the same embodiment. Moreover, specific features, structures, or characteristics may be suitably combined in one or more embodiments of this disclosure.

[0048] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments of this application. Other modified embodiments are also within the scope of this application. Therefore, the embodiments disclosed herein are merely examples and not limitations. Those skilled in the art can adopt alternative configurations based on the embodiments in this application to implement the utility model in this application. Therefore, the embodiments of this application are not limited to those embodiments precisely described in the application.

Claims

1. A folding chair, having an unfolded state and a folded state, characterized in that, include: First chair leg support; The second chair leg is rotatably connected to the first chair leg so as to pivot relative to the first chair leg between an extended position and a retracted position; as well as Seat structure, including seat plate and auxiliary rod; The seat plate includes a first end and a second end, and the auxiliary rod includes a third end and a fourth end; The first end of the seat plate is rotatably connected to the first chair leg frame, the second end of the seat plate is rotatably connected to the third end of the auxiliary rod, and the fourth end of the auxiliary rod is slidably connected to the second chair leg frame.

2. The folding chair as described in claim 1, characterized in that, The second chair leg frame includes a slide groove that extends along the length of the second chair leg frame; a slider is slidably connected to the slide groove; and the fourth end of the auxiliary rod is rotatably connected to the slider.

3. The folding chair as described in claim 1, characterized in that, The second chair leg frame includes a slide rail that extends along the length of the second chair leg frame; a slider is fitted onto the slide rail and is slidably connected to the slide rail; the fourth end of the auxiliary rod is rotatably connected to the slider.

4. The folding chair as described in any one of claims 2-3, characterized in that, The second chair leg frame also includes: An upper limit surface restricts the slider to its furthest upward sliding position; wherein, in the unfolded state, the slider abuts against the upper limit surface; and The lower limit surface restricts the slider to slide down to its furthest position; wherein, in the retracted state, the slider abuts against the lower limit surface.

5. The folding chair as described in any one of claims 1-3, characterized in that, In the unfolded state: the seat plate is in a horizontal position.

6. The folding chair as described in any one of claims 1-3, characterized in that, During the pivoting of the second chair leg relative to the first chair leg, the angle (β) between the extension direction of the auxiliary rod and the length direction of the second chair leg is no greater than 60°.

7. The folding chair as described in any one of claims 1-3, characterized in that: The first chair leg frame and the second chair leg frame are rotatably connected by a rotating joint.

8. The folding chair as described in claim 7, characterized in that: One of the first chair leg frame and the second chair leg frame is L-shaped, and the other is straight.

9. The folding chair as described in claim 7, characterized in that, Also includes: A locking element, installed on the second or first chair leg, locks the rotating joint in the unfolded state and / or the retracted state.

10. The folding chair as described in claim 7, characterized in that: In the folded position, the main body of the first chair leg is parallel to the second chair leg.

11. The folding chair as described in any one of claims 1-3, characterized in that: The first chair leg frame includes a first chair leg and a second chair leg, the first chair leg and the second chair leg being arranged parallel to each other in the left-right direction; and The second chair leg frame includes a third chair leg and a fourth chair leg, which are arranged parallel to each other in the left-right direction.

12. The folding chair as described in claim 1, characterized in that, Also includes: The removable protective part is detachably connected to the base plate.

13. The folding chair as described in claim 1, characterized in that, Also includes: The foot pedal is rotatably connected to the first chair leg frame.

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