KR20230076440A - Foldable Chair - Google Patents

Abstract

The foldable chair comprises: a backrest rod (221) hinged to a seat unit (21); a leg unit (3); an armrest unit (5); a first folding rod unit (6); and a connecting rod unit (9). Each leg unit (3) includes: a sleeve member (34) connected to the seat unit (21) and sleeved on a rear leg rod (32) connected to the seat unit (21) to be able to slide. Each armrest unit (5) is connected to one of the leg units (3) and one of the backrest rods (221). The first folding rod unit (6) is connected between the backrest rods (221) to move the backrest rods (221). The connecting rod unit (9) includes: one end connected to the first folding rod unit (6); and the other end pivotally connected to one of the backrest arm units (5) or one of the sleeve members (34) of the leg units (3).

Description

Foldable Chair {Foldable Chair}

The present disclosure relates to chairs, and more specifically to folding chairs.

1 to 3 show a foldable chair disclosed in Taiwan Patent Publication No. 1522071. The folding chair is paired with a cloth material (11), and includes a seat unit (12), a backrest unit (13), two leg units (14), two armrest units (15), and a first folding rod unit. (16), the second folding rod unit 17, and the pulling rod unit 18.

The seat unit 12 includes two seat rods 121 spaced apart from each other in the left-right direction and extending in the front-rear direction.

A backrest unit 13 is disposed above the seat unit 12 and is pivotally connected thereto, and includes two backrest rods spaced apart from each other in the left and right directions and extending in the vertical direction. (131).

Each leg unit 14 has a front leg 141 pivotally connected to one of the seat rods 121, a rear end having a top end pivotally connected to the front leg 141. It includes a rear leg 122, and a sleeve member 143 slidably sleeved to the rear leg 141 and pivotally connected to one of the seat rods 121. The front and rear legs 141 and 142 cooperate with each other to form an inverted V shape to support one of the armrest units 15 .

Each of the first and second folding rod units 16 and 17 includes a hinge seat 191 and two connection rods 192. The hinge sheet 191 is disposed between the backrest rods 131. Each connection rod 192 is pivotally connected between the hinge seat 191 and one of the backrest rods 131.

A pull rod unit 18 is pivotally connected between the hinge seats 191 of the first and second folding rod units 16 and 17, so that the first and second folding rod units 16, It is movable together with the hinge seat 191 and the connection rod 192 of 17).

As shown in Figures 2-4, the folding chair can be manipulated between an unfolded state (see Figs. 2 and 3) and a folded state (see Fig. 4).

Since, in the unfolded state, the connection rods 192 of the first and second folding rod units 16 and 17 are aligned with their respective left and right pivot points along the same line, the first and second folding rod units (16, 17) are at the dead point position, and can stably support the entire structure of the backrest unit 13 and the folding chair. When the pulling rod unit 18 is pulled upward, the hinge seats 191 of the first and second folding rod units 16 and 17 move upward together with the pulling rod unit 18, and the first and second By moving the connection rods 192 of each of the folding rod units 16 and 17 closer to each other, dead spots disappear and the folding chair is operated from the unfolded state to the folded state.

However, it is inconvenient for the user to move backward to operate the pulling rod unit 18 behind the folding chair in order to move the folding chair between the unfolded state and the folded state.

Accordingly, an object of the present disclosure is to provide a folding chair that can alleviate the disadvantages of the prior art.

According to the present disclosure, a folding chair includes a seat unit, a backrest unit, two leg units, two armrest units, a first folding rod unit, and one or more linking rod units.

The backrest unit includes two backrest rods spaced apart from each other in the left and right directions and disposed above the seat unit and hinged thereto.

The leg units are spaced apart from each other in the left and right directions. Each leg unit has a front leg rod pivotally connected to the seat unit, a rear leg rod pivotally connected to the front leg rod, and a pivotally connected to the seat unit and slidable on the rear leg rod. It includes a sleeve member that is sleeved and sleeved.

Each armrest unit is pivotally connected to one of the leg units and one of the backrest rods.

The first folding rod unit is pivotally connected between the backrest rods and can be folded or unfolded by moving the backrest rods toward or away from each other.

The at least one connecting rod unit includes one end pivotally connected to the first folding rod unit and the other end pivotally connected to one of the sleeve members of the backrest arm unit and the leg unit.

Other features and advantages of the present disclosure will become more apparent from the following detailed description of embodiments, taken in conjunction with the accompanying drawings.
1 is a perspective view showing a conventional folding chair.
2 is a perspective view of a conventional folding chair seen from another angle.
3 is a rear view of a conventional folding chair in an unfolded state.
4 is a rear view of a conventional folding chair in a folded state.
5 is a perspective view showing a folding chair according to a first embodiment of the present disclosure in an unfolded state.
6 is another perspective view of the first embodiment from another angle, in an unfolded state.
7 is a side view of the first embodiment showing the folding chair in an unfolded state.
8 is a rear view of the first embodiment showing the folding chair in an unfolded state.
9 is a side view of the first embodiment showing the folding chair in a folded state.
10 is a rear view of the first embodiment showing the folding chair in a folded state.
11 is a rear view showing a folding chair according to a second embodiment of the present disclosure in an unfolded state.
12 is a rear view of a second embodiment showing the folding chair in a folded state.
13 is a rear view showing a foldable chair according to a third embodiment of the present disclosure in an unfolded state.
14 is a rear view of a third embodiment showing the folding chair in a folded state.
15 is a rear view showing a foldable chair according to a fourth embodiment of the present disclosure in an unfolded state.
16 is a rear view of a fourth embodiment showing the foldable chair in a folded state.
17 is a rear view showing a foldable chair according to a fifth embodiment of the present disclosure in an unfolded state.
18 is a rear view of a fifth embodiment showing the foldable chair in a folded state.
19 is a rear view showing a foldable chair according to a sixth embodiment of the present disclosure in an unfolded state.
20 is a rear view showing a foldable chair according to a seventh embodiment of the present disclosure in an unfolded state.

Before describing the present disclosure in more detail, it should be noted that reference numbers or endings of reference numbers have been repeated between the drawings to refer to corresponding or like elements, which may optionally have similar properties, where deemed appropriate.

5 to 7 show a folding chair according to a first embodiment of the present disclosure equipped with a chair cloth.

The folding chair includes a seat unit (21), a backrest unit (22), two leg units (3), a scissor linkage unit (4), two armrest units (5), and a first folding rod unit. (6), a second folding rod unit (7), a third rod unit (8) and two connecting rod units (9).

The seat unit 21 includes two seat rods 211 spaced apart from each other in the left-right direction. Each seat rod 211 extends in the front-rear direction.

The backrest unit 22 includes two backrest rods 221 spaced apart from each other in the left and right directions and disposed above the seat unit 21 . The backrest rods 221 are each hinged to the rear end of the seat rod 211 .

The two leg units 3 are spaced apart from each other in the left-right direction in such a way that the seat unit 21 is disposed between the leg units 3 . Each leg unit 3 includes a front leg rod 31, a rear leg rod 32, a pivot pin 33 and a sleeve member 34. The front leg rod 31 is pivotally connected at the midpoint of the respective one of the seat rods 211. The upper ends of the front and rear leg rods 31 and 32 are placed above the respective seat rods 211, and the pivot pin 33 allows the front and rear leg rods 31 and 32 to be oriented in an inverted V shape. ) through which they are pivotally connected to each other.

The sleeve member 34 is pivotally connected to the respective seat rod 211 at a certain distance from the midpoint of the respective seat rod 211, and is slidably sleeved on the rear leg rod 32. In this specific embodiment, the sleeve member 34 is a sleeve portion 341 slidably sleeved to the rear leg rod 32, and integrally protruding from the sleeve portion 341 and a respective seat rod ( 211) with a protrusion portion 342 pivotally connected (see FIG. 6).

The scissor linkage unit 4 is pivotally connected to the front end of the seat unit 21 and the bottom end of the leg unit 3 . The scissor linkage unit 4 includes two scissor legs 41 that are pivotally connected to each other. Each scissor leg 41 has its upper end pivotally connected to one of the seat rods 211 and its lower end pivotally connected to the lower end of the front leg rod 31 pivotally connected to the other one of the seat rods 211. do.

Each armrest unit 5 is pivotally connected to one of the leg units 3 and one of the backrest rods 211, and extends downwardly from the armrest member 51 and the armrest member 51. It includes a mounting portion (mounting portion) 52 to be. The armrest member 51 has a bifurcated rear end 510 to define a notch 511 for receiving one of the connecting rod units 9 . A part of the armrest member 51 in front of the rear end 510 is pivoted on a corresponding backrest rod 221. The mounting portion 52 includes a slide passage 520 for extending the pivot pin 33 of one of the leg units 3, and a plurality of positioning grooves communicating with the slide passage 520. groove) 521. The pivot pin 33 is slidable along the slide passage 520 and can be adjustably inserted into one of the positioning grooves 521 .

6 to 8, the first foldable rod unit 6 is pivotally connected between the backrest rods 221 and can be folded or unfolded by moving the backrest rods 221 toward or away from each other. . The first folding rod unit 6 includes a first hinge seat 61 and two first rods 62 .

The first hinge sheet 61 is disposed between the backrest rods 221. Each first rod 62 connects between the first hinge sheet 61 and one of the backrest rods 221 . In this embodiment, each first rod 62 has a first end portion 621, a second end portion 622 opposite the first end portion 621, and the first and second portions 622. An intermediate portion 623 connecting the two ends 621 and 622 is provided.

A first end 621 of each first rod 62 is pivotally connected to a first hinge seat 61 . The middle part 623 of each first rod 62 is pivotally connected to one of the backrest rods 221 . The second end 622 of each first rod 62 protrudes outward from the respective backrest rod 221 to which the intermediate rod portion 623 is pivotally connected. As shown in FIG. 8 , the second ends 622 of the first rods 62 protrude from the backrest rods 221 in the left and right directions, respectively.

The second folding rod unit 7 is disposed below the first folding rod unit 6 . The second folding rod unit 7 includes a second hinge sheet 71 , two third hinge sheets 73 and two second rods 72 .

The second hinge sheet 71 is disposed between the backrest rods 221.

Each third hinge seat 73 has an engaging portion 731 that can be engaged and hooked onto one of the backrest rods 221 (Figs. 6 and 8 reference).

Each second rod 72 has one end pivotally connected to the second hinge sheet 71 and the other end pivotally connected indirectly to one of the backrest rods 221 through a third hinge sheet 73. have As shown in Fig. 8, each second rod 72 and each third hinge seat 73 are pivotally connected to each other by a pivot pin 80; Each third hinge seat 73, each second rod 72 and each backrest rod 221 are pivotally connected to each other by a pivot pin 81. The stability of the backrest rod 221 can be increased by the third hinge sheet 73 . However, in other embodiments, the third hinge sheet 73 may be omitted and each second rod 72 is pivotally connected directly to one of the backrest rods 221 .

The third rod unit 8 extends in the vertical direction and is pivotally connected between the first and second hinge sheets 61 and 71 . The third rod unit 8 brings the first and second hinge sheets 61 and 71 together and moves the first and second rods 62 and 72 simultaneously.

Each linking rod unit 9 includes a linking rod 91 . The connecting rod 91 has one end pivotally connected to the second end 622 of one of the first rods 62, and the other end is connected to the armrest member 51 of one of the armrest units 5. It is pivotally connected to the rear end 510 of. Specifically, the other end of the connecting rod 91 is inserted into the notch 511 of the rear end 510 of the armrest member 51 so as to be pivoted to the rear end 510 .

The folding chair of the present disclosure is operable between an unfolded state (see FIGS. 7 and 8 ) and a folded state (see FIGS. 9 and 10 ).

6 to 8, in the unfolded state, the front ends of the armrest members 51 each extend forward away from the backrest rods 221, and the backrest rods 221 move away from each other And, the first rod 62 and the second rod 72 are unfolded, and the lower end of the backrest rod 221 is each fastened to the fastening part 731 of the third hinge sheet 73, thereby firmly maintained.

To operate the folding chair from the unfolded state to the folded state, the user stands in front of the folding chair, lifts the armrest units 5 and moves them toward each other, and moves the front leg rods 31 of the leg units 3 toward each other. can be moved to

When the armrest units 5 are lifted and moved towards each other, the connecting rods 91 of the connecting rod units 9 are moved towards each other by the armrest units 5, and the connecting rod units 9 With the second ends 622 of the first rods 62 moving downwards and towards each other, the first hinge seat 61 moves upwards. The second hinge sheet 71 and the third rod unit 8 move upward together with the first hinge sheet 61 so that the second rods 72 move against each other. The third hinge sheet 73 is moved by the second rod 72 so that the backrest rod 221 is released from the fastening portion 731 of the third hinge sheet 73 and attaches to the backrest rod 221. rotate about As the front leg rods 31 of the leg units 3 are pressed by the user's feet and move toward each other, the scissor legs 41 are folded and the seat rods 211 move toward each other.

9 and 10, in the folded state, the armrest unit 5 and the backrest rod 211 are inclined with respect to the vertical direction; The first rod 62 is oriented in an inverted V shape; The second rod 72 is oriented in an inverted V shape; The backrest rod 221 is released from the fastening portion 731 of the third hinge sheet 73.

To manipulate the folding chair from the folded state to the unfolded state, the user can press the armrest units 5 down and move them away from each other. The movement of the armrest unit 5 will cause the leg unit 3, the connecting rod 91, and the first and second folding rod units 6, 7 to move simultaneously. In the unfolded state, the folding chair is fully unfolded so that the user can sit on it.

The characteristics of the folding chair of the present disclosure are as follows. To operate the folding chair, the user does not have to move to the back of the folding chair. Rather, the user can simply stand in front of the chair and manipulate the armrest unit 5 and the front leg rod 31 of the leg unit 3 to fold or unfold the folding chair.

11 and 12 show a folding chair according to a second embodiment of the present disclosure, having a structure generally similar to that of the first embodiment. However, in this embodiment, the second end 622 of each first rod 62 is pivotally connected to one of the backrest rods 221 . The connecting rod 91 of each connecting rod unit 9 is pivotally connected between the rear end of one of the armrest units 5 and the middle part 623 of one of the first rods 62 . The accommodation recess 511 of each armrest unit 5 opens not only backwards but also inwardly and towards one of the backrest rods 221, thereby preventing movement of the connecting rod unit 9. facilitate The position of the third hinge sheet 73 is reversed. In the folded state, the first rod 62 is oriented in a V-shape; The second rod 72 is oriented in a V shape.

13 and 14 show a folding chair according to a third embodiment of the present disclosure, having a structure generally similar to that of the first embodiment. However, in this embodiment, the connecting rod unit 9 further includes a U-shaped connector 92 and a connecting plate 93. The U-shaped connector 92 is connected to one end of the connecting rod 91 and pivotally connected with the second end 622 of one of the first rods 62 . The connecting plate 93 is connected to the other end of the connecting rod 91 and is pivotally connected to the sleeve member 34 of one of the leg units 3. Since the connecting rod unit 9 and the armrest unit 5 are not connected to each other, the receiving recess 511 (see Fig. 6) is omitted in the armrest member 51 of each armrest unit 5. there is.

Since each sleeve member 34 is slidably sleeved on a respective rear leg rod 32 and pivotally connected to a respective seat rod 211, also each connecting rod unit 9 has a respective Since it is pivotally connected between the first rod 62 and the sleeve member 34, when the armrest unit 5 is lifted, the sleeve member 34 moves and the connecting rod unit 9 moves, and the first rod 62 moves. The folding rod unit 6 is folded.

15 and 16 show a folding chair according to a fourth embodiment of the present disclosure, having a structure generally similar to that of the second embodiment. However, in this embodiment, the connecting rod 91 of each connecting rod unit 9 is connected to the intermediate portion 623 of one of the first rods 62 and the sleeve member 34 of one of the leg units 3. ) is pivotally connected between

17 and 18 show a folding chair according to a fifth embodiment of the present disclosure, having a structure generally similar to that of the first embodiment. However, in this embodiment, the first hinge sheet 61 has a different shape; the second hinge seat 71 is omitted from the second folding rod unit 7; The third rod unit 8 is omitted. Each second rod 72 has one end pivotally connected to the first hinge seat 61 . Each third hinge seat 73 is pivotally connected to one of the backrest rods 221 .

19 shows a folding chair according to a sixth embodiment of the present disclosure, having a structure generally similar to that of the first embodiment. However, in this embodiment, the second hinge seat 71 and the second rod 72 of the second folding rod unit 7 are omitted; The third rod unit 8 is omitted. The foldable chair of the present disclosure includes only one connecting rod unit 9 . One end of the connecting rod 91 is pivotally connected to a second end 622 of one of the first rods 62 located on the same side as the connecting rod 91, and the other end is connected with the connecting rod 91. It is pivotally connected to the rear end of the armrest member 51 of one of the armrest units 5 located on the same side.

20 shows a folding chair according to a seventh embodiment of the present disclosure, having a structure generally similar to that of the first embodiment. However, in this embodiment, the second folding rod unit 7 is omitted; The first folding rod unit 6 is pivotally connected between the lower ends of the backrest rods 221 . The folding chair of the present disclosure includes only one connecting rod unit 9 . One end of the connecting rod 91 is pivotally connected to a second end 622 of one of the first rods 62 located on the same side as the connecting rod 91, and the other end is connected with the connecting rod 91. It is pivotally connected to the rear end of the armrest member 51 of one of the armrest units 5 located on the same side.

In the above description, for purposes of explanation, numerous specific details have been set forth in order to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that one or more other embodiments may be practiced without some of these specific details. Further, references throughout this specification to an embodiment having the designation "one embodiment", "an embodiment", an ordinal number, or the like, are intended to mean that a particular feature, structure or characteristic may be incorporated into practice of the present disclosure. You have to understand. In the Detailed Description of the Invention, various features are sometimes grouped together in a single embodiment, drawing, or description thereof, in order to simplify the disclosure and facilitate understanding of various inventive aspects, and may include one or more features from an embodiment, or It is also to be understood that certain details may be practiced in conjunction with one or more features and specific details from other embodiments, where appropriate, in the practice of the present disclosure.

Although the present disclosure has been described with respect to what are considered exemplary embodiments, the present disclosure is not limited to the disclosed embodiments, but is intended to cover various arrangements included within the broadest spirit and scope of interpretation. and is understood to include all such variations and equivalent arrangements.

Claims (10)

seat unit;
a backrest unit spaced apart from each other in the left and right directions and including two backrest rods disposed above the seat unit and hinged thereto;
Two leg units spaced apart from each other in the left and right directions, each of which is pivotally connected to the seat unit, a front leg rod pivotally connected to the front leg rod, a rear leg rod pivotally connected to the front leg rod, and a pivotally connected to the seat unit and the rear leg rod The two leg units including a sleeve member slidably sleeved on the sleeve;
two armrest units each pivotally connected to one of the leg units and one of the backrest rods;
a first foldable rod unit pivotally connected between the backrest rods and capable of being folded or unfolded by moving the backrest rods toward or away from each other; and
one or more connecting rod units including one end pivotally connected to the first folding rod unit and the other end pivotally connected to one of the armrest units or one of the sleeve members of the leg units;
A folding chair comprising a. According to claim 1,
The at least one connecting rod unit includes two connecting rod units, each of the connecting rod units having one end pivotally connected to the first folding rod unit, and one of the armrest units or one of the leg units. A folding chair comprising the other end pivotally connected to one of the sleeve members. According to claim 2,
The first folding rod unit includes a first hinge sheet and two first rods, the first hinge sheet is disposed between the backrest rods, and each of the first rods is connected to the first hinge sheet and the first rod. connected between one of the backrest rods, wherein each of the first rods has a first end, a second end opposite the first end, and an intermediate portion connected between the first and second ends; folding chair. According to claim 3,
The first end of each of the first rods is pivotally connected to the first hinge seat, the intermediate portion of each of the first connecting rods is pivotally connected to one of the backrest rods, A second end protrudes outward from one of the backrest rods to which the intermediate rod portion is pivotally connected, and each of the connecting rod units is connected to the rear end of one of the armrest units and the second end of one of the first rods. A folding chair, which is pivotally connected between the ends. According to claim 3,
The first end of each of the first rods is pivotally connected to the first hinge seat, the second end of each of the first rods is pivotally connected to one of the backrest rods, and each of the connecting rod units is A folding chair, which is pivotally connected between the rear end of one of the armrest units and the middle part of one of the first rods. According to claim 3,
The first end of each of the first rods is pivotally connected to the first hinge seat, the intermediate portion of each of the first rods is pivotally connected to one of the backrest rods, and the first end of each of the first rods is pivotally connected. two ends protrude outward from one of the backrest rods to which the intermediate portion is pivotally connected, and each of the connecting rod units is connected to the second end of one of the first rods and the sleeve member of one of the leg units. A folding chair that is pivotally connected between them. According to claim 3,
The first end of each of the first rods is pivotally connected to the first hinge seat, the second end of each of the first rods is pivotally connected to one of the backrest rods, and each of the connecting rod units is A folding chair, which is pivotally connected between the intermediate portion of one of the first rods and the sleeve member of one of the leg units. According to claim 1,
Further comprising a second folding rod unit disposed below the first folding rod unit, the second folding rod unit comprising a second hinge seat and two second rods disposed between the backrest rods and wherein each of the second rods is pivotally connected between the second hinge sheet and one of the backrest rods. According to claim 8,
Further comprising a third rod unit pivotally connected between the first and second hinge sheets, wherein the third rod unit is movable together with the first and second hinge sheets and the first and second rods. , folding chairs. According to claim 3,
further comprising a second foldable rod unit comprising two second rods, each of the second rods being pivotally connected between the first hinge seat of the first foldable rod unit and one of the backrest rods. In, a folding chair.

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