CN218852269U - Folding chair and linkage folding chair frame thereof - Google Patents

Abstract

The utility model relates to a folding chair and folding chair frame of linkage thereof, two back poles, two that the chair frame set up including the symmetry respectively with two seat poles of two back pole articulated and articulated respectively set up in two foot rest poles of two seat poles, its characterized in that, folding chair frame is still including the connecting rod that the symmetry set up, the first end of connecting rod is articulated rather than the back pole that corresponds, and the second end is articulated rather than the foot rest pole that corresponds. Among the above-mentioned technical scheme, to the inconvenient nature that the bracket pole furled in among the current folding chair. Through set up the connecting rod between back pole and bracket pole, consequently can drive at back pole pivoted in-process and put the motion of foot pole to the linkage realizes putting the quick folding and the opening of foot pole, the user operation of being convenient for.

Description

Folding chair and linkage folding chair frame thereof

Technical Field

The utility model relates to an outdoor articles for use technical field especially relates to a folding chair and linkage folding chair frame thereof.

Background

The bundle type folding chair is popular in the market due to novel structure, small packaging volume and good use experience.

The leg rest bar of prior art bundle folding chairs is typically connected to a seat bar and an armrest.

In the folding process of the folding chair, the leg rest rod is not driven by other parts to fold and can only be pressed by hand, so that the folding chair has the factors of inconvenience and incomplete folding.

Disclosure of Invention

In order to solve the above problems, a first object of the present invention is to provide a linked folding chair frame, which comprises a connecting rod disposed between a lower end of a back rod and a leg rest rod, so that the leg rest rod can be folded along with the chair frame, and the leg rest rod can be folded in a linked manner, thereby achieving a more compact appearance and a high novelty.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the chair frame including the symmetry set up two back poles, two respectively with two seat poles of two back pole articulated and articulated respectively set up in two of two seat poles put the foot pole, its characterized in that, folding chair frame is still including the connecting rod that the symmetry set up, the first end of connecting rod is articulated rather than the back pole that corresponds, and the second end is articulated rather than the bracket pole that corresponds.

Among the above-mentioned technical scheme, to the inconvenient nature that the bracket pole furled in among the current folding chair. Through set up the connecting rod between back pole and bracket pole, consequently can drive at back pole pivoted in-process and put the motion of foot pole to the linkage realizes putting the quick folding and the opening of foot pole, the user operation of being convenient for.

Preferably, when the backrest rod rotates away from or towards the seat rod, the connecting rod and the seat rod are linked to open or close. In the technical scheme, the seat rod is hinged with the leg rest rod, so that in the folding or unfolding process of the chair frame, the back rest rod is far away from or rotates towards the seat rod to drive the connecting rod to lift forwards or backwards, and then the leg rest rod is driven to be far away from or close to the seat rod around the hinged end of the seat rod.

Preferably, the seat bar is hinged to the back bar through a hinge point, the back bar extends downward from the hinge point to form an extension, and the link is hinged to the extension so that the link is substantially parallel to the seat bar when in the unfolded state. Among this technical scheme, this extension section is towards putting the foot pole and folding a little, and bracket pole, extension section, connecting rod and seat pole enclose to close and form an approximately mobilizable parallelogram structure, and stable in structure and linkage nature are good, and the connecting rod is approximately parallel with the seat pole when being in the expansion state, then when drawing in, the connecting rod more tends to be close to the seat pole, then drives and puts the foot pole and more closes to the seat pole.

Preferably, the chair also comprises two groups of handrail components which are respectively connected with the backrest rods on the two sides; the armrest assembly comprises an armrest and an armrest support; the rear end of the armrest is hinged with the backrest rod; the inner side of the handrail is provided with a guide rail, the upper end of the handrail support is sleeved on the guide rail and can slide relative to the guide rail, and the side wall of the handrail support is provided with an adjusting wrench used for unlocking/locking the handrail support relative to the guide rail. In the technical scheme, the handrail can be turned and folded relative to the backrest rod, and in the turning process, the adjusting wrench unlocks to adjust the rotation length of the handrail to be matched with the backrest rod.

Preferably, the handrail device further comprises two groups of foot rod components which are respectively connected with the two groups of handrail components, wherein each foot rod component comprises a front foot rod and a rear foot rod; the front foot rod and the rear foot rod are respectively hinged on the handrail support, and the front foot rod and the seat rod are hinged. In the technical scheme, the front leg rod and the rear leg rod are respectively hinged on the handrail support, so that the front leg rod and the rear leg rod can be folded together in a folded state. The front foot rod is hinged with the seat rod, so that the front foot rod can be stabilized when the chair frame is in an unfolded state; when the chair frame is in a folded state, the front foot rod tends to be attached to the seat rod.

Preferably, a leg rest rotating piece is arranged between the seat rod and the leg rest rod. Among this technical scheme, the stability of putting the foot pole can be guaranteed to the setting of bracket rotating member when folding chair expandes the use, and when folding chair draws in, makes the bracket pole more tend to be close to the seatpost.

Preferably, a leg rest support rod is arranged between the tail ends of the two leg rest rods, and two sides of the leg rest support rod are connected with the leg rest rods through leg rest connectors; a foot-rest handle is sleeved on the foot-rest stay bar; the bracket support rod comprises a left bracket support rod and a right bracket support rod, and the right end of the left bracket support rod and the left end of the right bracket support rod are hinged with the bracket lifting handle. In the technical scheme, the footrest handle is an unlocking point of the chair frame, when the footrest handle is lifted upwards, the left footrest stay bar and the right footrest stay bar of the footrest stay bar are folded and folded, and at the moment, force is applied to the direction that the backrest bar and the seat bar are closed together, so that the chair frame can be further folded. It should be noted here that, a lifting ring convenient to lift is arranged at the upper end of the leg rest handle, so that a user can conveniently grasp the handle.

Preferably, the front cross rod is hinged to the seat rod on one side, and the other end of the front cross rod is hinged to the lower end of the front foot rod on the other side. Among this technical scheme, the setting of preceding crossbar when the chair frame expandes, can further stabilize preceding foot pole and seat pole, when the chair frame draws in, can make preceding crossbar more tend to laminating preceding foot pole and seat pole.

Preferably, the folding chair further comprises a rear cross rod assembly arranged between the two backrest rods; the back cross rod assembly is of a cross connecting rod structure and comprises a first back cross rod, a second back cross rod, a third back cross rod and a fourth back cross rod, wherein one end of the first back cross rod, one end of the second back cross rod, one end of the third back cross rod and one end of the fourth back cross rod are hinged with the backrest rod; and a rear cross splicing piece is arranged between the second rear cross rod and the fourth rear cross rod, and the rear cross splicing piece is provided with two pieces which are hinged and distributed on two sides of the first rear cross rod. In the technical scheme, in the folding process of the chair frame, the first rear cross rod, the second rear cross rod, the third rear cross rod and the fourth rear cross rod are close to and attached to the backrest rod. The arrangement of the rear cross connecting piece can ensure that the first rear cross rod and the second rear cross rod are rotatably connected in the same plane, reduce the volume and prevent the front and the rear of the first rear cross rod from being separated.

Preferably, the rear cross bar assembly further comprises a rear cross brace bar connected between the first rear cross bar and the second rear cross bar; a rear cross lifting handle is sleeved on the rear cross stay bar; the rear cross brace includes: the left end of the left cross brace is hinged with the first rear cross brace, and the right end of the left cross brace is hinged with the second rear cross brace; the right end of the left cross brace rod and the left end of the right cross brace rod are hinged with the rear cross handle. In the technical scheme, the rear cross lifting handle is an unlocking point at the other position of the chair frame, when the rear cross supporting rod is lifted upwards, the left cross supporting rod and the right cross supporting rod are folded and folded, and simultaneously the first rear cross rod and the second rear cross rod are driven to rotate and close each other, at the moment, force is applied in the direction that the backrest rod and the seat rod are closed, and the chair frame can be further folded. It should be noted here that the lower edge of the back cross handle is wavy, so that the user can grip and apply force conveniently, and the front and back side walls are provided with a plurality of stripes, so that the friction force with the hand of the user can be increased, and the user can further grip conveniently.

A folding chair comprises the linkage folding chair frame and a soft surface covering the chair frame.

Drawings

Fig. 1 is a schematic perspective view of a linkage folding chair frame.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a top view of fig. 1.

Fig. 5 is a drawing-in schematic view of the linkage folding chair frame.

Fig. 6 is a side view of fig. 5.

Fig. 7 is a fully-folded view of the linked folding chair frame.

Fig. 8 is a front view of fig. 7.

Fig. 9 is a schematic diagram of the arrangement of the soft surface on the linkage folding chair frame.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

a linkage folding chair frame as shown in fig. 1-8, the chair frame includes two back bars 1 that the symmetry set up, two seat bars 2 that respectively with two back bars 1 are articulated and set up in two foot rest bars 3 of two seat bars 2 are articulated respectively, folding chair frame still includes the connecting rod 4 that the symmetry set up, the first end of connecting rod 4 is articulated rather than the back bar 1 that corresponds, and the second end is articulated rather than the foot rest bar 3 that corresponds.

Among the above-mentioned technical scheme, to the inconvenient nature that the bracket pole 3 was drawn in among the current folding chair. Through set up connecting rod 4 between back pole 1 and bracket pole 3, consequently can drive the motion of bracket pole 3 at back pole 1 pivoted in-process to the linkage realizes the quick folding and the opening of bracket pole 3, the user operation of being convenient for.

Further, when the backrest rod 1 rotates away from or towards the seat rod 2, the connecting rod 4 and the seat rod 2 are linked to open or close. In the technical scheme, the seat rod 2 is hinged with the leg rest rod 3, so that in the process of folding or unfolding the chair frame, the back rest rod 1 is far away from or rotates towards the seat rod 2 to drive the connecting rod 4 to lift forwards or backwards, and then the leg rest rod 3 is driven to be far away from or close to the seat rod 2 around the hinged end of the seat rod 2.

Further, the seat post 2 is hinged to the back post 1 through a hinge point, the back post 1 extends downward from the hinge point to form an extension 5, and the link 4 is hinged to the extension 5 so that the link 4 can be substantially parallel to the seat post 2 in the unfolded state. Among this technical scheme, this extension section 5 is towards putting foot pole 3 and folding a little, and puts foot pole 3, extension section 5, connecting rod 4 and seat pole 2 and enclose to close and form an approximately mobilizable parallelogram structure, and stable in structure and linkage are good, and connecting rod 4 is approximately parallel with seat pole 2 when being in the expansion state, then when drawing in, connecting rod 4 more tends to be close to seat pole 2, then drives and puts foot pole 3 and more close to seat pole 2.

Furthermore, the chair frame also comprises two groups of handrail components which are respectively connected with the backrest rods 1 at the two sides; the armrest assembly comprises an armrest 6 and an armrest support 7; the rear end of the armrest 6 is hinged with the backrest rod 1; the inner side of the handrail 6 is provided with a guide rail, the upper end of the handrail support 7 is sleeved on the guide rail and can slide relative to the guide rail, and the side wall of the handrail support 7 is provided with an adjusting wrench 8 for unlocking/locking the handrail support 7 relative to the guide rail. In the technical scheme, the handrail 6 can be turned and folded relative to the backrest rod 1, and in the turning process, the adjusting wrench 8 is unlocked to adjust the rotation length of the handrail 6 to be matched with the backrest rod 1.

Furthermore, the chair frame also comprises two groups of foot rod components which are respectively connected with the two groups of handrail components, and the foot rod components comprise a front foot rod 9 and a rear foot rod 10; the front foot rod 9 and the rear foot rod 10 are respectively hinged on the handrail support 7, and the front foot rod 9 is hinged with the seat rod 2. In the technical scheme, the front foot rod 9 and the rear foot rod 10 are respectively hinged on the handrail support 7, so that the front foot rod 9 and the rear foot rod 10 can be closed in a folded state. The front foot rod 9 is hinged with the seat rod 2, so that the front foot rod 9 can be stabilized when the chair frame is in an unfolded state; when the chair frame is folded, the front foot rod 9 tends to be attached to the seat post 2.

Furthermore, a footrest rotating piece 11 is arranged between the seat rod 2 and the footrest rod 3. Among this technical scheme, the setting of bracket rotating member 11 can guarantee the stability of bracket pole 3 when the folding chair expandes the use, and when the folding chair draws in, makes bracket pole 3 more tend to be close to seat pole 2.

Furthermore, a leg rest stay bar 12 is arranged between the tail ends of the two leg rest bars 3, and both sides of the leg rest stay bar 12 are connected with the leg rest bars 3 through leg rest adapters 13; a foot-rest handle 14 is sleeved on the foot-rest stay bar 12; the leg rest vaulting pole 12 includes left leg rest vaulting pole and right leg rest vaulting pole, and the right-hand member of left leg rest vaulting pole and the left end of right leg rest vaulting pole form articulatedly with leg rest handle 14. In the technical scheme, the leg rest handle 14 is an unlocking point of the chair frame, when the leg rest handle 14 is lifted upwards, the left leg rest stay bar and the right leg rest stay bar of the leg rest stay bar 12 are folded and folded, and at the moment, force is applied in the direction that the back rest bar 1 and the seat bar 2 are closed, so that the chair frame can be further folded. It should be noted here that, a lifting ring convenient to lift is arranged at the upper end of the leg rest handle 14, so as to be convenient for a user to grasp.

Furthermore, the chair frame also comprises two front cross rods 15 which are hinged with each other in a cross way, one end of each front cross rod 15 is hinged on the seat rod 2 at one side, and the other end of each front cross rod 15 is hinged with the lower end of the front foot rod 9 at the other side. In the technical scheme, the front cross rod 15 is arranged, when the chair frame is unfolded, the front foot rod 9 and the seat rod 2 can be further stabilized, and when the chair frame is folded, the front cross rod 15 can be more close to the front foot rod 9 and the seat rod 2.

Furthermore, the chair frame also comprises a rear cross rod component arranged between the two backrest rods 1; the rear cross rod assembly is of a cross connecting rod structure and comprises a first rear cross rod 16, a second rear cross rod 17, a third rear cross rod 18 and a fourth rear cross rod 19, wherein one end of the first rear cross rod is hinged with the backrest rod 1; a rear cross connecting piece 20 is arranged between the second rear cross rod 17 and the fourth rear cross rod 19, and the rear cross connecting piece 20 is provided with two pieces which are hinged and distributed at two sides of the first rear cross rod 16. In the technical scheme, in the folding process of the chair frame, the first rear cross rod 16, the second rear cross rod 17, the third rear cross rod 18 and the fourth rear cross rod 19 are close to the backrest rod 1. The provision of the rear cross tab 20 ensures that the first rear cross bar 16 and the second rear cross bar 17 are pivotally connected in the same plane, reduces bulk and prevents the first rear cross bar 16 from disengaging back and forth.

Further, the rear cross bar assembly also includes a rear cross brace 21 connectively disposed between the first rear cross bar 16 and the second rear cross bar 17; a rear cross handle 22 is sleeved on the rear cross stay bar 21; the rear cross stay 21 includes: a left cross brace with the left end hinged with the first back cross bar 16 and a right cross brace with the right end hinged with the second back cross bar 17; the right end of the left cross brace rod and the left end of the right cross brace rod are hinged with the rear cross handle 22. In the technical scheme, the rear cross handle 22 is an unlocking point at the other position of the chair frame, when the rear cross brace 21 is lifted upwards, the left cross brace and the right cross brace are folded and folded, and simultaneously the first rear cross brace 16 and the second rear cross brace 17 are driven to rotate and close each other, at the moment, force is applied in the direction that the backrest pole 1 and the seat pole 2 are closed, and the chair frame can be further folded. It should be noted here that the lower edge of the back cross handle 22 is wavy, so as to facilitate grasping and force application by the user, and the front and back side walls are provided with a plurality of stripes, so as to increase the friction force with the hand of the user, thereby facilitating grasping by the user.

It should be further noted that 100 is a tab and 200 is a U-shaped piece in fig. 1 for connecting the components to facilitate the rotation thereof.

It should be noted that the chair frame is locked after being unfolded, and the locking manner can be that a connecting piece is arranged between each backrest rod 1 on two sides and the corresponding rear foot rod 10, so that the backrest rods 1 and the rear foot rods 10 can be unfolded at a certain angle and can be kept stable.

In this embodiment, the folding step of the chair frame is as follows:

1. and lifting the rear crossed support rod and the leg rest support rod to unlock, so that the chair is in an unlocked state.

2. Two hands respectively apply force to the upper end of the backrest assembly and the front end of the seat assembly in the direction that the backrest rod 1 and the seat rod 9 are closed.

3. The folding of the back support rod 1 and the seat rod 9 drives the pivot seat to turn, so that the back support rod 1 is attached to the rear foot rod, and the front foot rod and the rear foot rod are also folded.

4. The lower end of the backrest rod 1 draws the foot rest rod towards the seat rod through the connecting rod.

5. The included angle between the front leg rod and the seat rod is enlarged, so that the front cross rod is closed. The rear cross assembly is in an unlocked state.

The above steps can make the chair frame be collected into a bundle state.

Example two:

a folding chair as shown in fig. 9 comprises a linked folding chair frame and a soft surface covering the chair frame according to the embodiment.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (11)

1. The utility model provides a folding chair frame of linkage, the chair frame including two back poles (1), two that the symmetry set up respectively with two back poles (1) articulated seat poles (2) and articulated respectively set up in two of two seat poles (2) put foot pole (3), its characterized in that, folding chair frame is still including connecting rod (4) that the symmetry set up, the first end of connecting rod (4) is articulated rather than back pole (1) that corresponds, and the second end is articulated rather than foot rest pole (3) that correspond.

2. A linked folding chair frame according to claim 1, characterized in that when the back rest lever (1) is rotated away from or towards the seat lever (2), the connecting rod (4) and the seat lever (2) are linked to open or close.

3. A linked folding chair frame according to claim 2, characterised in that the seat post (2) is hinged to the back post (1) via a hinge point, from which the back post (1) extends downwards to form an extension (5), and that the connecting rod (4) is hinged to the extension (5) so that the connecting rod (4) can be arranged substantially parallel to the seat post (2) in the unfolded position.

4. A linked folding chair frame according to claim 3, characterised in that: the handrail component is respectively connected with the backrest rods (1) at two sides; the armrest assembly comprises an armrest (6) and an armrest support (7); the rear end of the armrest (6) is hinged with the backrest rod (1); the inner side of the handrail (6) is provided with a guide rail, the upper end of the handrail support (7) is sleeved on the guide rail and can slide relative to the guide rail, and the side wall of the handrail support (7) is provided with an adjusting wrench (8) used for unlocking/locking the handrail support (7) relative to the guide rail.

5. A linked folding chair frame according to claim 4, characterised in that: the handrail device also comprises two groups of foot rod components which are respectively connected with the two groups of handrail components, wherein each foot rod component comprises a front foot rod (9) and a rear foot rod (10); the front foot rod (9) and the rear foot rod (10) are respectively hinged on the handrail support (7), and the front foot rod (9) is hinged with the seat rod (2).

6. A linked folding chair frame according to claim 1, characterised in that: a leg rest rotating part (11) is arranged between the seat rod (2) and the leg rest rod (3).

7. A linked folding chair frame according to claim 6, characterised in that: a leg rest support rod (12) is arranged between the tail ends of the two leg rest rods (3), and two sides of the leg rest support rod (12) are connected with the leg rest rods (3) through leg rest adapters (13); a foot-rest handle (14) is sleeved on the foot-rest stay bar (12); the leg rest support rod (12) comprises a left leg rest support rod and a right leg rest support rod, and the right end of the left leg rest support rod and the left end of the right leg rest support rod are hinged to a leg rest handle (14).

8. A linked folding chair frame according to claim 6, characterised in that: the folding seat is characterized by further comprising two front cross rods (15) which are hinged in a mutually crossed mode, one end of each front cross rod (15) is hinged to the seat rod (2) on one side, and the other end of each front cross rod is hinged to the lower end of the front foot rod (9) on the other side.

9. A linked folding chair frame according to claim 1, characterised in that: the back cross rod assembly is arranged between the two back rest rods (1); the rear cross rod assembly is of a cross connecting rod structure and comprises a first rear cross rod (16), a second rear cross rod (17), a third rear cross rod (18) and a fourth rear cross rod (19), wherein one end of the first rear cross rod, one end of the second rear cross rod, one end of the third rear cross rod and one end of the fourth rear cross rod are hinged with the backrest rod (1); a rear cross connecting piece (20) is arranged between the second rear cross rod (17) and the fourth rear cross rod (19), and two rear cross connecting pieces (20) are hinged and distributed on two sides of the first rear cross rod (16).

10. A linked folding chair frame according to claim 9, characterised in that: the rear cross bar assembly further comprises a rear cross brace (21) connected between the first rear cross bar (16) and the second rear cross bar (17); a rear cross lifting handle (22) is sleeved on the rear cross support rod (21); the rear cross brace (21) includes: the left end of the left cross brace is hinged with the first rear cross bar (16), and the right end of the left cross brace is hinged with the second rear cross bar (17); the right end of the left cross brace rod and the left end of the right cross brace rod are hinged with the rear cross handle (22).

11. A folding chair is characterized in that: comprises a linkage folding chair frame as claimed in any one of claims 1 to 10 and a soft surface covering the chair frame.

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