Folding chair capable of reducing packaging height

Abstract

The utility model relates to a folding chair capable of reducing packaging height, which comprises a folding support, a seat cushion fabric and a backrest fabric, the seat cushion fabric and the backrest fabric are supported by the folding support, and backrest rods are respectively arranged on two sides of the folding support corresponding to the rear portion of a seat posture. Wherein the backrest rod comprises a body section and a folding section, the folding section is hinged to the top of the body section through a rivet, the folding section can be kept consistent with the body section in direction when opened, and the folding section can be reversely folded forwards relative to the body section; and the backrest fabric is hung on the folding section. According to the utility model, the two backrest rods of the folding chair adopt a two-section inversely foldable design, so that the use is not influenced, the height occupied by the folded backrest rods can be shortened, and the load of packaging and transportation is reduced; and on the basis, the upper end part of the backrest rod body section is designed to be inclined backwards, so that the defects of the traditional upright backrest are overcome under the condition of not increasing the packaging volume, and the backrest which is slightly inclined backwards conforms to human resting engineering, and the comfort of the back is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to daily necessities field, especially relate to a folding chair of reducing packing height, especially the scheme that can put down the top of backrest rod and reduce folding height. BACKGROUND

[0002] Folding chairs are various, and are divided according to different use scenes, such as outdoor, courtyard, office and home, especially outdoor, which requires the lightest weight and the smallest size, and most of them are folded into a bundle state, so that the occupied space is smaller, and transportation and collection are satisfied. Figure 1 CN202222899502.5 discloses a storage folding chair, which is the most original structure, and then evolves into a folding chair with a soft armrest, and a triangular folding chair of CN200820145301.3 directly removes one supporting surface to reduce weight.

[0003] How to provide a technical scheme of reducing folding packing height, which becomes the object of the present application. SUMMARY

[0004] The utility model discloses a backrest rod adopts double-sections foldable structure, and can reduce the folding chair of packing height.

[0005] The utility model discloses technical scheme is like this realization: a folding chair of reducing packing height, including folding support, seat pad fabric and backrest fabric supported by folding support, wherein folding support is provided with backrest rod on both sides corresponding to the back of seat posture respectively.

[0006] The body section of the backrest rod is circular, oval or square, and the folding section is at least hinged with the body section and is a groove-shaped structure, which is wrapped on the body section by three surfaces, and is hinged on the top of the body section by rivets.

[0007] The groove-shaped structure is symmetrically recessed with inward convex points below the rivet hinging position, and the two convex points slide through the widest part of the body section or the corresponding recessed part of the square tube when opened to the right position, forming the positioning of the opening of the folding section.

[0008] The folding section is a groove-shaped structure formed by a steel plate.

[0009] The top of the body section of the backrest rod is provided with a rear inclined section, the length of the inclined section is not more than 10 cm, and the inclined angle is between 5 and 30 degrees; the folding section hinge position is located on the inclined section.

[0010] The folding support is folded in a bundle and comprises three or four vertical faces, each vertical face is composed of two inclined rods hingedly connected at the middle, the inclined rods of each vertical face and the inclined rods of the adjacent vertical face are hingedly connected together through upper and lower hinge seats, and the seat cushion fabric is hung on the three or four upper hinge seats; the lower end of the backrest rod is hingedly connected to the lower hinge seat, the upper end of the backrest rod passes through the upper hinge seat, and the backrest fabric is hung on the folding section.

[0011] The folding support is folded in a bundle and comprises four vertical faces, the two side vertical faces comprise inclined support rods, seat cushion rods and backrest rods, the seat cushion rods are hingedly connected with the inclined support rods, the rear end of the seat cushion rod is hingedly connected to the backrest rod, the backrest rod passes through the upper hinge seat hingedly connected to the upper end of the inclined support rod, and a foldable triangular support structure is formed; the front and rear vertical faces of the folding support are associated with two inclined rods hingedly connected at the middle; the seat cushion fabric is hung between the two seat cushion rods.

[0012] The folding support further comprises a handrail rod, the rear end of the handrail rod is hingedly connected to the inclined support rod or the upper hinge seat, and the front end of the handrail rod is supported by a handrail support rod, the middle of the handrail support rod is hingedly connected to the front part of the seat cushion rod, the lower end of the handrail support rod is hingedly connected to a sliding sleeve set on the inclined support rod, and a limiting ring is locked on the inclined support rod, the limiting ring can abut against the lower edge of the sliding sleeve when the folding support is opened to the position, and the limiting ring can provide force support for the handrail support rod downward.

[0013] The utility model discloses a folding chair two backrest rods are improved, adopt double section design that can be folded, do not influence use again, can shorten the height of backrest rod occupied after folding, reduce the weight of packing and transportation, on this basis, still can utilize backrest rod body section upper end part to make rearward slant design, under the condition of not increasing the packing volume, improve the deficiency of traditional straight backrest, slightly backward inclined backrest accords with human rest ergonomics, greatly improves the comfort of back. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in combination with specific examples:

[0015] Figure 1 It is triangle backrest stool schematic diagram

[0016] Figure 2 It is triangle backrest stool folding support schematic diagram

[0017] Figure 3 It is triangle backrest stool folding support side view schematic diagram

[0018] Figure 4 It is backrest rod local partial view schematic diagram

[0019] Figure 5Diagram showing the folding state of the triangular back stool's folding bracket.

[0020] Figure 6 A side view diagram of the folding bracket of the triangular back stool in its folded state.

[0021] Figure 7 Schematic diagram of a folding chair frame

[0022] in

[0023] 100—Folding frame; 200—Seat cushion fabric; 300—Backrest fabric;

[0024] 1—Backrest rod; 11—Body section; 111—Inclined section; 12—Folding section; 121—Slotted structure; 122—Protrusion;

[0025] 13—Rivet;

[0026] 2—Diagonal brace; 3—Upper hinge seat; 4—Lower hinge seat;

[0027] 5—Diagonal support rod; 51—Limiting ring; 6—Seat cushion rod; 7—Handrail rod; 8—Handrail support rod; 9—Sliding sleeve; Detailed implementation method:

[0028] Reference Figures 1 to 6 Taking a triangular stool as an example, this paper describes a folding chair that reduces packaging height. It is also applicable to any folding chair with a backrest material supported by two backrest rods. The folding chair that reduces packaging height includes a folding bracket 100, a seat cushion fabric 200 supported by the folding bracket, and a backrest material 300. The folding bracket 100 is also provided with backrest rods 1 on both sides corresponding to the rear of the seated position to hang the backrest material 300 and provide back support.

[0029] The backrest rod 1 includes a main body section 11 and a folding section 12. The folding section 12 is hinged to the top of the main body section 11 by a rivet 13. When opened, it can maintain the same direction as the main body section 11, and it can also be folded forward relative to the main body section 11 to achieve the purpose of reducing the height. The backrest material 300 is hung on the folding section 12 and can be folded back and stored with the folding section 12.

[0030] The cross-section of the main body section 11 of the backrest rod is circular, elliptical or square, that is, a traditional rod. The folding section 12 has a groove structure 121 at least at the hinge point with the main body section 11. The groove structure 121 is wrapped around the main body section 11 on three sides and is hinged to the top of the main body section 11 by rivets 13. When opened, the bottom of the groove structure 121 abuts against the main body section 11, forming a force support for the backrest material 300, and can also keep the axial direction of the backrest rod 1 consistent after opening.

[0031] Further, the groove structure 121 is symmetrically recessed with inward convex points 122 below the rivet hinging position, and the two convex points 122 slide through the recessed part corresponding to the widest part of the body section 11 or the square tube to form the positioning of the folding section 12 opening, that is, to maintain the upright use state, as shown in Figure 4 .

[0032] The folding section 12 is integrally formed by the groove structure 121 of the steel plate, which is formed at one time, and the process is simpler. Of course, the folding section 12 can also be a pipe as the body section 11, and a groove structure is welded at the lower end to meet the riveting needs.

[0033] Further, the body section 11 of the backrest rod has a rear inclined section 111 at the top, which is not longer than 10 cm and has an inclination angle of 5 to 30 degrees, as shown in Figure 3 and Figure 4 ; and the hinging position of the folding section 12 is on the inclined section 111. The folding chair with the upright design of the backrest rod 1 is applicable, and the shorter inclined section 111 does not affect the rear space occupied after folding, and the folding section 12 is hinged by the rear inclined section, and the folding section 12 is in an inclined state after opening, so that the backrest fabric 300 is hung and inclined backward, which conforms to the backrest ergonomics and is more comfortable to lean back.

[0034] The scheme is preferred on the triangular backrest stool, which is not only small and light but also has a reasonable height after folding, and the packaging meets the length requirements of express delivery transportation, thereby reducing the cost of transportation process. The triangular backrest stool is as follows:

[0035] The folding support 100 is folded in a bundle and includes three vertical surfaces, each of which is composed of two inclined rods 2 hinged at the middle, and the end portions of the inclined rods 2 of each vertical surface and the adjacent vertical surface are hinged together through upper hinge seats 3 and lower hinge seats 4. The seat cushion surface 200 is hung on the three upper hinge seats 3; the backrest rod 1 is hinged at the lower end of the lower hinge seat 4, the upper end passes through the upper hinge seat 3, and the backrest fabric 300 is hung on the folding section 12.

[0036] The triangular backrest stool is evolved from the four-corner folding backrest chair, and the four-corner folding backrest chair is similar to the triangular backrest stool, which only has four vertical surfaces, four upper hinge seats 3, and four lower hinge seats 4. The seat cushion surface 200 is hung on the four upper hinge seats 3 to form a square seat cushion.

[0037] Referring to Figure 7, the folding chair with the upright backrest rod also has a preferred solution, the folding support can also be folded in a bundle, which includes four vertical surfaces, the two side vertical surfaces include the inclined support rod 5, the seat cushion rod 6 and the backrest rod 1, the seat cushion rod 6 is cross-hinged with the inclined support rod 5, the rear end of the seat cushion rod 6 is hinged on the backrest rod 1, the backrest rod 1 passes through the upper hinge seat 3 hinged on the upper end of the inclined support rod 5, forming a foldable triangular support structure; the front and rear vertical surfaces of the folding support 1 are connected by two middle cross-hinged inclined rods 2; the seat cushion fabric 200 is hung between the two seat cushion rods 6, and the seat cushion fabric can be tightened by the two seat cushion rods 6, which can keep the sitting posture more firm. The backrest fabric 300 matched with this folding chair can also be designed as one body with the seat cushion fabric 200, and since the fabric is flexible oxford cloth, it does not affect the folding of the folding section 12. In addition, since the backrest rod 1 can be folded, it can be conveniently designed as a high-back folding chair product to meet different needs.

[0038] Further, the folding support 100 further comprises a handrail rod 7, the rear end of which is hinged on the inclined support rod 5 or the upper hinge seat 3, and the front end is supported by a handrail support rod 8, the middle part of which is hinged on the front part of the seat cushion rod 6, and the lower end is hinged on a sliding sleeve 9 arranged on the inclined support rod, and a limiting ring 51 is locked on the inclined support rod 5, which can abut against the lower edge of the sliding sleeve 9 when the folding support 100 is opened to the right position, providing downward force support for the handrail support rod 8, in addition, the rivet point of the limiting ring 51 can also provide the hinge of the inclined rod 2. The folding support 100 not only can be equipped with a handrail, but also can further improve the load-bearing capacity of the front part of the seat cushion rod 6, and the load can be introduced into the lower part of the inclined support rod 5 through the handrail support rod 8.

[0039] In addition to the above two preferred folding supports 100, the solution with two backrest rods 1 on the rear vertical surface can also adopt the structure of the design, which effectively reduces the packaging height after folding, and also obtains the comfortable effect of the backrest being appropriately inclined backward, achieving two effects at once.

Claims

1. A folding chair with reduced package height, comprising a folding frame, a seat fabric and a backrest fabric supported by the folding frame, wherein the folding frame is further provided with a backrest rod on each side corresponding to the back of the sitting position; characterized in that: The backrest rod comprises a body segment and a folding segment, which is hinged to the top of the body segment by a rivet, and can be kept in the same direction as the body segment when opened, and can be folded forward relative to the body segment; the backrest fabric is hung on the folding segment.

2. A fold chair of reduced packaging height according to claim 1, characterized in that: The cross section of the body segment of the backrest rod is circular, oval or square, and the folding segment is at least hinged to the body segment in a groove-shaped structure, which is wrapped on the body segment from three sides, and is hinged to the top of the body segment by a rivet, and the bottom of the groove-shaped structure is in contact with the body segment when opened, forming a force support for the backrest fabric.

3. A fold chair of reduced package height according to claim 2, characterized in that: The groove-shaped structure is symmetrically recessed downward at the rivet hinge position, and the two protrusions slide through the widest part of the body segment or the corresponding recessed part of the square tube when opened, forming the positioning of the folding segment opening.

4. A fold chair of reduced height according to claim 2 or 3, characterised in that: The folding segment is integrally formed by a groove-shaped structure of a steel plate.

5. A fold chair of reduced height as claimed in claim 1, 2 or 3, characterised in that: The top of the body segment of the backrest rod has a rear inclined segment, which is not longer than 10 cm and has an inclination angle of 5 to 30 degrees. The hinge position of the folding segment is on the inclined segment.

6. The fold chair of claim 1 wherein: The folding support is folded in a bundle, comprising three or four vertical surfaces, each vertical surface being composed of two inclined rods hinged at the middle, and the inclined rods at the end of each vertical surface and the inclined rods at the end of the adjacent vertical surface being hinged together through upper and lower hinge seats, and the seat cushion fabric being hung on the three or four upper hinge seats; the lower end of the backrest rod is hinged to the lower hinge seat, and the upper end passes through the upper hinge seat and is hung with the backrest fabric on the folding segment.

7. The fold chair of claim 1 wherein: The folding support is folded in a bundle, comprising four vertical surfaces, the two side vertical surfaces comprising inclined support rods, seat cushion rods and backrest rods, the seat cushion rods being hinged with the inclined support rods, the rear end of the seat cushion rod being hinged to the backrest rod, the backrest rod passing through the upper hinge seat hinged to the upper end of the inclined support rod, forming a foldable triangular support structure; the front and rear vertical surfaces of the folding support are associated by two inclined rods hinged at the middle; the seat cushion fabric is hung between the two seat cushion rods.

8. A fold chair of reduced package height according to claim 7, characterized in that: The folding support further comprises a handrail rod, the rear end of which is hinged to the inclined support rod or the upper hinge seat, and the front end is supported by a handrail support rod, the middle of which is hinged to the front part of the seat cushion rod, and the lower end is hinged to a sliding sleeve set on the inclined support rod, and a limiting ring is also locked on the inclined support rod, which can be in contact with the lower edge of the sliding sleeve when the folding support is opened to the right position, providing downward force support for the handrail support rod.

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