The invention is to a folding chair that is disassemblable.
There are currently flat surface folding chairs that may be produced in a variety of designs. However, the design that assembles the chair with two cross-hinged support bars located on the left and right sides is the simplest. Similar to Chinese patent application number 201320749983X that discloses a type of folding chair including two identical or symmetrical support legs on both sides, a seat cushion, and an upholstered seat back. The support legs include front-tilting support bars and crossed rear-tilting support bars that are cross-hinged with movable hinge joints. The rear-tilting support bars extend upwardly to the seat cushion to form support for the seat back. The seat back has two sections which are fitted with backrest cushions. The chair seat is installed on the seat bar. The movable hinge joint on the front of the seat bar, which is hinged to the upper end of the front-tilting support bar, and the movable hinge joint on the rear, which is hinged to the middle of the rear-tilting support bar, together create the weight supporting structure. The front-tilting support bars and the rear-tilting support bars on both sides are the two sections of a U-shaped bar or are connected together via their corresponding bars.
A second existing design is a further simplified structure, like Chinese patent application number 201420465689.0, which discloses a folding sofa that comprises support legs on both sides and the sofa body. Each support leg comprises a pair of front-tilting and rear-tilting support bars that are crossed and joined together by a movable hinge. The rear-tilting support bar is taller than the front-tilting support bar, with the taller portion providing support for the seat back. The front-tilting support bar and the rear-tilting support bar on both sides are two sections of the U-shaped bar. The sofa body is made of soft upholstered material, with built-in seats, armrests, and seat backs. The exterior of the seat backs and armrests is fitted with seat cushions and armrest cushions. The backrests are affixed to the seat backs via the seat back cushions. Using the front- and rear-tilting support bars to provide direct support for the sofa body is the most succinct design structure.
The two structures above only allow two-dimensional folding. They do not allow folding further from the left or the right sides. This creates inconvenience for packing, storing or transporting. Additionally, using the rear-tilting support bar to support the seat back at the same time affects the overall height after folding. How to overcome the inadequacy of existing technology and to come up with a more reasonable design has become a goal of this invention.
A primary goal of this invention is to design a bar component that connects the front-tilting support bars and the rear-tilting support bars on the two sides, both of which are pairs of diagonal bars. One end of the diagonal bar pair is affixed to a support bar in the form of a detachable structure. When detached, the support bars on both sides will collapse onto each other, creating a folding chair that is disassemblable. A secondary goal is to create a detachable structure for the rear-tilting support bar so that it reduces the overall height after folding.
The technical proposals of the invention is achieved in the following way:
On the aforementioned end of the front diagonal bar pair and the rear diagonal bar pair, the position of the detachable structure is secured by a bolt. There should be a plastic component affixed to each of the detachable positions that correspond to the front-tilting support bars and the rear-tilting support bars. That plastic component has a bolt hole so that the aforementioned bolt can be screwed on.
The aforementioned movable hinge that joins the front-tilting support bar and the rear-tilting support bar together belongs to one of the following two structures: 1) the front-tilting support bar and the rear-tilting support bar are crossed and joined together by a rivet hinge; and 2) the rear-tilting support bar is mounted with a sliding cap on the top, and the front-tilting support bar passes through that sliding cap to create the movable hinge.
The aforementioned rear-tilting support bar has a sectional structure which includes a support section and a seat back section. The seat back section is inserted at the end of the support section to be integrally connected to each other. The aforementioned upholstered seat back cushion is attached to the upper portion of the seat back area and the upper portion of the front-tilting support bars.
The aforementioned upper portion of the seat back area is mounted with an immovable plastic component for the seat back, and the upper portion of the front-tilting support bars is mounted with an immovable plastic component for the seat. The upholstered seat back cushions are directly affixed to the aforementioned plastic components for the seat and the seat back.
The aforementioned immovable plastic component for the seat is mounted on a short bar. The insertion of a short bar in the upper portion of the front-tilting support bars creates a fixed positioning structure.
The diameters of the seat back section and the support section of the rear-tilting support bars are preferably identical. A core tube is inserted in the lower part of the seat back section. This core tube is also inserted into the upper part of the support section so that the two sections are joined together as one unit.
This invention replaces the bar that connects the two support legs on the left and right sides with a set of diagonal bars. In addition, by way of a detachable structure positioned on one end of the diagonal bars, that end can be disassembled, allowing the support legs on both sides to be brought together and folded. Supplemented by a sectional design of the rear-tilting support bars, the overall height after folding is further reduced, so that the product size is even more compact after folding, more space efficient, more portable, and more convenient to store.
Similar reference characters denote corresponding features consistently throughout the attached drawings. Namely, in the drawings the following reference numbers refer to the following parts:
With reference to
The front-tilting support bars 2 on the two sides and the rear-tilting support bars 3 on the two sides are joined together by diagonal bars to form a single unit.
Connecting the front-tilting support bars 2 on both sides are a pair of cross-hinged front diagonal bars 4. One end of the front diagonal bar pair 4 is directly hinged onto the two front-tilting support bars 2. The other end is hinged on the front-tilting support bars through a detachable structure.
Connecting the rear-tilting support bars 3 on both sides are a pair of cross-hinged rear diagonal bars 5. One end of the rear diagonal bar pair 5 is directly hinged onto the two rear-tilting support bars 3; the other end is hinged on the rear-tilting support bars via a detachable structure.
On the end of the front diagonal bar pair 4 and the rear diagonal bar pair 5, the position of the detachable structure is secured by a bolt. There should be a plastic component 6 affixed to each of the detachable positions that corresponds to the front-tilting support bars 2 and the rear-tilting support bars 3. That plastic component 6 has a bolt hole so that the aforementioned bolt can be screwed on. Once the bolt is unscrewed, one end of the front and rear diagonal bars 4, 5 will be detached from the restraint of the plastic component 6. The diagonal bars will follow the support legs on both sides to be folded together at the same time.
The rear-tilting support bars 3 are taller than the front-tilting support bars 2, with the taller portion providing support for the seat back. As such, the rear-tilting support bars adopt a sectional structure that includes a support section 31 and a seat back section 32. The seat back section 32 is inserted at the end of the support section 31 to be integrally connected to each other. Furthermore, the diameters of the seat back section 32 and the support section 31 of the rear-tilting support bars 3 are preferably identical. A core tube 321 is inserted in the lower part of the seat back section 32. This core tube 321 is also inserted into the upper part of the support section 31 so that the two sections are joined together as one unit.
The upholstered seat back cushions 1 are attached to the upper portion of the seat back area 32 and the upper portion of the front-tilting support bars 2. This creates an integrated design so that the seat back may be positioned upright or reclined.
In order for the upholstered seat back to receive better support, a plastic component for the seat 7 is installed on the upper part of the front-tilting support bars 2, and an immovable plastic component for the seat back 8 is mounted on the upper portion of the seat back 32. The upholstered seat back cushion 1 is directly affixed to the aforementioned plastic components for the seat 7 and the seat back 8.
With reference to
As illustrated in