FOLDING CHAIR
Field of the Invention The present invention relates to an article for use in daily life, and in particular to a folding chair.
Background As shown in Fig. 1 to Fig. 3, typically, in conventional folding chairs used in households in daily life, a seat 1' is merely folded against a backrest 4', that is, the seat 1' uses the pivot point of its rear portion with a rod of the backrest 3' as a rotation shaft, and by lifting the front portion of the seat 1', the seat 1 may assume a vertical orientation and at the same time abut against the back 4'. Therefore, after folding the chair, the height of the chair as a whole may increase. Although the chair is folded to become almost flat, the configuration thereof as a whole is still not as compact as possible, and thus it is not convenient not only in transportation, but also for storage. Therefore, the present invention is made for the purpose of minimizing the volume of the conventional folding chair when folded.
Summary The object of the present invention is to provide a folding chair which may effectively reduce the height after folding so as to obtain the minimum volume through folding.
To accomplish the above object, the solution of the present invention is as follows:
A folding chair, comprising: a seat panel, a seat bracket, a back bracket and a back panel;
the seat bracket comprises two sets of posts, each set respectively including a front post and a rear post which are mutually intersected and pivotable; the back bracket comprises two back posts, the back panel is fixed on the upper portions of the back posts;
wherein: the under surface of the seat panel is provided with a stopper for limiting the upper end of the front post, the front post is movably fitted on the seat panel, while the rear post is pivotable at the rear end of the seat panel; the lower portions of the two back posts are pivotable at both sides of the rear end of the seat panel, and the lower ends of the two back posts are connected by a stopping bar positioned behind the rear posts.
Said seat panel is a hard board, the under surface of which is formed longitudinally from rear to front at both sides with mating grooves for guiding the front posts.
Said seat panel is composed of a soft cushion connecting hard board strips at both sides, the under surfaces of the hard board strips are formed longitudinally from rear to front with mating grooves for guiding the front posts.
Said mating groove having an end positioned at about half the length of the seat panel defines a stopper.
Protective board strips extend downward from both sides of said seat panel.
The two front posts of said seat bracket are pivotally coupled to inner portions of the rear posts, and the upper end of the rear post is pivotally coupled to the protective board strip at the rear end of the seat panel.
The lower portions of the two front posts of said seat bracket are connected by a cross bar.
Said back posts, said seat panel and the rear posts of said seat bracket are pivotable via a pivot pin.
Said back panel is a hard board strip.
Said back panel is composed of a soft backrest connecting hard board strips at both sides.
By adopting the above solution of the present invention, since the front posts of the seat bracket are configured to have a movable cooperation relationship with the seat panel, so the seat panel may be folded against respective posts of the seat. Meanwhile, the pivotable relationship between the back bracket and the seat panel enables the back bracket to be folded against the seat bracket. Therefore, the height of the folding chair as a whole is effectively reduced through folding, so the volume of the folding chair after folding is reduced.
In addition, since the seat panel is folded between the two back posts, the thickness of the folding chair after folding is further minimized, thus it is convenient not only for storage but also for transportation, and cost of transportation is reduced.
Brief Description of the Drawings Fig. I is an illustration view showing a folding chair of the prior art in an unfolded state;
Fig. 2 is a view showing a folding operation of the folding chair of the prior art;
Fig. 3 is a view showing the folding chair of the prior art in a folded state;
Fig. 4 is an illustration view showing a folding chair of the present invention in an unfolded state;
Fig. 5 is a bottom view showing the folding chair of the present invention in the unfolded state;
Fig. 6 is a first view showing a folding operation of the folding chair of the present invention;
Fig. 7 is a second view showing the folding operation of the folding chair of the present invention; and Fig. 8 is a view showing the folding chair of the present invention in a folded state.
Detailed Description As shown in Fig. 4 to Fig. 8, the present invention discloses a folding chair, which comprises a seat panel 1, a seat bracket 2, a back bracket 3 and a back panel 4.
The seat panel 1 is a hard board, the under surface of which is formed longitudiually from rear to front at both sides with mating grooves 11, and the mating groove 11 extends across half the length of the seat panel 1. In addition, the mating groove 11 is designed so that from rear to front the width thereof becomes narrower, and the protective board strips 12 extend downward from both sides of the seat panel 1; the seat panel 1 may also be a soft cushion connecting hard board strips at both sides, and the under surfaces of the hard board strips are formed longitudinally from rear to front with mating grooves for receiving the front posts.
The seat bracket 2 comprises two sets of posts, each set including a front post 21 and a rear post 22 which are mutually intersected and articulated, wherein the two front posts 21 are pivotable inside the two rear posts 22, and at the same time, the upper portion of the front post 21 is slidingly coupled to the mating grooves 11 of the above described seat panel 1; the upper end of the rear post 22 is pivotally coupled to the protective board strip 12 at the rear end of the seat panel 1; in addition, the lower portions of the front post 21 are connected by a cross bar 23, which provides reinforcement to the front post 21, to improve strength for supporting the seat bracket 2.
The back bracket 3 comprises two back posts 31 and a stopping bar 32, and the lower portions of the two back posts 31 are pivotally coupled to outer portions of the protective board strips 12 at both sides of the seat panel 1. That is, the back posts 31, the seat panel 1 and the rear posts 22 of the seat bracket 2 are pivotally connected via a pivot pin; a stopping bar 32 connects the lower ends of the two back posts 31, meanwhile, the stopping bar 32 is positioned behind the above described rear posts 22, so after the unfolding of the back, the supporting angle of the back relative to the seat is defined by the stopping bar 32.
The back panel 4 is also a hard board strip, or a soft backrest connecting the hard board strips at both sides, which is fixed at the upper portion of the back bracket 3.
As shown in Fig. 4 and Fig. 5, when the folding chair is unfolded, the seat bracket 2 is in the unfolding state, that is, the upper end of the front post 21 is slidingly disposed in the front portion of the mating groove 11, while the stopping bar 32 of the back bracket 3 abuts the rear side of the rear post 22 of the seat bracket 2, thus a useful chair is erected.
As shown in Fig. 6, Fig. 7, and Fig. 8, when the folding chair is to be folded, first, the front end of the seat panel 1 is lifted up, so the upper end of the front post 21 is lifted up relative to the chair, and the top end of the front post 21 slides to the rear of the seat panel 1 along the mating groove 11 until it abuts against the upper end of the rear post 22, so the front post 21 are folded together with the rear post 22, then the front end of the seat panel 1 is rotated downward so as to abut against the front post 21 and the rear post 22 which have been folded together; finally, the back bracket 3 causes the back panel 4 to rotate downward with the pivot point of the lower portions of the two back posts 31 as the rotation shaft so as to abut against the seat panel 1, thus the seat panel 1 is folded right between the two back posts 31, and the folding up of the folding chair as a whole is achieved.
In conclusion, by adopting the above solution of the present invention, since the front posts 21 of the seat bracket 2 are configured to have a movable cooperation relationship with the seat panel 1, so the seat panel 1 may be folded against respective posts of the seat. In the meanwhile, the pivotable relationship between the back bracket 3 and the seat panel 1 enables the back bracket 3 to be folded against the seat bracket 2. Therefore, the height of the folding chair as a whole is effectively reduced through folding, so the overall volume of the folding chair after folding is reduced as well. Since the seat panel 1 is folded right between the two back posts 31, the thickness of the folding chair after folding is further minimized, thus it is convenient not only for storage but also for transportation, and in the meanwhile the cost of transportation is reduced.