CN2054281U

CN2054281U - Portable folding stool

Info

Publication number: CN2054281U
Application number: CN 89208924
Authority: CN
Inventors: 梁信生
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-06-19
Filing date: 1989-06-19
Publication date: 1990-03-14

Abstract

The utility model relates to a seating device for carrying out by people, comprising a support rack composed of rods and a flexible seating face. The utility model is characterized in that the portable folding stool can be completely folded to a bundle shape, and the cost of processing is very cheap. The support rack is composed of eight rods which have two kinds of rod dimensions, the rods are provided with interchange ability, and the structure of once extrusion forming can all be adopted. The product of the utility model is suitable for carrying out by people, and the manufacture is very easy.

Description

Portable folding stool

The present invention is the thing to sit on that a kind of people go out to carry.

People's outdoor activity often need be carried a kind of thing to sit on.This thing to sit on generally possesses in light weight and foldability.The folding mode of Folding seat is a lot, but some volume after folding is also very big, and some product cost height is difficult for processing and manufacturing.Known a kind of bracing frame with a flexible seat face and rod member composition.Bracing frame generally supports the seat face by two cross bars, forms two tripods by four braces and is connected with support rail.Be connected with brace by two reinforcement cross bars in addition, rise and strengthen and positioning action.There is a hinged pair in the brace crosspoint.Chinese patent application case (88207660), the Folding seat technology that provides has improved a step, strengthening cross bar with two is connected with brace by being movably hinged pair, the cross bar of two supporting flexible seat faces is connected with brace by the connector of double freedom, two jointed shafts, faldstool is folded into a bundle shape fully, greatly facilitates carrying of people.But two cross bars are connected with the connector of brace by double freedom, two jointed shafts, though this has solved the rod member revolution that has two revolution frees degree relatively, have increased processing cost.

Task of the present invention is: the above technology is improved, created a kind of collapsible bundled shape, processing mode is simple, and cost is low, lightweight thing to sit on.

The solution of invention is: the cross bar of support seat face and brace are hinged by a revolute in the junction.In the hinged pair of rotation, can have an elastic washer between cross bar and the brace.Its another kind of structure is, brace and cross bar faying face or the joint line in hinged pair is with the axis of brace certain angle that can tilt.Cross bar has bulge-structure or bearing pin near hinged pair, the anglec of rotation of brace is played the role of positioning.Strengthen the broken away from hinged end of cross bar and brace, be connected with pin-and-hole by bearing pin.

Below give detailed explanation by drawings and Examples to the utility model.

Fig. 1 is the perspective view of an embodiment.

Fig. 2 is the folding process schematic diagram.

Fig. 3 is the schematic diagram that is folded into a bundle shape.

Fig. 4 is a kind of structure chart that brace (3) is connected with cross bar (2).

Fig. 5 is the another kind of structure chart that brace (3) is connected with cross bar (2).

Fig. 6 strengthens cross bar (4) can break away from end johning knot composition with brace (3).

This product is supported the seat face by the bracing frame of being made up of rod member.The rod member bracing frame is to form like this: form two tripods by four braces (3), there is a hinged pair (6) in the crosspoint of brace (3).One end of brace (3) is connected by a hinged pair of rotation (5) with cross bar (2).The other end of brace (3) is connected with reinforcement cross bar (4).Strengthening cross bar (4) is hinged pair with being connected of brace (3), and to have an end at least be the departing pair that is movably hinged.Two cross bars (2) support a seat face (1), and the seat face generally adopts flexible seat face.When this product is opened, as shown in Figure 1, be a Folding seat.When the need gathering was carried, an end and the brace (3) that at first will strengthen cross bar (4) broke away from, and draw close folding to brace (3) then.As shown in Figure 2.Then, it is folding to be come closer by the one tripod that two braces (3) are formed, and another tripod is drawn close foldingly again, will be folded into bundle shape as shown in Figure 3 at last.

But the tripod that two braces of this product (3) are formed in relative two cross bars (2) turning course, is not a revolution free degree in hinged pair (5), but constitutes two revolution frees degree mutually.This can be described by the structure chart that Fig. 4 and Fig. 5 provide.When two braces (3) drawing close folding in, can not be folded into same plane fully, must also constitute certain included angle (φ).If brace (3) is parallel with the axis of brace (3) with the faying face (N) of cross bar (2) in hinged pair, cross bar (2) is in turning course relatively for brace (3) so, and certain interference will appear in its face of mutually combining.This is because of the brace (3) and the mutual surface of revolution (N) of cross bar (2) in hinged pair, and inevitable angle bisector (E) with two braces (3) formation is parallel.Address this problem, can between cross bar (2) and brace (3), add and put an elastic washer (10).This structure can realize that a rotary pair connects, and compensation is owing to the different mutual interference that cause of faying face with the surface of revolution.Its another kind of structure as shown in Figure 5.Cross bar (2) is formed the hinged pair of rotation with an end of brace (3) by axle, hole, its mutually combine face or joint line (N) tilt certain angle (ε) its 2 times (ε) in two braces (3) are drawn close the scope of folding formed angle (ε) with the axis of brace (3).Like this, two braces (3) always can search out an angle in drawing close folding process, and making cross bar (2) is identical with the faying face and the surface of revolution of brace (3).

For the relative location of cross bar (2) anglec of rotation and stable of brace (3), the present invention realizes by putting a bearing pin or processing a bulge-structure (7) in cross bar (2).

For strengthening the break away from hinged pair of cross bar (4), realize by bearing pin (8) and pin-and-hole (9) with brace (3).One end of bearing pin (8) is fixed on brace (3) or the cross bar (4), and the pin-and-hole of the other end and brace (3) or cross bar (4) movingly.

Brace of the present invention (3) is connected in the hinged pair that is constituted with cross bar (2) or reinforcement cross bar (4), has two concave structures (B) and bearing pin or bulge-structure (7) snap-fit of symmetric arrangement.Brace (3) bears axially clamping force like this, has increased the stability of thing to sit on.On the other hand, adopt the symmetric arrangement structure, be easy to extrusion molding one time, have interchangeability again.Four braces of the present invention (3) and four cross bars (2) and (4), adopted two kinds of accessory sizes that can exchange---i.e. a brace accessory size and a cross bar accessory size.Simplify manufacturing procedure so greatly and reduced die cost.

Above narration has realized task of the present invention.

Claims

1, a kind of people of being suitable for portable folding stool of going out to carry.This product is by bracing frame of being made up of rod member and seat face (1).Bracing frame has two cross bars (2) can be with seat face (1) stretching.There are four braces (3) to form two tripods respectively and are connected, have hinged pair (6) in the crosspoint of brace (3) with cross bar (2).Other has two reinforcement cross bars (4) to be connected with brace (3), rises and strengthens and positioning action.It is characterized in that:

A, described brace (3) are connected by a hinged pair of rotation (5) with cross bar (2), and cross bar (2) has a bearing pin or bulge-structure (7) near the hinged pair of rotation.

B, described reinforcement cross bar (4) are hinged by the hinged pair of rotation with brace (3), and to have an end and brace (3) at least be to be connected movingly with pin-and-hole (7) by bearing pin (8).

2, portable folding stool according to claim 1 is characterized in that having elastic washer (10) between cross bar (2) and the brace (3).

3, portable folding stool according to claim 1 is characterized in that the faying face or the joint line (N) of brace (3) and cross bar (2), with the axis of brace (3) certain angle (ε) that tilts.

4, portable folding stool according to claim 1 is characterized in that brace (3) is in the auxiliary connection of cross bar (2) or bracing piece (4), has two concave structures (B) that are symmetrically distributed.

5, portable folding stool according to claim 1 is characterized in that four braces (3) and four cross bars (2) and (4), has only two kinds of accessory sizes, i.e. a brace accessory size and a cross bar accessory size.