CN2547207Y

CN2547207Y - Folding chair with triangular hinge

Info

Publication number: CN2547207Y
Application number: CN 01268963
Authority: CN
Inventors: 冷鹭浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-09
Filing date: 2001-12-09
Publication date: 2003-04-30
Anticipated expiration: 2011-12-09

Abstract

The utility model discloses a folding chair with triangular hinge mainly comprising front legs, rear legs, a sitting frame, a connection hinge and rear leg bulkheads, wherein, the connecting hinge consists of a sleeve and two flanks; the front legs are in muff coupling with the connection hinge and are fixed by rivets to form a rotary hinge; the rear legs are integrated with the connection hinge through the rear leg bulkheads and rotary hinges are also formed mutually, the sitting frame is connected with the front and rear legs through rivets to form rotary hinges, and limit on rotation of the sitting frame is carried out by connecting pieces and the rivets. The vertical distance between the axial line of the muff hole of the connection hinge and the axial line of the holes of the rear legs matching the two flanks should not be less than the sum of a front leg pipe radius and a rear leg pipe radius. Only the connection hinge which meets the requirements enables the sitting frame of the chair to be in parallel with the front and rear legs and the integral thickness and size of the chair both to be minimal in a folding state of the chair. The utility model has the advantages of prolonged service life, easy unfolding, and reduced integral thickness and size of the chair after folding.

Description

A kind of folding seat that has the triangle hinge

Technical field

The utility model relates to a kind of folding seat, and is relevant with the syndeton of its folding seat especially.

Background technology

Connection between its front and back leg of the folding seat that sell the existing market; general all the employing in the shrinkage pool of the bottom of back leg insertion foreleg directly connects with coupling spindle again, owing to opening and when folding; the forward and backward leg of chair weares and teares through regular meeting, thereby damages the chair leg and influence overall appearance.

The utility model content

The purpose of this utility model is to provide a kind of increasing the service life, and opens easily, can reduce the folding seat that has the triangle hinge of the integral thickness and the shared volume of folding seat after folding.

A kind of folding seat that has the triangle hinge of the utility model, mainly form by foreleg, back leg, seat frame, connection hinge and back leg plug, foreleg be connected the hinge socket, and connect into rotary gemel by rivet, back leg by the back leg plug be connected hinge and fuse, and constitute rotary gemel each other, the seat frame is connected by rivet with forward and backward leg and constitutes rotary gemel mutually.Forward and backward leg is spacing by brace and rivet.

Described connection is hinged and is made of sleeve pipe and two flanks.

Vertical range between the axis in the hole that the axis of connection hinge boot described in the utility model and back leg plug and two flanks match is not less than front leg tube radius and back leg pipe radius sum, has only the connection hinge that satisfies above-mentioned condition, just can make chair under folded state, seat frame and the foreleg of chair, back leg are parallel, and integral thickness and volume be minimum all.

After adopting said structure, the foreleg of folding seat and back leg are to link to each other with the back leg plug and constitutes rotary gemel by being connected hinge, so no matter are opening, and still are to fold can not wear and tear mutually, thereby have prolonged the employed life-span of folding seat.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the front view that the utility model connects hinge;

Fig. 2 is the vertical view that the utility model connects hinge;

Fig. 3 is the structure cut-away view of the utility model embodiment one;

Fig. 4 is the open mode figure of the utility model embodiment one;

Fig. 5 is the side view of the folded state of the utility model embodiment one;

Fig. 6 is the structure cut-away view of the utility model embodiment two;

Fig. 7 is the open mode figure of the utility model embodiment two;

Fig. 8 is the side view of the folded state of the utility model embodiment two;

The specific embodiment

Embodiment one, and as accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, a kind of folding seat that has the triangle hinge of the utility model mainly is made up of foreleg 1, back leg 2, seat frame 3, connection hinge 5 and back leg plug 6.Connect being hinged 5 is made of sleeve pipe 52 and two flanks 51, and foreleg 1 is inserted in the sleeve pipe 52 that connects hinge 5, and connects into rotary gemel by rivet 9, and back leg 2 fuses with two flanks 51 that are connected hinge 5 by back leg plug 5, and all constitutes rotary gemel each other.Seat frame 3 with preceding 1, afterwards 2 legs are connected by rivet and constitute rotary gemel, preceding 1, back 2 legs are spacing by brace 4 and rivet 9, brace 4 links to each other with back leg 2 with seat frame 3 respectively and constitutes rotary gemel, the axis normal distance in the hole that connection hinge 5 trepannings 52 and two flanks 51 match is not less than front leg tube radius and back leg pipe radius sum, has only the connection hinge that satisfies above-mentioned condition, just can make chair under folded state, seat frame and the foreleg of chair, back leg are parallel, and integral thickness and volume be minimum all.

Embodiment two, as accompanying drawing 6, Fig. 7, shown in Figure 8, are that with embodiment one difference brace links to each other with foreleg and constitutes rotary gemel.Rivet 10 is for opening the spacer pin of rear seat frame rotation.

Claims

1. folding seat that has the triangle hinge, by foreleg, back leg, the seat frame, connecting hinge and back leg plug forms, foreleg be connected the hinge socket, and be fixedly connected into rotary gemel by rivet, back leg by the back leg plug be connected hinge and fuse, and all constitute rotary gemel each other, the seat frame with before, back leg is connected by rivet and constitutes rotary gemel, it is characterized in that: connecting hinge is that triangle connects hinge, it is made of sleeve pipe and two flanks, and the vertical range between the axis in the hole that the axis that connects the hinge trepanning and back leg plug and two flanks match is not less than front leg tube radius and back leg pipe radius sum.

2. a kind of folding seat that has the triangle hinge according to claim 1 is characterized in that: described seat frame is spacing by brace and rivet, and brace links to each other respectively with back leg with the seat frame and constitutes rotary gemel.

3. a kind of folding seat that has the triangle hinge according to claim 1 is characterized in that: described seat frame is spacing by brace and rivet, and brace links to each other respectively with foreleg with the seat frame and constitutes rotary gemel.

4. a kind of folding seat that has the triangle hinge according to claim 1, it is characterized in that: described seat frame is spacing by the boss of brace and back leg plug, brace constitutes rotary gemel with the seat frame, brace and back leg are fixed, establish fairlead in the back leg, lead is inserted in fairlead, and lead and back leg plug are fixed.