CN2448193Y - Folding chair support with armrest - Google Patents

Abstract

The utility model relates to a folding chair support with an armrest. An armrest of the existing folding chair support passes through a closed hole of a front upper hinge head, so the hinge head is easy to damage, and is hard to assemble and disassemble. Four sides of the utility model is composed of a folding support which is formed by the mutual hinge of support rods. The top and the bottom of two adjacent sides are corresponding to the end heads of the support rods, and two sides are hinged with the same hinge head to form a folding knee point. The utility model is characterized in that the front upper hinge head is provided with a semienclosed gap. The support rod of the armrest which passes through the gap is hinged with the hinge wall of the armrest at the side of the gap. So, the armrest is easy to assemble and disassemble by hand, and the hinge head is hard to damage.

Description

The folding seat bracing frame of Armrest

The utility model belongs to a kind of folding seat bracing frame of Armrest.

The folding seat support frame structure of existing Armrest is as shown in Figure 1: intersect support that hinge is connected to form as four sides by support bar, corresponding support bar termination, adjacent two sides difference hinge is in a hinge head, form folding flex point, the structure of its leading flank support and handrail is generally: the X-shaped leading flank support (3) that two support bar middle hinge form is as leading flank, two terminations, X-shaped support bottom and corresponding support bar termination, beside bottom hinge are in preceding hinge head (4) down, upper hinge head (2) and extension bending obliquely upward before two terminations, top are passed, form handrail (1), the support bar termination on beside support top is connected with preceding upper hinge head (2) hinge, the preceding upper hinge head 2 set holes that this folding seat bracing frame adopts are the closed hole, the upwardly extending handrail of leading flank support bar passes preceding upper hinge head closed hole, oblique leaning against on the sealing hole wall, its weak point one is that preceding upper hinge head is damaged by the handrail active force easily, the 2nd, install inconvenient.

The utility model is intended to overcome above-mentioned deficiency, provides that a kind of armrest portion is convenient to install, the folding seat bracing frame of the non-damageable Armrest of preceding upper hinge head.

The technical scheme that realizes above-mentioned purpose is (referring to implementing illustration): four sides of the present utility model are made up of the Collapsible rack that the mutual hinge of support bar forms, adjacent two sides up and down corresponding support bar termination respectively hinge form folding flex point in same hinge head, its leading flank support (3) intersects the X-shaped support that hinge forms mutually by two support bars to be formed, X-shaped support two support bar tops are passed and the hinged preceding upper hinge head (5 in corresponding support bar termination, beside support (7) top, 6) and extend upward and be bent to form handrail (1), it is characterized in that: upper hinge head (5 before described, 6) be provided with semi-enclosed gap (15), the support bar of the Armrest (1) of upper hinge head is connected with handrail hinge wall (14) hinge of gap side before described the passing, and handrail hinge wall (14) is with vertical mutually with beside support bar (12) termination hinged side bar hinge wall (13) on this hinge head.

Handrail of the present utility model (1) and preceding upper hinge head (5,6) stress point between mainly drops on the hinge point, so upper hinge head before not fragile is simultaneously because preceding upper hinge head changes semi-enclosed gap into by the closed hole of prior art, so the handrail support bar is convenient to installing/dismounting.

Description of drawings:

The folding seat support frame structure schematic diagram of Fig. 1, prior art Armrest

Fig. 2, the utility model example structure schematic diagram

Fig. 3, the utility model embodiment handrail 1 and preceding upper hinge head syndeton enlarged diagram

Upper hinge head polycrystalline substance schematic diagram before Fig. 4, the utility model embodiment

Preceding upper hinge head 6 structural representations on Fig. 5, the utility model embodiment left side

Preceding upper hinge head 5 structural representations on Fig. 6, the utility model embodiment the right

Fig. 7, preceding upper hinge head 5 polycrystalline substance schematic diagrames shown in Figure 6

Fig. 8, the utility model embodiment load onto the view behind the seat

Fig. 9, the utility model embodiment folded state schematic diagram

The drawing reference numeral explanation:

The preceding hinge head down of upper hinge head 3-leading flank support 4-before the l-handrail 2-

Hinge head under behind the preceding upper hinge head 7-beside support 8-of the preceding upper hinge head 6-of 5-

Upper hinge head 10-backrest support rods 11-trailing flank support 12-beside support bar behind the 9-

13-side bar hinge wall 14-handrail hinge wall 15-gap 16-inclined-plane

The embodiment explanation:

This routine both sides side supports 7 be by four support bars respectively with 2 of ends separately hinge in twos mutually, thereby form the rhombus hinge frame of four hinge points in the centre

The shape support, forward and backward side the 3, the 11st intersects the X-shaped support that hinge forms mutually by two support bars, the support bar termination hinge of the upper and lower correspondence in adjacent two sides forms folding flex point in same hinge head, the gap 15 on the preceding upper hinge head 5,6 of two beside is passed on leading flank X-shaped support top, and extend upward and bend to handrail 1, the support bar of Armrest is connected with handrail hinge wall 14 hinges of gap side, and handrail hinge wall 14 is with vertical mutually with the hinged side bar hinge wall of beside support bar 12 13.

The blind end of upper hinge head 5,6 set gap 15 is provided with inclined-plane 16 before this example, can make itself and the hinged handrail support bar of handrail hinge wall more stable.

Because two support bars of intersection composition X-shaped leading flank support 3 are not at grade, so 15 1 close central axis of the gap of being opened on left and right two preceding upper hinge heads 5,6, one is departed from central axis (seeing Fig. 5, Fig. 6), to guarantee making two preceding upper hinge heads be positioned at same plane.

Claims (2)

1, the folding seat bracing frame of Armrest, its four sides are made up of the Collapsible rack that the mutual hinge of support bar forms, adjacent two sides up and down corresponding support bar termination respectively hinge form folding flex point in same hinge head, its leading flank support (3) intersects the X-shaped support that hinge forms mutually by two support bars to be formed, X-shaped support two support bar tops are passed and the hinged preceding upper hinge head (5 in corresponding support bar termination, beside support (7) top, 6) and extend upward and be bent to form handrail (1), it is characterized in that: upper hinge head (5 before described, 6) be provided with semi-enclosed gap (15), the support bar of the Armrest (1) of upper hinge head is connected with handrail hinge wall (14) hinge of gap side before described the passing, and handrail hinge wall (14) is with vertical mutually with beside support bar (12) termination hinged side bar hinge wall (13) on this hinge head.

2, the folding seat bracing frame of Armrest according to claim 1 is characterized in that: the blind end of upper hinge head (5), (6) set gap (15) is provided with inclined-plane (16) before described.

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