CN2431777Y - Folding chair - Google Patents

Abstract

The utility model relates to a folding chair, which has simple structure and can be expanded and folded conveniently and comprises a front foot rack and a back foot rack. The front foot rack is provided with two front foot levers, the back foot rack is provided with two back foot levers, and the front and the back foot levers are respectively pivoted by fulcrum shafts. The front foot rack is provided with plugging channels, the lever wall is provided with at least a regulating positioning hole, and two plugging channels are respectively provided with a delay supporting mechanism. The delay supporting mechanism comprises a delay supporting rod and a regulating striking flake, the delay supporting rod is respectively provided with a main opening, the regulating striking flake is provided with a regulating elastic snap which penetrates out the main opening and is positioned in the regulating positioning hole, and the top ends of two delay supporting rods and two back foot levers are respectively provided with a group of seat frames which are provided with cushions.

Description

Folding seat

The utility model relates to a kind of folding seat.

The structure of prior folding chair is as No. 92228361.3 utility model, it mainly is the foot rest rear rear leg that is pivoted before, above preceding foot rest, has a back-rest, two bars of sitting that can do folding of the position in its central the place ahead assembling, two sit set up one between bar and back-rest can be for the seat and back cushion that leans on; This existing folding seat is because each element relativeness is fixed, and therefore, its basic kenel that presents is identical, and element necessary on the chair is also more, and each element can't be in the same plane when folding.

Therefore, the purpose of this utility model is to provide a kind of simple in structure and open and fold folding seat easily.

Folding seat of the present utility model, a foot rest and a rear leg before comprising one, should before foot rest have two parallel to each other and the preceding foot levers that stretch to retreading on the top, have the corresponding and back foot lever forwards tiltedly stretched simultaneously about two on this rear leg, be pivoted with a fulcrum respectively between the forward and backward foot lever of homonymy; It is characterized in that: have an opening slotting road up between the bar wall of each preceding foot lever on this preceding foot rest, on the bar wall, offer at least one adjustment locating hole, on two slotting roads, assemble one respectively and prolong support mechanism, this prolongs support mechanism and comprises a strut that prolongs that is plugged in the road, with an adjustment shell fragment that is assembled in the axle track that prolongs strut, each prolongs and offers one and adjust the laterally corresponding main perforate of locating hole on the strut respectively, and this adjustments shell fragment has one and passes this main perforate and be positioned at the interior adjustment snap-on of adjustment locating hole; Prolong strut and two rear foot masthead ends two and set up a seat frame that is assembled with a cushion.

Described folding seat is characterized in that: this seat frame is at ring frame portion outstanding four Connection Blocks in bottom, the fin that all has two correspondences on each Connection Block and wear for pivot.

Described folding seat, it is characterized in that: this preceding foot lever offers an assist location hole by the top, and this prolongs the interior auxiliary shell fragment of assembling of axle track of strut, and an auxiliary snap-on of this auxiliary shell fragment is to give prominence to by prolonging an auxiliary perforate that is provided with on the strut, and is positioned on the assist location hole of preceding foot lever.

By above explanation as can be known, the advantage of the folding seat that this practicality is new is that it is simple in structure, and opens and fold conveniently.

Below by most preferred embodiment and accompanying drawing folding seat of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is that the utility model one preferred embodiment launches and the stereogram when taking off cushion.

Side view when Fig. 2 is the utility model one preferred embodiment expansion.

Fig. 3 is the syntagmatic cutaway view that prolongs strut and preceding foot rest of the utility model one preferred embodiment.

Fig. 4 is the side view that lying angle is adjusted in the utility model one preferred embodiment.

Fig. 5 is the vertical view that folds of the utility model one preferred embodiment.

Consult Fig. 1,2, the folding seat of present embodiment comprises: foot rest 1, a rear leg 2, two prolong support mechanism 3, a seat frame 4 and a cushion 5 before one.

Cooperate and consult Fig. 3, foot rest 1 before being somebody's turn to do, having one is positioned at the place ahead and can be seated in ground laterally preceding support section 11, should precedingly support section 11 left and right sides foot lever 12 before the back upper place tiltedly stretches respectively, all has an opening slotting road 121 up on the foot lever 12 before two, the bar wall of foot lever 12 is offered one respectively by the top and is positioned at the assist location hole 122 in the outside and several are positioned at inboard adjustment locating hole 123 before each.

This rear leg 2, its have one with the back brace section 21 of the parallel correspondence in preceding support section 11 front and back, these back brace section 21 left and right sides are forwards tiltedly stretched a back foot lever 22 respectively, the width that two back foot levers are 22 is greater than the width of 12 of two preceding foot levers, borrow a fulcrum 23 one that is pivoted respectively 12,22 of the forward and backward foot levers of homonymy, offer radially first a pivot hole 221 on each foot lever 22 top, back respectively.

This prolongs support mechanism 3, foot lever 12 tops before two of foot rest 1 before being assembled in respectively, each prolong support mechanism 3 all comprise prolong strut 31, an auxiliary shell fragment 32 and is adjusted shell fragment 33; This prolongs strut 31 and has a diameter less than the bar wall 311 of inserting road 121, constitute an axle track 312 on 311 on bar wall, radially second a pivot hole 313 is offered on above-mentioned bar wall 311 tops, on the bar wall 311 below the second pivot hole 313, have one with the laterally corresponding auxiliary perforates 314 in assist location hole 122 and one can with the 123 horizontal corresponding main perforates 315 of adjustment locating hole; And auxiliary shell fragment 32 is to be installed in the axle track 312 that prolongs strut 31, has the shell fragment portion 321 of a tool elastic force on it, is provided with one and can protrudes in the auxiliary snap-on 322 of assisting perforate 314 in shell fragment portion 321; And this adjustment shell fragment 33 also has one and is installed in the adjustment snap-on 332 that shell fragment portion 331 in the axle track 312 and an autonomous perforate 315 are given prominence to.

This sits frame 4, ring frame portion 40 with a sealing round, this ring frame portion 40 can be the circle of embodiment, it also can be square, oval or the like other geometric modeling, at four corresponding all around Connection Blocks 41 of ring frame portion 40 bottom solid weldings, each Connection Block 41 all has two corresponding and outstanding fins 411 downwards, 411 of two groups of fins that are positioned at the place ahead can stretch into for the top of back foot lever 22, borrow a preceding pivot 42 that foot lever 22 tops, back are hubbed at the below of sitting frame 4 between the two more respectively, and two groups of fins 411 that are positioned at the rear can stretch into for the top of prolonging strut 31, borrow a back pivot 43 to be pivoted between the two.

This cushion 5 is erected at and sits on the frame 4, takes, leans on for the user.

Consult Fig. 1,2, the folding seat of present embodiment is after assembling, this forward and backward foot lever 12,22 is intersection setting, because the rear of two preceding foot levers 12 is installed one respectively and is prolonged strut 31, respectively prolong the location that strut 31 is subjected to auxiliary shell fragment 32 again respectively and adjusts shell fragment 33, therefore, be erected at the two seat frames 4 that prolong strut 31 and two preceding foot lever 12 tops and can present low early and high after kenel, so the user just can ride in and stay on the cushion of sitting on the frame 45.

Consult Fig. 3,4, when present embodiment will be adjusted the luffing angle of sitting frame 4, the just interior simultaneously adjustment snap-on 332 of pressing the auxiliary snap-on 322 of auxiliary shell fragment 32 and adjusting shell fragment 33, push away the rear of sitting frame 4 then down, before this prolongs strut 31 and just can be collected in the slotting road 121 of foot lever 12, when luffing angle is appropriate, loosen auxiliary, as to adjust shell fragment 32,33 auxiliary, adjustment snap-on 322,332 again, at this moment, both sides are adjusted snap-on 332 and just can be given prominence in the adjustment locating hole 123 that is positioned at suitable height, to locate the luffing angle of this seat frame 4; As long as the utility model has adjustment locating hole 123, the main perforate 315 of adjusting snap-on 33 and cooperating in design, just can reach effects such as adjustment and location, function as for auxiliary snap-on 32 is to assist the location, avoiding when adjusting snap-on 33 and be positioned at the adjustment locating hole 123 of the top, this preceding foot lever 12 with prolong 31 of struts because socket length is lacked and influence its socket steadiness.

Cooperate Fig. 3,5, when the folding seat of present embodiment when carrying out folding, press outstanding adjustment snap-on 332 in same, so strut 31 is prolonged under the state that lacks the location in both sides, just can collection progressively go in the slotting road 121 of foot lever 12 before two, and then before making, rear leg 1,2 is that fulcrum folds with both sides fulcrum 23, and before making, back brace section 11,21 gradually away from, and since the width of two 22 of the foot levers in back greater than the width of 12 of foot levers before two, therefore, before after folding, being somebody's turn to do, rear leg 1,2 can the position on a plane, this seat frame 4 then is preceding, rear leg 1,2 top reaches the purpose that folds whereby.

Claims (3)

1, a kind of folding seat, a foot rest and a rear leg before comprising one, should before foot rest have two parallel to each other and the preceding foot levers that stretch to retreading on the top, have the corresponding and back foot lever forwards tiltedly stretched simultaneously about two on this rear leg, be pivoted with a fulcrum respectively between the forward and backward foot lever of homonymy; It is characterized in that:

Has an opening slotting road up between the bar wall of each preceding foot lever on the foot rest before being somebody's turn to do, on the bar wall, offer at least one adjustment locating hole, on two slotting roads, assemble one respectively and prolong support mechanism, this prolongs support mechanism and comprises a strut that prolongs that is plugged in the road, with an adjustment shell fragment that is assembled in the axle track that prolongs strut, each prolongs and offers one and adjust the laterally corresponding main perforate of locating hole on the strut respectively, and this adjustments shell fragment has one and passes this main perforate and be positioned at the interior adjustment snap-on of adjustment locating hole; Prolong strut and two rear foot masthead ends two and set up a seat frame that is assembled with a cushion.

2, folding seat as claimed in claim 1 is characterized in that: this seat frame is at ring frame portion outstanding four Connection Blocks in bottom, the fin that all has two correspondences on each Connection Block and wear for pivot.

3, folding seat as claimed in claim 1, it is characterized in that: this preceding foot lever offers an assist location hole by the top, and this prolongs the interior assembling one auxiliary shell fragment of axle track of strut, an auxiliary snap-on that is somebody's turn to do auxiliary shell fragment is to give prominence to by prolonging an auxiliary perforate that is provided with on the strut, and is positioned on the assist location hole of preceding foot lever.

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