CN2749370Y

CN2749370Y - Folding chair

Info

Publication number: CN2749370Y
Application number: CN 200420118738
Authority: CN
Inventors: 谢端正
Original assignee: Habitex Corp
Current assignee: Habitex Corp
Priority date: 2004-10-15
Filing date: 2004-10-15
Publication date: 2006-01-04
Anticipated expiration: 2014-10-15

Abstract

The utility model relates to a folding chair, which comprises a frame, a first supporting frame and a second supporting frame, wherein the frame can be sheathed with a chair cover to become a load bearing part. The first supporting frame and the second supporting frame are pivoted with the frame, and the first supporting frame is provided with two chutes and two positioning pins. Each chute is provided with a first end and a second end, and the second supporting frame is provided with two slide rods which can slide on the chutes and can generate action with the positioning pins The utility model drives the matching of the slide rods and the positioning pins by making use of pulling a pull rod to prevent that users are injured because of carelessness when the folding chair is retracted or unfolded. In addition, because the length of the first supporting frame and the length of the second supporting frame are different, an interval exists between the frame and the ground surface with a slope angle to lead users to be sit on comfortably.

Description

Fold-down seat

Technical field

The utility model relates to a kind of fold-down seat, particularly relates to a kind of fold-down seat of launching and folding of being easy to.

Background technology

As shown in Figure 1, general fold-down seat 7 in the past comprises a foot rest 8 and a seat cushion 9.Foot rest 8 has two pin frames 81 arranged in a crossed manner, and each pin frame 81 all has the seat cushion canned paragraph 82 of a level, and the support structure of forming an inverted U from downward two

foot levers

83,84 that extend of the front and back ends of seat cushion canned paragraph 82.Seat cushion 9 is to be erected on the seat cushion canned paragraph 82 of foot rest 8, and after 83 of foot levers and 84 of two back foot levers borrow a fulcrum assembly 85 pivot joints to be integral respectively before two, two

foot levers

83,84 can be fulcrum closing or expansion with fulcrum assembly 85, are sitting on the seat cushion 9 for the user.84 of 83 of foot levers and two back foot levers also are equipped with a support member 86 respectively in fulcrum assembly 85 belows before two, and this support member 86 can be amounted to fold-down seat 7 pivots, and when being launched into straight line, foot lever 81 is fixed on an expanded position.

But the support member 86 of above-mentioned fold-down seat 7 easily because of improper use crushes the user, really exists to remain improved place in the process of amounting to.

The utility model content

The purpose of this utility model is to provide a kind of fold-down seat that can launch easily and fold.

The utility model fold-down seat comprises: a framework, first support and second support.

This framework can a sheathed chair cover to form a supporting part; This first support has two first poles, parallel and compartment of terrain is articulated on this framework with an end, each first pole being provided with comprises the chute of first end and second end, and be provided with an alignment pin in contiguous this chute second end place, but each alignment pin is stretched on the movable end in this chute with comprising a force side and consistent perforating branches bar and elastic telescopic; This second support has two second poles, and parallel and compartment of terrain is articulated on this framework with an end, and each second pole is provided with the slide bar of slip in this chute; When this fold-down seat is in collapse state, this slide bar all is positioned at the first end place of each corresponding chute, when this fold-down seat is in a deployed condition, this slide bar slides onto this second end and is limited in this second end with this movable end generation effect by this first end, and this support with the support of this framework from ground, for taking.

Each first pole also is provided with inverted U-shaped bar in the utility model fold-down seat, and the both ends of this inverted U-shaped bar are connected on this first pole, and defines this chute jointly with first pole.

Each first pole is formed with the sleeve that can supply this alignment pin to plug in contrast to the opposite side of this inverted U-shaped bar in the utility model fold-down seat, and a spring that can supply alignment pin to wear is set in each sleeve.

The utility model fold-down seat also comprises a pull bar, and the two ends of this pull bar are connected with the force side of two alignment pins respectively.

The root edge of the described framework of the utility model fold-down seat is provided with can be for four U-shaped articulated parts of this first pole and the pivot joint of second pole, one end.

The utility model utilization pulling pull bar drives the cooperation of slide bar and alignment pin, prevents that the user is injured accidentally when fold-down seat being reached fold or launch; In addition,, make framework be interval in ground, the user can be taken more comfily with an angle of inclination because first support is different with the length of second support.

Description of drawings

Below by most preferred embodiment and accompanying drawing the utility model fold-down seat is elaborated, in the accompanying drawing:

Fig. 1 is a kind of stereogram of fold-down seat in the past;

Fig. 2 is an embodiment stereogram of the utility model fold-down seat;

Fig. 3 is the partial cut away side views of present embodiment;

Fig. 4 is the side view of present embodiment in a deployed condition;

Fig. 5 is present embodiment is converted to collapse state by deployed condition a process schematic diagram;

Fig. 6 is the side view of present embodiment in collapse state.

The specific embodiment

As shown in Figures 2 and 3, the utility model fold-down seat 1 comprises framework 21, first support 3, second support 4 and pull bar 5.

Framework 21 is the ring-type body, chair cover 23 is sheathed on framework 21 can forms a supporting part 2 that can supply the people to take, and the root edge of framework 21 is provided with four inverted U-shaped articulated parts 22 at interval accordingly.

The U-shaped body that first support 3 and second support 4 all are one of the forming.First support 3 has two first poles 31 that are parallel to each other and the connecting rod 34 that is connected two first poles 31, to form aforesaid U-shaped body.Same, second support 4 also has two second poles 41 parallel to each other and connects 43, two first poles 31 of connecting rod of two second poles 41 and an end of two second poles 41 is articulated with framework 21 corresponding four inverted U-shaped articulated parts 22 respectively.Again, because two first poles 31 of first support 3 width at interval is slightly larger than the width of 41 of two second poles of second support 4, and the length of two first poles 31 is the length greater than two second poles 41, after assembling, two first poles 31 of first support 3 lay respectively at two second pole 41 outsides of second support 4, and when launching, chair cover 23 is an inclined plane, so that the user takes.

On two first poles 31 of first support 3, also weld respectively and establish an inverted U-shaped bar 32.Each inverted U-shaped bar 32 all is to be welded on its pairing first pole 31 with its two side lever, and defines a chute 323 jointly with first pole 31.At this, for convenience of explanation, definition chute 323 has first end 321 and second end 322.Two second poles 41 of second support 4 then outwards are convexly equipped with the slide bar 42 of two slips in chute 323 respectively.

Cooperate Fig. 3, two first poles 31 of first support 3 are welded with the sleeve 311 that can wear for alignment pin 33 differing from the opposite side that is provided with inverted U-shaped bar 32, and the position of sleeve 311 is

first end

321 and 322 at second end and comparatively contiguous second ends 322 that are positioned at

chute

323, and 322 distances of second end of sleeve 311 and chute 323 are the diameters that are not less than slide bar 42.In addition, after two alignment pins 33 were difference socket one spring 333, the beginning was inserted in the corresponding sleeve 311.In this example, two alignment pins 33 are round bar shape, and all has a shoulder 334 that the force side 331 that is positioned at sleeve 311, bar footpath movable end 332 and big than force side 331 and that stretch out chute 323 is positioned at force side 331 and movable end 332 intersections, when alignment pin 33 inserts in its pairing sleeve 311, spring 333 is sheathed on force side 331, and be resisted against the shoulder 334 of alignment pin 33, and the movable end 332 that forces alignment pin 33 to stretch out chute 323 is resisted against inverted U-shaped bar 32.Therefore, at ordinary times, the movable end 332 of two alignment pins 33 is to be stretched on chute 323, to compress inverted U-shaped bar 32.When need make the movable end 332 of alignment pin 33 no longer be arranged in chute 323, only need force side 331 application of forces to two alignment pins 33, get final product to make movable end 332 move in the sleeve 311.In addition, when the application of force moved movable end 332, shoulder 334 can corresponding compression springs 333, thereby as user during no longer to force side 331 application of forces, were compressed the stored restoring force of spring 333, can promote movable end 332 and retract in the chute 323.

In addition, for making things convenient for the user to operate, the force side 331 of two alignment pins 33 is connected with the two ends of a pull bar 5 respectively, the user only need spur pull bar 5 backward when operation, just can drive the force side 331 of two alignment pins 33, make the movable end 332 that is stretched on chute 323 simultaneously, in first pole 31 of temporarily withdrawing.

As Fig. 4, when fold-down seat 1 during in deployed condition, first support, 3 relative second supports 4 launch and cross-shaped attitude, at this moment, slide bar 42 is second ends 322 that are positioned at chute 323, and first support 3 and 4 common cooperations with framework 21 supports overhead of second support, simultaneously, framework 21 by with angle of inclination support from ground, so that the user takes.What deserves to be mentioned is at this, when slide bar 42 is positioned at second end 322, can be limited in second end 322, make fold-down seat 1 can remain in deployed condition because of stopping of alignment pin 33 movable ends 332.

As shown in Figure 5, when the user desires to fold fold-down seat 1, spur earlier pull bar 5 backward, with force side 331 application of forces to two alignment pins 33, make the movable end 332 that originally is stretched in the chute 323, because the effect of pulling force, withdraw in first pole 31 backward, and the restriction of 33 pairs of slide bars 42 of releasing alignment pin, slide bar 42 just can be smoothly moves towards first end 321 of chute 323, and first support 3 and second support 4 also move towards the direction near framework 21 simultaneously, until the collapse state as Fig. 6, first support 3 and second support 4 all closing make fold-down seat 1 amount to into a flat pattern and receive and keep standby in framework 21.

The mechanism that support member 86 (as shown in Figure 1) outside foundation this folding of the present utility model and expansion positioning mechanism fold-down seat utilization different from the past are exposed to is located two foot levers of the fold-down seat of expansion, but utilize pulling pull bar 5 to drive the cooperation of slide bar 42 and alignment pin 33, so that fold-down seat reaches the purpose that folds or launch, can prevent that not only the user is injured accidentally, in addition, because first support 3 is different with the length of second support 4, when supportting framework 21 overhead, can make framework 21 be interval in ground with an angle of inclination simultaneously, not only allow the user take more comfily, also provide a kind of outward appearance more pleasing innovative construction simultaneously.

Claims

1, a kind of fold-down seat is characterized in that this fold-down seat comprises:

Framework, a sheathed chair cover forms a supporting part;

First support, have two first poles, parallel and compartment of terrain is articulated on this framework with an end, each first pole is provided with the chute of tool first end and second end, and the alignment pin of contiguous this chute second end, but and each alignment pin be stretched on the movable end of this chute with comprising a force side and consistent perforating branches bar and elastic telescopic; And

Second support has two second poles, and parallel and compartment of terrain is articulated on this framework with an end, and each second pole is provided with the slide bar of a slip in this chute;

When this fold-down seat during in a collapse state, this slide bar all is positioned at the first end place of each corresponding chute, when this fold-down seat was converted to this deployed condition by this collapse state, this slide bar slid onto second end and is limited in this second end with this movable end generation effect by this first end.

2, according to claim 1 a described fold-down seat, it is characterized in that each first pole also is provided with inverted U-shaped bar, the both ends of this inverted U-shaped bar are connected on this first pole, and define this chute jointly with first pole.

3,, it is characterized in that each first pole is formed with the sleeve that can supply this alignment pin to plug in contrast to the opposite side of this inverted U-shaped bar, and a spring that can supply alignment pin to wear is set in each sleeve according to claim 2 a described fold-down seat.

4, according to claim 1 a described fold-down seat, it is characterized in that also comprising a pull bar, the two ends of this pull bar are connected with the force side of two alignment pins respectively.

5,, it is characterized in that the root edge of this framework is provided with four U-shaped articulated parts that can supply this first pole and second pole, one end to articulate according to claim 1 a described fold-down seat.