CN205018601U

CN205018601U - Folding chair

Info

Publication number: CN205018601U
Application number: CN201520755249.3U
Authority: CN
Inventors: 李晨晨
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-26
Filing date: 2015-09-26
Publication date: 2016-02-10
Anticipated expiration: 2025-09-26

Abstract

The utility model discloses a folding chair belongs to the seat, constitutes by a back of the chair, a chair cushion and a support, the back of the chair have two root length feet and many roots bone, space, every void formation is in between the two adjacent ribs or between rib and the long foot. The chair cushion have preceding, two poles of back and a plurality of straight boards, every straighten the board pass through the space of the back of the chair and connect in the front, between two poles of back. The support include two short feet, poles were and rotatable before these short feet were connected, every short foot central authorities' long foot of pin joint and reciprocating motion are in launching, roll over between two positions of receipts, two protrusions, every protrusion are formed at the neighbouring top department in short foot edge, the utility model discloses when expanding the position, short foot interlocks in long foot, and the back of the chair is kept away from to related preceding pole, makes the chair cushion keep roughly horizontality, makes the protrusion part roughly flush with preceding peak of the staff face, effectively solves traditional folding chair's shortcoming.

Description

A kind of folding seat

Technical field

The utility model belongs to seat.

Background technology

The structure of chair is generally fixed and can not adjust, and except easy fatigue, also can affect operating efficiency.Traditional folding seat has two pairs of pin, and often pair of pin is made up of long and short bipod, the long pin of short pin pivot joint and reciprocable in expansion, fold between two positions.When expanded position, a chair cushion is moved by short tape and levels off to level and the weight that can carry user.But short pin top exceeds chair cushion, the both legs of restriction user close up between the top of two short pin, except sitting posture is uncomfortable, also easily produce fatigue.If leg rests on short pin top by user, blood vessel or neural to be oppressed by short pin, not only blood flow has some setbacks, oxygen supply quantity not sufficient, the phenomenon such as even cause leg tingle, weak.

Utility model content

Not high in order to overcome existing folding seat comfort level, baroque deficiency, the utility model provides a kind of folding seat, and this kind of folding seat not only folding storage is convenient, and improves the comfort level of seat.

The utility model solves the technical scheme that its technical problem adopts: a kind of folding seat, comprising: folding seat body, the chair back, chair cushion, is characterized in that: the described chair back comprises two long pin, and one is anchored on the crossbeam above two long pin, two main shafts, every root main shaft protrudes from corresponding long outside of foot; One is parallel to the stage casing bar of crossbeam in conjunction with two long pin; Many roots bone, each rib two ends are connecting cross beam and stage casing bar respectively; Multiple space, each space is formed between adjacent two root bones or between rib and long pin; One chair cushion, it comprises parallel forward and backward two bars; Multiple straight plate, each straight plate is connected between forward and backward two bars by the space of the chair back; Two countershafts, and described countershaft protrudes from the difference end of described front bar; And a support, it comprises two short pin, and each short pin top connects the countershaft of chair cushion and rotatable, and described short pin central authorities connect main shaft and relatively long pin moves back and forth in expansion, folds between two positions; Two protrusions, each protrusion is formed at adjacent top end place, short pin edge.

Above-mentioned a kind of folding seat, is characterized in that: described protrusion is triangular in shape, and it comprises: an inclined-plane, a plane and are formed at tiltedly, the summit of two face habitats, and described plane is than the top of inclined-plane near short pin; When expanded position, described plane is substantially flush with front bar end face.

Above-mentioned a kind of folding seat, is characterized in that: described short pin edge is convex curved surface around top end, and described plane extends certain length along a tangential direction from protrusion summit toward short pin top.

The beneficial effects of the utility model are when expanded position, and described short pin crisscrosses long pin, and related front bar, away from the chair back, makes chair cushion keep approximate horizontal state, make protrusion local substantially flush with front bar end face, effectively solve the shortcoming of traditional type folding seat.

Accompanying drawing explanation

Accompanying drawing 1 is the constitutional diagram of preferred embodiment of the present utility model,

Fig. 2 is exploded view of the present utility model,

Fig. 3,4 is the utility model continuous print operation charts,

In figure, 10. folding seat, 20. chair back, 21. long pin, 22. crossbeams, 23. main shafts, 24. ribs, 25. bottom surfaces, 26. stage casing bars, 28. base plates, 29. spaces, 30. chair cushions, 31. front bars, 32. rear bars, 33. side levers, 34. straight plates, 35. countershafts, 36. hornblocks, 40. supports, 41. connecting rods, 42. short pin, 43. pivot connected slots, 44. engagement grooves, 45. circular grooves, 46. bottom surfaces, 47. tops, 48. edges, 50. protrusions, 52. inclined-planes, 54. planes, 56. summits, 60. supporting surfaces.

Detailed description of the invention

Detailed description of the invention of the present utility model is, as shown in the figure:

Embodiment 1 one kinds of folding seat, described folding seat body 10 is made up of the chair back 20, chair cushion 30 and a support 40, and described chair cushion 30 and the chair back 20 interlock, determine that folding seat body 10 performs continuous print action.The described chair back 20 is made up of two long pin 21, crossbeams 22, many roots bone 24, stage casing bar 26 and base plates 28.The symmetrical shape of these long pin 21 and have flat bottom surface 25, allows that crossbeam 22, stage casing bar 26 and base plate 28 are embedded in above long pin 21 in parallel with each other, central authorities and Lower Half.Each long pin 21 is bending, and at long pin 21 main shaft 23 protruding outside, it is positioned at same axis (drawing does not show) for good with the main shaft 23 of an another long pin 21.In addition, each rib 24 two ends are connecting cross beam 22 and stage casing bar 26 respectively, between adjacent two ribs 24 or form a space 29 between rib 24 and long pin 21.

Described chair cushion 30 comprises forward and backward two bar 31,32, two side levers 33, multiple straight plate 34, two countershaft 35 and two hornblocks 36.Wherein, forward and backward two bars 31,32 are embedded in side lever 33 two ends substantially in parallel, are built into the frame being similar to quadrangle.Each straight plate 34 is by the corresponding space 29 of the chair back 20, and its two ends are embedded in forward and backward two bars 31,32 respectively, make between adjacent two straight plates 34 or directly keep certain distance between plate 34 and side lever 33.In addition, these countershafts 35 are positioned at same axis (drawing does not show) and the difference end of outstanding front bar 31; Each hornblock 36 is anchored on the adjoiner outside front bar 31 inner edge and side lever 33.

Described support 40 has two connecting rod 41 and two short pin 42, and each connecting rod 41 has two ends, often holds embedding one to be formed at the engagement groove 44 of short pin 42, makes two connecting rods 41 keep almost parallel state.Each short pin 42 has pivot connected slot 43 and a circular groove 45, and forms a protrusion 50 at adjacent top end 47 place, short pin 42 edge 48.Described pivot connected slot 43 is formed at short pin 42 central authorities, and they are the corresponding main shaft 23 of energy pivot joint between two engagement grooves 44, supports that the relatively long pin 21 of short pin 42 moves back and forth in expansion, folds between two positions.Described circular groove 45 is formed at short pin 42 adjacent top end 47 place, and itself and pivot connected slot 43, engagement groove 44 are positioned at the same face of short pin 42, holds corresponding countershaft 35 and maintains support 40 and mutually rotate with chair cushion 30.In addition, described short pin 42 edge 48 is convex curved surface around top 47 place.

Described protrusion 50 is roughly triangular in shape, and it comprises, and inclined-plane 52, plane 54 and is formed at tiltedly, the summit 56 of two face 52,54 habitats.Wherein, described plane 54 extends certain length along a tangential direction from protrusion 50 summit 56 toward short pin 42 top 47, and it is than the top 47 of inclined-plane 52 closer to short pin 42.

As shown in Figure 3, when folding storage position, long and short two pin 21,42 are roughly side-by-side, and described front bar 31 is near the chair back 20, and related rear bar 32 convergence crossbeam 22, facilitates folding seat body 10 to stand on a supporting surface 60.

As shown in Figure 4, when expanded position, described short pin 42 crisscrosses long pin 21, and related front bar 31 is away from the chair back 20, until rear bar 32 is hampered by rib, makes chair cushion 30 keep approximate horizontal state.This moment, the bottom surface 25,46 of long and short two pin 21,42 contacts supporting surface 60, is beneficial to folding seat body 10 and carries human body weight.Because short pin 42 top 47 does not exceed chair cushion 30, so protrusion 50 local (typically referring to plane 54) is substantially flush with front bar end face, both restriction can not be produced to the sitting posture of user, also excessively can not oppress blood vessel or the nerve of human body, effectively solve the shortcoming of traditional type folding seat.When chair cushion 30 moves from expanded position toward folding position, described hornblock 36 offsets with long pin 21, makes front bar 31 and long pin 21 or separated by a distance between 31 and rib, avoids crushing human body.

Claims

1. a folding seat, comprise: folding seat body (10), the chair back (20), chair cushion (30), support (40), is characterized in that: the described chair back (20) comprises two long pin (21), and one is anchored on the crossbeam (22) above two long pin (21), two main shafts (23), every root main shaft (23) protrudes from corresponding long pin (21) outside; One is parallel to the stage casing bar (26) of crossbeam (22) in conjunction with two long pin (21); Many roots bone (24), each rib (24) two ends are connecting cross beam (22) and stage casing bar (26) respectively; Multiple space (29), each space (29) are formed between adjacent two root bones (24) or between rib (24) and long pin (21); One chair cushion (30), it comprises parallel forward and backward two bars (31,32); Multiple straight plate (34), each straight plate (34) is connected between forward and backward two bars (31,32) by the space (29) of the chair back (20); Two countershafts (35), and described countershaft (35) protrudes from the difference end of front bar (31); And a support (40), it comprises two short pin (42), each short pin (42) top (47) connects the countershaft (35) of chair cushion (30) and rotatably, described short pin (42) central authorities connect main shaft (23) and relatively long pin (21) moves back and forth in expansion, folds between two positions; Two protrusions (50), each protrusion (50) is formed at short pin (42) edge (48) adjacent top end (47) place.

2. a kind of folding seat according to claim 1, it is characterized in that: described protrusion (50) is triangular in shape, it comprises: an inclined-plane (52), a plane (54) and are formed at tiltedly, the summit (56) of two plane (52,54) habitats, the top (47) of described plane (54) short pin (42) more close than inclined-plane (52); When expanded position, described plane (54) is substantially flush with front bar (31) end face.

3. a kind of folding seat according to claim 2, it is characterized in that: described short pin (42) edge (48) is convex curved surface around top (47) place, described plane (54) extends certain length along a tangential direction from protrusion (50) summit (56) toward short pin (42) top (47).