CN205457400U - Buffer structure that inclines is prevented to chair - Google Patents

Abstract

The utility model discloses a buffer structure that inclines is prevented to chair, have protruding stretching in the two seat support fixed plates that warp buffering portion, a combination seat support bottom surface in the fixed base plate outside including an elastic support board to and at least two flexible pillars have a bolt spare, a screw spare and a spacing screw of burying underground in both ends respectively. This bolt spare has buries an end and a convex external screw thread section underground, should bury the end underground has an inner screw hole who is located the terminal surface, this external screw thread section is used for combining in seat support fixed plate bottom surface, this screw spare has a screw and corresponding the combination is used for cushioning support seat support fixed plate and seat support in two deformation buffering portions, the opposite end of this screw is established a path hole and is located path hole outlying no. 1 and keeps off the reason, this spacing screw is worn to organize the path hole and the spiral shell of screw spare and is organized the unlikely destruction of the structure knot fracture that is used for supporting flexible pillar in the inner screw hole of bolt spare.

Description

Chair anti-dumping buffer structure

Technical field

This utility model relates to the technical field of Chair structure, particularly relates to a kind of chair anti-dumping buffer structure.

Background technology

In this construction applications of seat, due to the progress of industrial design technique, the matter taken in offer for seat Sense and comfortableness require to have the trend gradually promoted, and the structure of further flexible buffering designs.

Such as U.S. Publication US2014/0252824A1 patent, its structure is as shown in its FIG.6, mainly at a chair foot Seat plate (the figure of the substrate (label 330 in figure) of (label 310 in figure) upper end and the bottom surface of a seat support (label 210 in figure) Middle label 220) between be provided with four rubber bushings (label 400 in figure)；The most each rubber bushing (label 400 in figure) two ends are tied Close two conjunctions (label 404 in figure) with bolt or screw, in order to provide and substrate (label 330 in figure) seat plate (label 220 in figure) combine, and form structure as shown in its FIG.8, by the bullet of its rubber bushing body (label 402 in figure) Property deformable supports seat support (label 210 in figure) form multidirectional movement flexible buffering.

But, before bulletin, case has the Chair structure of elastic buffer Multidirectional motion as mentioned above, only relies on rubber bushing (figure Middle label 400) single kind of elastic buffer structure, its elastic buffer that can be formed is relatively limited, and cause in use slow Punching is elastic not enough, for one of its shortcoming.

Furthermore, it is illustrated in figure 7 according to case FIG.8 rubber bushing before U.S. Publication US2014/0252824 A1 patent The distressed structure schematic diagram that body 402 illustrates, because the snubber elastomeric of aforementioned rubber lining (label 400 in figure) is not enough, once The multidirectional motion of chair to the stretching strength of rubber bushing (label 400 in figure) more than rubber bushing body (label in figure 402) during the limit that can bear, it is possible to as shown in FIG., rubber bushing body (label 402 in figure) bear incessantly and It is broken into two joints, and loses elastic buffer function, for the two of its shortcoming.

Finally, it is illustrated in figure 8 according to the bulletin another kind of distressed structure of front rubber bushing body 402 depicted in case FIG.8, When the multidirectional motion of chair to the stretching strength of rubber bushing (label 400 in figure) more than rubber bushing body (label in figure 402), time with the combination limit of conjunction (label 404 in figure), it is possible to as shown in FIG., conjunction (label in figure is made 404) it is drawn out and departs from rubber bushing body (label 402 in figure), and lose elastic buffer function, for the three of its shortcoming.

So, before bulletin case have the puzzlement on using of the Chair structure of elastic buffer Multidirectional motion and shortcoming be In:

1, the elastic buffer that only can be formed by single kind of elastic buffer structure is relatively limited, and causes the buffering in use Elastic not enough, cause riding comfort the best with texture.

2, under elastic buffer deficiency situation, when the pulling force of chair motion is more than rubber bushing body (label 402 in figure) Bear the limit and be broken into two joints, and lose elastic buffer function.

3, when the stretching strength of chair Multidirectional motion is more than the combination limit of rubber bushing body and conjunction, combination is made Part is drawn out and departs from rubber bushing body, and loses elastic buffer function.

Utility model content

How to quote front case structure as proof make by single kind of elastic buffer structure snubber elastomeric not enough for above-mentioned, cause and take Comfortableness is the best with texture, and rubber bushing body may be pulled off and buffer loss function, or cause conjunction to be drawn out and With the shortcoming such as rubber bushing body disengaging and carry out improveing utility model, be to be intended to, by this case, the difficulty place that row solves.

Main purpose of the present utility model, is providing a kind of chair anti-dumping buffer structure, is having curved with an elastic supporting plate Two deformation buffer portions of bent deformation are respectively in connection with having the flexible backbone of dilatation, and jointly combine and be supported in a chair foot and Between seat support, through the flexural deformation in deformation buffer portion and the reciprocal action of the dilatation of flexible backbone, seat support shape can be supported Become preferably suspention geometry effect and preferably elastic buffer, be effectively improved and take texture and comfortableness.

An of the present utility model purpose, is providing a kind of chair anti-dumping buffer structure, further in the two of flexible backbone Link with a limited screw between bolt part and thread-hole part that end is buried underground, tie not reason elasticity change in order to support the structure of flexible backbone Shape and destroy fracture.

In order to achieve the above object, this utility model provides a kind of chair anti-dumping buffer structure, including:

One elastic supporting plate, it is incorporated into this chair foot one and fixes substrate, and the two ends of this elastic supporting plate have and convexedly stretch in Two deformation buffer portions outside fixing substrate；

One seat support fixed plate, it is together in a seat support bottom side；And

A plurality of flexible backbone, each flexible backbone has and is embedded in a bolt part at two ends, a thread-hole part, and combine should Bolt part, a limited screw of thread-hole part, this bolt part has to be buried end underground and protrudes from an external screw thread of flexible backbone one end Section, this buries underground to hold has the inner bolt hole being positioned at end face, and this external thread section is incorporated into seat support fixed plate, and this thread-hole part has a spiral shell Hole and correspondence are incorporated into two deformation buffer portions, and this thread-hole part sets a diameter holes and a block edge, block edge position in screw end opposite Between screw and diameter holes and near diameter holes one end, this limited screw wears the diameter holes of group thread-hole part spiral shell group in bolt part Inner bolt hole, this limited screw link the structure of thread-hole part and bolt part and support flexible backbone tie not reason elastic deformation and destroy Fracture, the limited screw of this flexible backbone is retreated in the spiral of inner bolt hole, is formed between screw terminal and the block edge of this limited screw Spacing size variation and adjust according to this flexible backbone buffering deformation.

Further, wherein this elastic supporting plate has correspondence and combines chair foot and fix a plurality of fixing holes of substrate, and respectively Deformation buffer portion is respectively provided with two flexure strips extended to both sides and is provided with combined hole in outer end.

Further, wherein this seat support fixed plate has a reinforcement part of structure thicker, and this reinforcement part is provided with corresponding combination A plurality of reinforcement fixing holes of bolt part external thread section, this seat support fixed plate is provided with two bonding pads being combined with seat support, two This bonding pad respectively has a plurality of combination screw.

Further, wherein this flexible backbone is for waiting number in flexure strip, and the end of burying underground of this bolt part has and is positioned at outer circumferential side One bury underground annular groove in order to flexible backbone strong bonded, this thread-hole part have be positioned at the one of outer circumferential side bury underground annular groove in order to scratch Property pillar strong bonded.

This utility model passes through the flexural deformation in deformation buffer portion and the reciprocal action of the dilatation of flexible backbone, can prop up Support seat support forms preferably suspention geometry effect and preferably elastic buffer, is effectively improved and takes texture and comfortableness.

Accompanying drawing explanation

Fig. 1 is perspective exploded view of the present utility model.

Fig. 2 is this utility model and a chair foot, the schematic perspective view of seat support combination.

Fig. 3 is the combination generalized section of this utility model flexible backbone.

Fig. 4 is combined planar schematic diagram of the present utility model.

Fig. 5 provides the support of seat support elastic buffer to use state signal for this utility model with flexural deformation and dilatation Figure.

Fig. 6 is that this utility model is linked the bolt part supporting flexible backbone two ends with thread-hole part at stretching shape by limited screw The generalized section of state.

Fig. 7 is for illustrate according to case FIG.8 rubber bushing body 402 before U.S. Publication US2014/0252824 A1 patent Distressed structure schematic diagram.

Fig. 8 is according to the bulletin another kind of distressed structure schematic diagram of front rubber bushing body 402 depicted in case FIG.8.

In figure, rubber bushing 400 rubber bushing body 402

Conjunction 404

Chair foot 10 fixes substrate 101

Seat support 20 elastic supporting plate 1

Fixing hole 11 deformation buffer portion 12

Flexure strip 13 combined hole 131

Seat support fixed plate 2 bonding pad 21

In conjunction with screw 211 reinforcement part 22

Reinforcement fixing hole 221 flexible backbone 3

Bolt part 31 buries end 311 underground

External thread section 312 inner bolt hole 313

Bury annular groove 314,324 thread-hole part 32 underground

Screw 321 diameter holes 322

Block edge 323 limited screw 33

Height H before screw terminal 331 flexible backbone is non-stretched

Height H1 after flexible backbone is non-stretched.

Detailed description of the invention

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art This utility model be may be better understood and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.

Refer to shown in Fig. 1 to Fig. 4, this utility model one chair anti-dumping buffer structure, including:

One elastic supporting plate 1, it is incorporated into this chair foot 10 1 and fixes substrate 101, and the two ends of this elastic supporting plate 1 have Convexedly stretch in two deformation buffer portions 12 outside fixing substrate 101.One seat support fixed plate 2, it is together in seat support 20 bottom side.And it is multiple Number flexible backbone 3, each flexible backbone 3 has bolt part 31, thread-hole part 32 being embedded in two ends, and combines this bolt part 31, a limited screw 33 of thread-hole part 32, this bolt part 31 has to be buried end 311 underground and protrudes from the one of flexible backbone 3 one end External thread section 312, this buries end underground and 311 has the inner bolt hole 313 being positioned at end face, and this external thread section 312 is incorporated into seat support and fixes Plate 2, this thread-hole part 32 has a screw 321 and correspondence is incorporated into two deformation buffer portions 12, and this thread-hole part 32 is contrary at screw 321 End sets diameter holes 322 and a block edge 323, and this block edge 323 is between screw 321 and diameter holes 322 and near diameter holes 322 one end, this limited screw 33 wears the diameter holes 322 of group thread-hole part 32 spiral shell group in the inner bolt hole 313 of bolt part 31, and this is spacing Screw 33 link thread-hole part 32 and bolt part 31 and support the structure of flexible backbone 3 tie not reason elastic deformation and destroy fracture.Should The limited screw 33 of flexible backbone 3 is retreated in the spiral of inner bolt hole 313, the screw terminal of this limited screw 33 331 and block edge 323 it Between formed spacing size variation and adjust according to this flexible backbone buffering deform.

In Fig. 1 to Fig. 4, this elastic supporting plate 1 of this utility model has correspondence and combines chair foot 10 and fix answering of substrate 101 Count fixing hole 11, and each deformation buffer portion 12 is respectively provided with two flexure strips 13 extended to both sides and is provided with combined hole in outer end 131；Secondly, this seat support fixed plate 2 has a reinforcement part 22 of structure thicker, and this reinforcement part 22 is provided with corresponding joint bolt part 31 The plural reinforcement fixing hole 221 of external thread section 312, this seat support fixed plate 2 is provided with two bonding pads 21 being combined with seat support 20, and these are two years old Bonding pad 21 respectively has plural number and combines screw 211；Furthermore, this flexible backbone 3 is for waiting number in flexure strip 13, burying of this bolt part 31 If end 311 have be positioned at the one of outer circumferential side bury underground annular groove 314 in order to flexible backbone 3 strong bonded, this thread-hole part 32 has position In the one of outer circumferential side bury underground annular groove 324 in order to flexible backbone 3 strong bonded.

As it is shown in figure 5, elastic supporting plate 2 has diastrophic two deformation buffer portions 12 respectively in connection with having dilatation Flexible backbone 3, and jointly combine and be supported between a chair foot 10 and a seat support 20；With this structural grouping, such as arrow institute in figure Show, when seat support 20 provide take time by the active force of the direction of arrow time, through deformation buffer portion, elastic supporting plate 1 two ends 12 Flexural deformation effect, and the reciprocal action of the dilatation of flexible backbone 3, can support seat support 20 formed preferably suspend in midair several What effect and preferably elastic buffer, be effectively improved and take texture and comfortableness.

As shown in Figure 6, i.e. this utility model links the bolt part being embedded in flexible backbone 3 two ends through a limited screw 33 31 with thread-hole part 32, and with this structural grouping can effectively support the structure of flexible backbone 3 tie not reason elastic deformation and destroy fracture； Coordinating shown in comparison Fig. 3, the height before flexible backbone 3 is non-stretched is H marked in figure, the now screw terminal of limited screw 33 331 keep a distance with the block edge 323 of thread-hole part 32；And in figure 6, in the height of flexible backbone 3 is by figure, the direction of arrow is drawn When power stretches and is extended for H1 marked in figure, screw terminal 331 will be made to abut against this block edge 323, drawn in order to limit flexible backbone 3 The length stretched and avoid being pulled off.Additionally, limited screw 33 is different in the spiral shell group degree of depth of inner bolt hole 313, make limited screw 33 Screw terminal 331 closer or far from block edge 323 and according to this adjust flexible backbone 3 buffering deformation.

And, in figure 6, bury annular groove 314,324 underground through be located at bolt part 31 and thread-hole part 32 outer circumferential side, tie with this Structure in order to cannot depart from the material structure strong bonded at flexible backbone 3 two ends, and further up to durable use multiple enter Step property.

This utility model, has diastrophic two deformation buffer portions 12 with an elastic supporting plate 1 and ties respectively as mentioned above Close the flexible backbone 3 with dilatation, and jointly combine and be supported between a chair foot 10 and a seat support 20, and in flexible backbone Link with limited screw 33 between bolt part 31 and thread-hole part 32 that the two ends of 3 are buried underground, and at this bolt part 31 and thread-hole part 32 It is respectively equipped with and is positioned at the one of outer circumferential side and buries annular groove 314,324 underground, with this structural grouping, can really break through and there is elastic buffer at present The puzzlement on using of the existing habit formula structure of seat and shortcoming, and can reach advantages below:

1, through the flexural deformation in deformation buffer portion 12 and the reciprocal action of the dilatation of flexible backbone 3, chair can be supported Seat 20 forms preferably suspention geometry effect and preferably elastic buffer, is effectively improved and takes texture and comfortableness.

2, the bolt part 31 buried underground at flexible backbone 3 two ends and thread-hole part 32 are linked by a limited screw 33, in order to support The structure of flexible backbone 3 tie not reason elastic deformation and destroy fracture.

3, bury annular groove 314,324 underground by be located at bolt part 31 and thread-hole part 32 outer circumferential side, in order to flexible backbone 3 jail Consolidation conjunction cannot depart from, and reaches the multiple progressive of durable use.

Embodiment described above is only the preferred embodiment lifted by absolutely proving this utility model, this utility model Protection domain be not limited to this.The equivalent that those skilled in the art are made on the basis of this utility model substitutes or becomes Change, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.

Claims (4)

1. a chair anti-dumping buffer structure, it is characterised in that including:

One elastic supporting plate, it is incorporated into this chair foot one and fixes substrate, and the two ends of this elastic supporting plate have convexedly stretch in fixing Two deformation buffer portions outside substrate；

One seat support fixed plate, it is together in a seat support bottom side；And

A plurality of flexible backbone, each flexible backbone has and is embedded in a bolt part at two ends, a thread-hole part, and combines this bolt Part, a limited screw of thread-hole part, this bolt part has to be buried end underground and protrudes from an external thread section of flexible backbone one end, should Bury underground end there is the inner bolt hole being positioned at end face, this external thread section is incorporated into seat support fixed plate, this thread-hole part have a screw and Correspondence is incorporated into two deformation buffer portions, and this thread-hole part sets a diameter holes and a block edge in screw end opposite, and block edge is positioned at spiral shell Between hole and diameter holes and near diameter holes one end, this limited screw wears the diameter holes of group thread-hole part spiral shell group in bolt part Screw, this limited screw link the structure of thread-hole part and bolt part and support flexible backbone tie not reason elastic deformation and destroy disconnected Splitting, the limited screw of this flexible backbone is retreated in the spiral of inner bolt hole, between being formed between screw terminal and the block edge of this limited screw Away from size variation and adjust according to this flexible backbone buffering deformation.

2. chair anti-dumping buffer structure as claimed in claim 1, it is characterised in that wherein this elastic supporting plate has corresponding knot Close chair foot and fix a plurality of fixing holes of substrate, and each deformation buffer portion is respectively provided with two flexure strips extended to both sides and in outward End is provided with combined hole.

3. chair anti-dumping buffer structure as claimed in claim 1, it is characterised in that wherein this seat support fixed plate has thickening knot One reinforcement part of structure, this reinforcement part is provided with a plurality of reinforcement fixing holes of corresponding joint bolt part external thread section, and this seat support is fixed Plate is provided with two bonding pads being combined with seat support, and two these bonding pads respectively have a plurality of combination screw.

4. chair anti-dumping buffer structure as claimed in claim 2, it is characterised in that wherein this flexible backbone is for waiting number in elasticity Sheet, this bolt part bury underground end have be positioned at the one of outer circumferential side bury underground annular groove in order to flexible backbone strong bonded, this thread-hole part Have be positioned at the one of outer circumferential side bury underground annular groove in order to flexible backbone strong bonded.