CN105380434B - Fold mechanism and the chair using the fold mechanism - Google Patents
Fold mechanism and the chair using the fold mechanism Download PDFInfo
- Publication number
- CN105380434B CN105380434B CN201510959629.3A CN201510959629A CN105380434B CN 105380434 B CN105380434 B CN 105380434B CN 201510959629 A CN201510959629 A CN 201510959629A CN 105380434 B CN105380434 B CN 105380434B
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- China
- Prior art keywords
- axle sleeve
- chair
- fixing bolt
- tail end
- central axle
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C4/00—Foldable, collapsible or dismountable chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Fold mechanism, including the main body associated with the fold mechanism and accessory body, in addition to a central axle sleeve, tail end axle sleeve and fixing bolt, fixing bolt sequentially pass through central axle sleeve and tail end axle sleeve；Central axle sleeve body periphery to axle center Unequal distance and axle center are provided with the axis hole through body；Tail end axle sleeve body axle center is provided with the internal thread screw fixed for fixing bolt；Central axle sleeve is embedded in main body, and fixing bolt is located at accessory body side, tail end axle sleeve is embedded opposite side into accessory body.The present invention makes stress point be transferred to fixing bolt by central axle sleeve, and fixing bolt is dispersed on accessory body so that stress itself is reduced, and intensity is high, and structure is more stable, and service life is also grown.The invention also discloses the chair using the fold mechanism.
Description
Technical field
The present invention relates to one kind to be used for fold mechanism, and further relates to the chair using the fold mechanism, belongs to IPC classification
A47 technical fields.
Background technology
With the growth of population, available space per capita（Including house and trip）It is less and less, and live into
This is also constantly being added fuel to the flames so that portable and folding daily necessities becomes more and more essential, such as folding
Desk, chair, stool, sofa, bed etc..
The fold mechanism and product of these fold furnitures become increasingly to enrich with the activity of the wisdom of humanity.But
Market economy it is leading under, economic behaviour makes on product price differentiation is more serious, and workinprocess cost is held, most consumption
Person is ready to receive the product of low price, and producer also uses low price strategy mostly in competition, the product one of low price under this overall situation
As for using low cost material, the cost of inexpensive structure and other relative moderates, therefore, using plastics as material
Product that matter makes and with simple fold mechanism often captures the dominant contribution in market, and this kind of product is mainly by plastics
The body of product is fabricated to, and fold mechanism is fabricated to plastic material, or uses metal material with simpler, relatively straightforward
Fold mechanism is made by bindiny mechanism, as bolt is fixed through plastics projection in opposite side with nut, so that the body of plastics is more
Individual part is folded, and the folding product stability under these fold mechanisms, which differs, to be set, and for such product, is gone out again on the market
A variety of improved structures are carried out.
Such as China Patent Publication No.：CN203506096U discloses a kind of folding chairs of plastic production, and the chair will be rolled over
Folded mechanism is combined into one with chair, substantially an inherently big fold mechanism, referring to Fig. 1, including chair face（A1）With
Chair back（A2）, chair back is connected with front leg strut（A3）, the rear portion in chair face and front leg strut（A3）Middle part be slidably connected,
Anterior and rear support leg（A4）Upper end be hinged, front leg strut and rear support leg intersect, and be hinged in the middle part of both setting, after described
Supporting leg is provided with the strengthening mechanism for keeping seat not hypsokinesis.Rear support leg（A4）It is upper close with chair face（A1）Hinged place be provided with branch
Support is raised（A5）, the bottom in the chair face is pressed in support protrusion.Chair bottom be provided with corresponding support protrusion pad
Block（A6）, the reinforcing strip being located on rear support leg is connected with support protrusion（A7）.Solves chair folding by being wholely set
Folded mechanism in folding and causes seat unstable technical problem when using, but actually chair face stress is excessive, it is known that support
It is raised（A5）, cushion block（A6）And reinforcing strip（A7）The power being finally subject to still passes to front leg strut（A3）With rear support leg（A4）Phase
At friendship, chair is plastic production, and final stress point is identical with pin joint, and pin joint is simply simple be hinged, and actual be damaged just is deposited
In possibility, cause its structural stability with regard to poor.
And for example China Patent Publication No.：A kind of plastic folding table disclosed in CN20294639U, refering to Fig. 2, including desktop
And feet, feet include the left and right support feet that middle part is hinged（A11、A12）, in described left and right support feet（A11、A12）'s
Upper end is respectively articulated with left and right support link（A21、A22）, desktop is also divided into left and right desktop（A31、A32）, left and right desktop
（A31、A32）While it is separately fixed at left and right support link（A21、A22）On, from support link and support feet in support link
Hinged place to reserving one section of supporting part between desktop edge（A4）.Desktop, support link and support feet are by plastic material system
Into.The fold mechanism is substantially also integrated with desk, left and right desktop（A31、A32）The power being subject to is through left and right support link
（A21、A22）It is delivered to left and right support feet（A11、A12）Intersection, therefore, the intersection pin joint is with stress point also to be same
Point, pin joint is also simple be hinged, when desktop stress reaches certain value, is damaged, its Stability Analysis of Structures possible there is also difference
Property is poor.
The content of the invention
The present invention is primarily to solve existing using plastics as daily necessities fold mechanisms such as the folding seat of material, folding tables
The technical problem of stability difference.
The technical scheme that the present invention to be solved problem is as follows：
Fold mechanism, including the main body associated with the fold mechanism and accessory body, it is characterised in that：Also include a central shaft
Set, tail end axle sleeve and fixing bolt, fixing bolt sequentially pass through central axle sleeve and tail end axle sleeve；
Central axle sleeve, body periphery to axle center Unequal distance and axle center are provided with the axis hole through body；
Tail end axle sleeve, body axle center are provided with the internal thread screw fixed for fixing bolt；
Be additionally provided with axially distributed multiple grooves on the outer sleeve body of central axle sleeve or/and tail end axle sleeve, the groove it
Between spacing can be zero；
Central axle sleeve is embedded in main body, and fixing bolt is located at accessory body side, tail end axle sleeve is embedded opposite side into accessory body；
Central axle sleeve, tail end axle sleeve and fixing bolt are metal material.
A front-end shaft sleeve is additionally provided between central axle sleeve and fixing bolt, front-end shaft sleeve is embedded on accessory body.
The groove can use at least one raised replacement.
Body periphery to the axle center of the central axle sleeve can be equidistant.
Using the chair of the fold mechanism, including the chair back, seat and forward and backward chair leg, it is characterised in that：Prolong chair back side
Stretch to form preceding chair leg, the chair back leans against has a space close to side；
The central axle sleeve A that the back leg end that fixing bolt A is placed through in space is embedded, is fixed on space opposite side
Tail end axle sleeve A in the extension of chair back side；
The middle part of back leg is provided with blend stop, and seat rear lower surface at least extends one and is embedded with central axle sleeve B's
Fixing end, fixing bolt B pass through extending part, the central axle sleeve B of blend stop, are fixed on the tail end being embedded in blend stop extension projection
Axle sleeve B；
The middle part of preceding chair leg, which is provided with, makes seat keep the stable impetus puted forth effort.
The chair back leans against part and is embedded with front-end shaft sleeve.
The impetus be a side extend and on hook, to should hook bottom seat be provided with a groove.
Beneficial effects of the present invention are as follows：
Fixing bolt, central axle sleeve, tail end axle sleeve are metal material, the present invention by fixing bolt sequentially pass through accessory body,
Be embedded in central axle sleeve of the main body upper periphery away from axle center Unequal distance, be embedded tail end axle sleeve into other end accessory body, make main body with it is secondary
Body produces hinge-effect, is formed and is hinged, the central axle sleeve body and groove of all back gauge axle center Unequal distance can be more firm
Central axle sleeve is set to be integrally formed with main body, so that stress point is transferred to fixing bolt by central axle sleeve, fixing bolt disperses
To accessory body so that stress itself is reduced, and intensity is high, and structure is more stable, and service life is also grown.
The chair that the present invention is applied to is because the fold mechanism of the present invention so that and suffered power can uniformly transfer,
Load ability is strong, but because between fold mechanism three gap it is small, stability is good, using it is long be also not in displacement, can strengthen
The quality of inexpensive plastic product, so as to improve the service life of such plastic living articles for use, the market competitiveness of enterprise.
Brief description of the drawings：
Fig. 1 is prior art one shown in background technology；
Fig. 2 is prior art two shown in background technology；
Fig. 3 is the structural representation of fold mechanism of the present invention；
Fig. 4 is Fig. 3 structure decomposition figure；
Fig. 5 is the structural representation of another embodiment of fold mechanism of the present invention；
Fig. 6 is Fig. 5 structure decomposition figure；
Fig. 7 is the structural representation of chair of the present invention；
Fig. 8 is Fig. 7 partial enlarged drawing；
Fig. 9 is the structural representation of another angles of Fig. 7；
Embodiment：
Make further details of elaboration to the present invention below in conjunction with the accompanying drawings；
Refering to Fig. 3 to Fig. 6, embodiment one, fold mechanism, including the main body associated with the fold mechanism（Figure is not marked）
And accessory body（Figure is not marked）, in addition to a central axle sleeve（1）, tail end axle sleeve（2）And fixing bolt（3）, fixing bolt（3）Successively
Through central axle sleeve（1）And tail end axle sleeve（2）；
Central axle sleeve（1）, body periphery to axle center Unequal distance and axle center are provided with the axis hole through body（11）；Axis hole（11）
Inner wall smooth, in some cases, the axis hole（11）Inwall is additionally provided with oil groove.
Body periphery to axle center Unequal distance, body shape can be made to show as quadrangle, triangle, and as five-pointed star formula
Polygon.
Tail end axle sleeve（2）, body axle center is provided with the internal thread screw fixed for fixing bolt（21）；The screw can be to pass through
Perforation can also be blind hole, be preferably blind hole.
In central axle sleeve（1）Or/and tail end axle sleeve（2）Outer sleeve body on be additionally provided with axially distributed multiple grooves（5）,
The groove（5）Between spacing can be zero；When spacing is zero, groove（5）It can show as joining end to end, that is, be formed spiral helicine
Groove, when spacing is not zero, equidistant and Unequal distance is could be arranged to again, it is overall just to regard center such as with the equidistant spacing of 2cm one
Axle sleeve（1）Depending on covering body length, Unequal distance can be equidistant one of 1cm afterwards again with equidistant one of 2cm, then with 3cm equidistant one
Individual, above numerical value simply enumerates, and is not to limit.
Certainly, groove（5）It can put and set, can also ring-type setting.Point is set and can also be randomly provided, and the point is set as one
Individual radius is the independent depression of certain geometrical shape, and it is one section of longer groove that the ring-type, which is arranged to be arranged on jacket surface,.
Central axle sleeve（1）It is embedded in main body（Figure is not marked）On, fixing bolt（3）It is located at accessory body side, tail end axle sleeve（2）It is embedding
If enter accessory body（Figure is not marked）Opposite side；
Central axle sleeve（1）, tail end axle sleeve（2）And fixing bolt（3）For metal material.
In the present embodiment, main body and accessory body are a relative address, and do not lie in and limit to some plastic product
Some position, is simply used as central axle sleeve（1）With fixing bolt（3）With tail end axle sleeve（2）The plastic product portion fixed respectively
The variability call of position, two or more parts of plastic product are made to produce be hinged and then foldable, formation fold mechanism with this.
Embodiment two, based on embodiment one, in central axle sleeve（1）With fixing bolt（3）Between be additionally provided with a front end
Axle sleeve（4）, front-end shaft sleeve（4）It is embedded in accessory body（Figure is not marked）On.
In the present embodiment, front-end shaft sleeve（4）Close to central axle sleeve（1）Side be provided with, with fixing bolt（3）Screw head phase
The step recessed to inner side of matching（41）.
Embodiment three, based on embodiment one, the groove（5）At least one raised replacement can be used.In this implementation
In example, groove（5）Setting can be mixed with projection, can also be replaced entirely by projection.Also, the projection can arrange in the shape of a spiral
Cloth in the outer surface of body, can also certain intervals perpendicular to axial arranging, can be with branch, can also ring-type.
Embodiment four, based on embodiment one, body periphery to the axle center of the central axle sleeve can be equidistant.
In embodiment one to three, described tail end axle sleeve（2）It also is provided with groove（5）, the front-end shaft sleeve（4）It also is provided with
Groove（5）, and tail end axle sleeve（2）, front-end shaft sleeve（4）Also have and central axle sleeve（1）Body has identical profile.
Refering to Fig. 7 to Fig. 9, the chair of the fold mechanism, including the chair back are used（1A）, seat（1B）And forward and backward chair leg
（1C、1D）, the chair back（1A）Side extends to form preceding chair leg（1C）, the chair back（1A）Lean against（1E）There is a space close to side
（1F）；
Fixing bolt A（1G）It is placed through space（1F）Interior back leg（1D）The central axle sleeve A that end is embedded（1H）,
It is fixed on space（1F）The opposite side chair back（1A）Tail end axle sleeve A in the extension of side（1I）；
Back leg（1D）Middle part be provided with blend stop（1J）, seat（1B）Rear lower surface at least extends one and is embedded with
Central axle sleeve B（1K）Fixing end（1L）, fixing bolt B（1M）Through blend stop（1J）Extending part（1N）, central axle sleeve B
（Diagram mark）, it is fixed on and is embedded into blend stop（1J）Extension is raised（1O）Interior tail end axle sleeve B（Diagram mark）；
Preceding chair leg（1C）Middle part be provided with make seat（1B）Keep the stable impetus puted forth effort（1Q）.
The chair back（1A）Lean against part and be embedded with front-end shaft sleeve（Diagram mark）.
The impetus（1Q）Hook on for side extension, i.e. side is to extension above level, to that should hook
Shape body bottom seat is provided with a groove.In open mode, hook is inserted in groove, it is ensured that the downward stability of seat.
A reinforcement is additionally provided with the outside of the cell wall of groove.It can be made to be not susceptible to displacement in the lateral direction by reinforcement.
Folding seat of the present invention can manufacture according to the following steps：
The first step, central axle sleeve A is first assembled, i.e., fixing bolt A is sequentially passed through into central axle sleeve A, tail end axle sleeve A is formed
One；
Second step, it is same that the fixing bolt A assembled, central axle sleeve A and tail end axle sleeve A are placed on the chair back, rear chair leg
When the mould that is molded in, injection molding；
3rd step, central axle sleeve B is placed in seat mould, with seat integrated injection molding；
4th step, the seat after shaping is placed with the chair back to be matched, and fixing bolt B sequentially passes through prolonging on rear chair leg shelves bar
Extending portion position, through fixing bolt B, the tail end axle sleeve B of the extension projection of shelves bar and its internal integrated injection molding, that is, complete a kind of folding
The production of folding chair.
Above-described chair, because its pin joint and the strong point are to be not all same position, and the fold mechanism used
Central axle sleeve and tail end axle sleeve are passed through using the fixing bolt of metal, makes uniform force transmission, load ability is strong, and because
Gap is small between three, and stability is good, using it is long be also not in displacement, and by the part of fold mechanism with to be used
Product can be strengthened the quality of inexpensive product, so as to improve the service life of such plastic living articles for use, be made by injection molding
Enterprise's lifting competitiveness of product in market and can makes consumer obtain more quality-high and inexpensive good product.
In addition, the deformation as above-described embodiment, foldable structure of the invention can be applied to other furniture such as desk.
The part that its described central axle sleeve connects or the main body of integrated injection molding or accessory body are other furniture such as desk,
Accessory body is by front-end shaft sleeve or directly then passes through the central axle sleeve in main body through part ennation with fixing bolt and terminates in accessory body
Tail end axle sleeve in other end ennation.
Claims (3)
1. using the chair of fold mechanism, including the chair back, seat and forward and backward chair leg, fold mechanism is added on chair, it is special
Sign is：The associated main body of fold mechanism and accessory body, fold mechanism include a central axle sleeve, tail end axle sleeve and fixed spiral shell
Bolt, fixing bolt sequentially pass through central axle sleeve and tail end axle sleeve；
Central axle sleeve, body periphery to axle center Unequal distance and axle center are provided with the axis hole through body；
Tail end axle sleeve, body axle center are provided with the internal thread screw fixed for fixing bolt；
Axially distributed multiple grooves are additionally provided with the outer sleeve body of central axle sleeve or/and tail end axle sleeve, between the groove
Spacing can be zero；
Central axle sleeve is embedded in main body, and fixing bolt is located at accessory body side, tail end axle sleeve is embedded opposite side into accessory body；
Central axle sleeve, tail end axle sleeve and fixing bolt are metal material；
Chair back side extends to form preceding chair leg, and the chair back leans against has a space close to side；
The central axle sleeve A that the back leg end that fixing bolt A is placed through in space is embedded, it is fixed on the space opposite side chair back
Tail end axle sleeve A in the extension of side；
The middle part of back leg is provided with blend stop, and seat rear lower surface at least extends a fixation for being embedded with central axle sleeve B
End, fixing bolt B pass through extending part, the central axle sleeve B of blend stop, are fixed on the tail end axle sleeve being embedded in blend stop extension projection
B；
The middle part of preceding chair leg, which is provided with, makes seat keep the stable impetus puted forth effort.
2. chair according to claim 1, it is characterised in that：The chair back leans against part and is embedded with front-end shaft sleeve.
3. chair according to claim 2, it is characterised in that：The impetus be a side extend and on hook,
To should hook bottom seat be provided with a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510959629.3A CN105380434B (en) | 2015-12-21 | 2015-12-21 | Fold mechanism and the chair using the fold mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510959629.3A CN105380434B (en) | 2015-12-21 | 2015-12-21 | Fold mechanism and the chair using the fold mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105380434A CN105380434A (en) | 2016-03-09 |
| CN105380434B true CN105380434B (en) | 2018-01-23 |
Family
ID=55413681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510959629.3A Active CN105380434B (en) | 2015-12-21 | 2015-12-21 | Fold mechanism and the chair using the fold mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105380434B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2531064A1 (en) * | 1974-07-15 | 1976-01-29 | Hille Int Ltd | FOLDING LEGS FOR FURNITURE |
| US5501541A (en) * | 1993-08-09 | 1996-03-26 | Gomes; Daniel | Flexible coupling device |
| CN200945325Y (en) * | 2006-09-17 | 2007-09-12 | 青岛三硕钢塑制品有限公司 | Foldable jumping bed |
| CN203016334U (en) * | 2013-01-07 | 2013-06-26 | 浙江天鸿竹木有限公司 | Folding chair with backrest |
| CN205385998U (en) * | 2015-12-21 | 2016-07-20 | 台州市黄岩百业模具厂 | Folding mechanism and use this folding mechanism's chair |
-
2015
- 2015-12-21 CN CN201510959629.3A patent/CN105380434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2531064A1 (en) * | 1974-07-15 | 1976-01-29 | Hille Int Ltd | FOLDING LEGS FOR FURNITURE |
| US5501541A (en) * | 1993-08-09 | 1996-03-26 | Gomes; Daniel | Flexible coupling device |
| CN200945325Y (en) * | 2006-09-17 | 2007-09-12 | 青岛三硕钢塑制品有限公司 | Foldable jumping bed |
| CN203016334U (en) * | 2013-01-07 | 2013-06-26 | 浙江天鸿竹木有限公司 | Folding chair with backrest |
| CN205385998U (en) * | 2015-12-21 | 2016-07-20 | 台州市黄岩百业模具厂 | Folding mechanism and use this folding mechanism's chair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105380434A (en) | 2016-03-09 |
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