CN205385998U - Folding mechanism and use this folding mechanism's chair - Google Patents
Folding mechanism and use this folding mechanism's chair Download PDFInfo
- Publication number
- CN205385998U CN205385998U CN201521067135.6U CN201521067135U CN205385998U CN 205385998 U CN205385998 U CN 205385998U CN 201521067135 U CN201521067135 U CN 201521067135U CN 205385998 U CN205385998 U CN 205385998U
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- Prior art keywords
- axle sleeve
- fixing bolt
- tail end
- chair
- central axle
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Abstract
Folding mechanism includes main part and the accessory body in relevancy with this folding mechanism, still includes a central hub, and tail end axle sleeve and fixing bolt, fixing bolt pass central hub and tail end axle sleeve in proper order, the central hub cover body is peripheral, and equidistance and axle center are not equipped with the shaft hole of running through set body to the axle center, the tail end axle sleeve cover axon heart is equipped with the internal thread screw that supplies fixing bolt fixed, central hub inlays and establishes in the main part, and fixing bolt establishes on one side of the accessory body, the tail end axle sleeve inlays the opposite side of establishing into the accessory body. The utility model discloses make the stress point pass through central hub and transmit to fixing bolt, on fixing bolt dispersion to the accessory body for atress own reduces, and intensity is high, and the structure is more stable, and life is also long. The utility model also discloses an use this folding mechanism's chair.
Description
Technical field
This utility model relates to a kind of for fold mechanism, and also is directed to use with the chair of this fold mechanism, belongs to IPC and classifies A47 technical field.
Background technology
Growth along with population, available space (including house and trip) is more and more less per capita, and living cost is also constantly being added fuel to the flames so that portable and folding the articles for daily use becomes more and more essential, such as folding table, chair, stool, sofa, bed etc..
The fold mechanism of these fold furnitures and product, along with the activity of the wisdom of humanity, become increasingly to enrich.nullBut market economy leading under，Economic behaviour makes product price differentiation comparatively serious，On workinprocess cost is held，Most consumer is ready to accept product at a low price，Producer also mostly adopts low price strategy in competition，Under this overall situation, what generally speaking the product of low price adopted is the material of low cost，The cost of the structure of low cost and other relative moderate，Therefore，That make with plastics for material and with simple fold mechanism product often captures the dominant contribution in market，This series products is mainly become the body of product by plastic production，It is fabricated to fold mechanism again with plastic material，Or adopt metal material with simpler、Fold mechanism is made by relatively straightforward bindiny mechanism，As bolt is fixed with nut through plastics projection at opposite side，So that the multiple part of the body of plastics folds，Folding product stability under these fold mechanisms differs and reserves，For this series products，Out multiple improvement structure again on the market.
Such as China Patent Publication No.: CN203506096U discloses the folding chair of a kind of plastic production, fold mechanism and chair are united two into one by this chair, a substantially inherently big fold mechanism, referring to Fig. 1, including chair face (A1) and chair back (A2), chair back is connected with front leg strut (A3), the middle part of the rear portion in chair face and front leg strut (A3) is slidably connected, the anterior upper end thereof with rear support leg (A4), front leg strut and rear support leg intersect, both middle parts are hinged setting, described rear support leg is provided with the strengthening mechanism keeping seat not hypsokinesis.Rear support leg (A4) is upper is provided with support protrusion (A5) near the hinged place with chair face (A1), and the bottom in described chair face is pressed in support protrusion.Chair bottom be provided with the cushion block (A6) of corresponding support protrusion, support protrusion is connected with the reinforcing strip (A7) being located on rear support leg.The technical problem that chair fold mechanism makes seat unstable when folding and use is solved by being wholely set, but actually chair face stress is excessive, the power that known support protrusion (A5), cushion block (A6) and reinforcing strip (A7) are finally subject to still passes to front leg strut (A3) and rear support leg (A4) intersection, chair is plastic production, final stress point is identical with pin joint, pin joint is simply hinged, and actual impaired existing for is likely to, and causes that its structural stability is just poor.
And for example China Patent Publication No.: a kind of plastic folding table disclosed in CN20294639U, consult Fig. 2, including desktop and feet, feet includes the left side that middle part is hinged, right support foot (A11, A12), on a described left side, right support foot (A11, A12) upper end is respectively articulated with a left side, right support connecting rod (A21, A22), desktop is also divided into a left side, right desktop (A31, A32), left, right desktop (A31, A32) limit is separately fixed at a left side, right support connecting rod (A21, A22) on, support link reserves one section of support portion (A4) between hinged place to the desktop edge of support link and a spike.Desktop, support link and a spike are made by plastic material.This fold mechanism is substantially also integrated with desk, the power that left and right desktop (A31, A32) is subject to is delivered to left and right spike (A11, A12) intersection through left and right support link (A21, A22), therefore, this intersection pin joint and stress point are also same point, pin joint is also simply hinged, when desktop stress reaches certain value, the impaired difference that there is also is likely to, and its structural stability is poor.
Summary of the invention
This utility model be primarily to solve existing with plastics be material folding seat, the articles for daily use fold mechanism poor stability such as folding table technical problem.
The technical scheme that this utility model to solve problem is as follows:
Fold mechanism, including the main body being associated with this fold mechanism and accessory body, it is characterised in that: also include a central axle sleeve, tail end axle sleeve and fixing bolt, fix screw bolt passes central axle sleeve and tail end axle sleeve；
Central axle sleeve, body periphery is provided with through the axis hole of body to axle center Unequal distance and axle center；
Tail end axle sleeve, body axle center is provided with mean for the female thread screw that fixing bolt is fixing；
At central axle sleeve or/and be additionally provided with axially distributed multiple grooves on the outer sleeve body of tail end axle sleeve, the spacing between this groove 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 the opposite side into accessory body；
Central axle sleeve, tail end axle sleeve and fixing bolt are metal material.
Being additionally provided with a front-end shaft sleeve between central axle sleeve and fixing bolt, front-end shaft sleeve is embedded on accessory body.
Described groove can with at least one protruding replacement.
The body periphery of described central axle sleeve can be equidistant to axle center.
Use the chair of this fold mechanism, including the chair back, seat and forward and backward chair lower limb, it is characterised in that: chair back side extends to form front chair lower limb, and the chair back leans against has a space near 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 the tail end axle sleeve A in space opposite side chair back side extends；
The middle part of back leg is provided with blend stop, and lower surface, seat rear at least extends a fixing end being embedded with central axle sleeve B, and fixing bolt B, through the extending part of blend stop, central axle sleeve B, is fixed on the tail end axle sleeve B being embedded in blend stop extension projection；
The middle part of front chair lower limb is provided with and makes seat remain stable for the impetus puted forth effort.
The chair back leans against part and is embedded with front-end shaft sleeve.
Described impetus be one side extend and on hook, to being provided with a groove bottom hook seat.
The beneficial effects of the utility model are as follows:
Fixing bolt, central axle sleeve, tail end axle sleeve is metal material, this utility model is by fixing screw bolt passes accessory body, it is embedded at the main body upper periphery central axle sleeve from axle center Unequal distance, it is embedded the tail end axle sleeve into other end accessory body, main body is made to produce hinge-effect with accessory body, formed hinged, the central axle sleeve body of all back gauge axle center Unequal distance and groove can more firmly make central axle sleeve and main body be integrally forming, so that stress point is transferred to fixing bolt by central axle sleeve, fixing bolt is dispersed on accessory body, stress own is reduced, intensity is high, structure is more stable, service life is also long.
The chair that this utility model is applied to is because of fold mechanism of the present utility model, suffered power can be uniformly transferred, load ability is strong, again because of between fold mechanism three gap little, good stability, has used for a long time without displacement occur, can strengthen the quality of low cost plastic product, thus improving the service life of such plastic living articles for use, the market competitiveness of enterprise.
Accompanying drawing illustrates:
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 described in the utility model；
Fig. 4 is the STRUCTURE DECOMPOSITION figure of Fig. 3；
Fig. 5 is the structural representation of another embodiment of fold mechanism described in the utility model；
Fig. 6 is the STRUCTURE DECOMPOSITION figure of Fig. 5；
Fig. 7 is the structural representation of chair described in the utility model；
Fig. 8 is the partial enlarged drawing of Fig. 7；
Fig. 9 is the structural representation of another angle of Fig. 7；
Detailed description of the invention:
Below in conjunction with accompanying drawing, this utility model done further details of elaboration；
Consult Fig. 3 to Fig. 6, embodiment one, fold mechanism, including the main body (figure does not mark) being associated with this fold mechanism and accessory body (figure does not mark), also include a central axle sleeve (1), tail end axle sleeve (2) and fixing bolt (3), fixing bolt (3) sequentially passes 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 is provided with through the axis hole of body (11)；Axis hole (11) inner wall smooth, in some cases, described axis hole (11) inwall is additionally provided with oil groove.
Body periphery is to axle center Unequal distance, it is possible to make body shape show as tetragon, and triangle is, and as the polygon of five-pointed star formula.
Tail end axle sleeve (2), body axle center is provided with mean for the female thread screw (21) that fixing bolt is fixing；This screw can also can be blind hole for through hole, is preferably blind hole.
At central axle sleeve (1) or/and be additionally provided with axially distributed multiple grooves (5) on the outer sleeve body of tail end axle sleeve (2), the spacing between this groove (5) can be zero；When spacing is zero, groove (5) can show as and join end to end, and namely forms spiral helicine groove, when spacing is not zero, could be arranged to again equidistant and Unequal distance, as with the pitch spacings such as 2cm one, entirety just overlaps body length, Unequal distance depending on central axle sleeve (1), can be 1cm equidistant after one again with equidistant one of 2cm, again with equidistant one of 3cm, above numerical value simply enumerates, and is not limit.
Certainly, groove (5) can be put and set, it is also possible to ring-type is arranged.Point sets and can also be randomly provided, and described point sets the independent depression being a radius as certain geometrical shape, and it is one section longer groove that described ring-type is set to be arranged on jacket surface.
Central axle sleeve (1) is embedded in main body (figure does not mark), and fixing bolt (3) is located at accessory body side, tail end axle sleeve (2) is embedded the opposite side into accessory body (figure does not mark)；
Central axle sleeve (1), tail end axle sleeve (2) and fixing bolt (3) are metal material.
In the present embodiment, main body is a relative address with accessory body, and do not lie in certain position limiting to certain plastic product, simply it is used as the variability call at the plastic product position that central axle sleeve (1) is fixed respectively with fixing bolt (3) and tail end axle sleeve (2), the two or more parts making plastic product produce hinged and then collapsible with this, form fold mechanism.
Embodiment two, based on embodiment one, is additionally provided with a front-end shaft sleeve (4) between central axle sleeve (1) and fixing bolt (3), and front-end shaft sleeve (4) is embedded on accessory body (figure does not mark).
In the present embodiment, front-end shaft sleeve (4) is provided with near the side of central axle sleeve (1), the recessed to the inside step (41) matched with fixing bolt (3) screw head.
Embodiment three, based on embodiment one, described groove (5) can with at least one protruding replacement.In the present embodiment, groove (5) can mix setting with projection, it is also possible to is entirely replaced by projection.Further, described projection can be arranged in the outer surface of body in the shape of a spiral, it is also possible to certain intervals is perpendicular to axial arranging, it is possible to branch, it is also possible to ring-type.
Embodiment four, based on embodiment one, the body periphery of described central axle sleeve can be equidistant to axle center.
In embodiment one to three, described tail end axle sleeve (2) also is provided with groove (5), and described front-end shaft sleeve (4) also is provided with groove (5), and tail end axle sleeve (2), front-end shaft sleeve (4) also have and have identical profile with central axle sleeve (1) body.
Consult Fig. 7 to Fig. 9, use the chair of this fold mechanism, including the chair back (1A), seat (1B) and forward and backward chair lower limb (1C, 1D), the chair back (1A) side extends to form front chair lower limb (1C), and the chair back (1A) leans against (1E) and has a space (1F) near side；
Fixing bolt A(1G) the central axle sleeve A(1H that is embedded of back leg (1D) end that is placed through in space (1F)), it is fixed on the tail end axle sleeve A(1I in space (1F) the opposite side chair back (1A) side extends)；
The middle part of back leg (1D) is provided with blend stop (1J), seat (1B) lower surface, rear at least extends one and is embedded with central axle sleeve B(1K) fixing end (1L), the extending part (1N) of fixing bolt B (1M) traverse blend stop (1J), central axle sleeve B(figure indicating), it is fixed on the tail end axle sleeve B(figure indicating being embedded in blend stop (1J) extension protruding (1O))；
The middle part of front chair lower limb (1C) is provided with the impetus (1Q) making seat (1B) remain stable for putting forth effort.
The chair back (1A) leans against part and is embedded with front-end shaft sleeve (figure indicating).
Described impetus (1Q) be one side extend and on hook, namely side extends above to level, to being provided with a groove bottom hook seat.When open mode, hook is inserted in groove, it is ensured that the prone stability of chair.A reinforcement it is additionally provided with outside the cell wall of groove.It can be made to be not susceptible to displacement in the lateral direction by reinforcement.
Folding seat described in the utility model can manufacture according to the following steps:
The first step, first assembles central axle sleeve A, sequentially passes through central axle sleeve A, tail end axle sleeve A by fixing bolt A and forms one；
Second step, is placed in the mould of the chair back, the injection moulding simultaneously of rear chair foot, injection mo(u)lding by the fixing bolt A, the central axle sleeve A that assemble and tail end axle sleeve A；
3rd step, is placed in seat mould by central axle sleeve B, with seat integrated injection molding；
4th step, the seat after molding and the chair back are placed and are matched, and fixing bolt B sequentially passes through the extending part on rear chair foot blend stop, through fixing bolt B, the tail end axle sleeve B of the extension projection of blend stop and its internal integrated injection molding, namely complete the production of a kind of folding chair.
Above-described chair, because its pin joint and the strong point are for being not all same position, and use fold mechanism adopts is that the fixing bolt of metal is through central axle sleeve and tail end axle sleeve, uniform force is made to transmit, load ability is strong, again because of between three gap little, good stability, use for a long time without displacement occurs, and the part of fold mechanism is passed through injection mo(u)lding with the product to use, the quality of low cost product can be strengthened, thus improving the service life of such plastic living articles for use, the market competitiveness Neng Shi consumer again making enterprise's improving product obtains more inexpensive good product.
It addition, as the deformation of above-described embodiment, foldable structure of the present utility model can be applicable to other furniture such as desk.
Its described central axle sleeve is connected or the main body of integrated injection molding or a part that accessory body is other furniture such as desk, and accessory body is by front-end shaft sleeve or directly then passes through the central axle sleeve in main body with fixing bolt through part ennation and terminates in the tail end axle sleeve in accessory body other end ennation.
Claims (6)
1. fold mechanism, including the main body being associated with this fold mechanism and accessory body, it is characterised in that: also include a central axle sleeve, tail end axle sleeve and fixing bolt, fix screw bolt passes central axle sleeve and tail end axle sleeve；
Central axle sleeve, body periphery is provided with through the axis hole of body to axle center Unequal distance and axle center；
Tail end axle sleeve, body axle center is provided with mean for the female thread screw that fixing bolt is fixing；
At central axle sleeve or/and be additionally provided with axially distributed multiple grooves on the outer sleeve body of tail end axle sleeve, the spacing between this groove 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 the opposite side into accessory body；
Central axle sleeve, tail end axle sleeve and fixing bolt are metal material.
2. fold mechanism according to claim 1, it is characterised in that: being additionally provided with a front-end shaft sleeve between central axle sleeve and fixing bolt, front-end shaft sleeve is embedded on accessory body.
3. fold mechanism according to claim 1, it is characterised in that: described groove can with at least one protruding replacement.
4. use the chair of fold mechanism as claimed in claim 1, including the chair back, seat and forward and backward chair lower limb, it is characterised in that: chair back side extends to form front chair lower limb, and the chair back leans against has a space near 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 the tail end axle sleeve A in space opposite side chair back side extends；
The middle part of back leg is provided with blend stop, and lower surface, seat rear at least extends a fixing end being embedded with central axle sleeve B, and fixing bolt B, through the extending part of blend stop, central axle sleeve B, is fixed on the tail end axle sleeve B being embedded in blend stop extension projection；
The middle part of front chair lower limb is provided with and makes seat remain stable for the impetus puted forth effort.
5. chair according to claim 4, it is characterised in that: the chair back leans against part and is embedded with front-end shaft sleeve.
6. chair according to claim 4, it is characterised in that: described impetus be one side extend and on hook, to being provided with a groove bottom hook seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067135.6U CN205385998U (en) | 2015-12-21 | 2015-12-21 | Folding mechanism and use this folding mechanism's chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067135.6U CN205385998U (en) | 2015-12-21 | 2015-12-21 | Folding mechanism and use this folding mechanism's chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205385998U true CN205385998U (en) | 2016-07-20 |
Family
ID=56381159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521067135.6U Withdrawn - After Issue CN205385998U (en) | 2015-12-21 | 2015-12-21 | Folding mechanism and use this folding mechanism's chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205385998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105380434A (en) * | 2015-12-21 | 2016-03-09 | 台州市黄岩百业模具厂 | Folding mechanism and chair applying same |
-
2015
- 2015-12-21 CN CN201521067135.6U patent/CN205385998U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105380434A (en) * | 2015-12-21 | 2016-03-09 | 台州市黄岩百业模具厂 | Folding mechanism and chair applying same |
| CN105380434B (en) * | 2015-12-21 | 2018-01-23 | 台州市黄岩百业模具厂 | Fold mechanism and the chair using the fold mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160720 Effective date of abandoning: 20180123 |