CN105193119A - Sofa bracing structure - Google Patents
Sofa bracing structure Download PDFInfo
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- CN105193119A CN105193119A CN201510687247.XA CN201510687247A CN105193119A CN 105193119 A CN105193119 A CN 105193119A CN 201510687247 A CN201510687247 A CN 201510687247A CN 105193119 A CN105193119 A CN 105193119A
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- bar
- fixed part
- backrest
- sofa
- toggle
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Abstract
A sofa bracing structure comprises the structures such as a switching mechanism, a first linkage mechanism and a second linkage mechanism, wherein the switching mechanism comprises a transitional cross rod and a transitional connecting part; the first linkage mechanism comprises a first crank rod, a straight rod and a second crank rod; the second linkage mechanism comprises a footrest fixing part, a backrest fixing part, a hand rail side plate fixing part, a locking mechanism and a transmission part. The technical scheme has the characteristics of simple structure and high use comfort level.
Description
Technical field
The present invention relates to a kind of sofa configuration, particularly relate to a kind of liftable sofa supporting construction.
Background technology
Along with the raising of living standards of the people, consumer proposes new demand to the functional of sofa, during as having folding be simultaneously sofa and launch time be chaise longue, the demand of functions such as standing of being convenient to stand up.
For realizing above-mentioned technical purpose (demand), in the patent document of patent of invention CN201310104494.3, disclose a kind of technical scheme of electric folding bed chair, comprise: electric push rod group, three are connected part, former riding adjustment group, backrest adjustment group and pony sill adjustment group, be hinged between each group, driven by electric push rod group and connect main shaft in east, connect main shaft drive backrest to launch by joint brace or fold, connecting motion of main shaft drives three to be connected before part does, rear motion, three are connected part by former riding adjustment group drive front running board expansion or folding, the stretching motion of telescoping tube, the expansion of front running board and folding movement, the expansion of backrest and folding movement are carries out simultaneously, can complete fast.A kind of supporting mechanism described in this technical scheme tentatively achieves switching bed chair being launched into bed, being folded into the function of chair and function thereof, but in actual use, carry out simultaneously because described motion is and completes, user has the sensation of facing upward suddenly when bed chair launches, greatly reduce product comfort; Simultaneously so structure is all fixedly installed on base, higher requirement is firmly proposed to understructure, make understructure complicated.
For overcoming above-mentioned technical problem, in the patent document of patent of invention CN201310526632.7, disclose a kind of technical scheme of old-man chair, comprise: base support mechanism, toe board mechanism, backrest, linkage, electric pushrod and seat lifting mechanism, seat lifting mechanism and base support mechanism rivet, and toe board mechanism, backrest and linkage are all arranged on seat lifting mechanism; Toe board lifting and backrest can be realized to lie down the function of sequencing.But in actual use, face upward action of lying and occur over just on toe board mechanism and backrest, user needs to be adjusted to the state of facing upward and lying under the constant state of sitting posture, greatly reduces product comfort; Simultaneously, the rotation moving through three connecting rods of gas bar passes to backrest and toe board mechanism, therefore the motion of backrest and toe board still synchronously starts, only because the two length of connecting rod difference produces different angular velocity of satellite motion, the lifting of toe board is matched with the speed of facing upward under backrest; Last preceding solution is similar, so structure is all fixedly installed on base, and two kinds move through two structures drivings, and with two of separation gas bar kinds of motions, therefore understructure is more complicated, requires high to the steadiness of understructure.
Summary of the invention
The present invention will solve the problems of the technologies described above, thus provide that structure is simple, backrest and toe board successively steadily launches, comfort is high sofa supporting mechanism.
The technical scheme that the present invention solves the problem is as follows:
A kind of sofa supporting construction, is comprised base, sofa bracket, gas bar, switching mechanism, the first link gear and the second link gear, handrail side panel, backrest and seat board frame, is connected between base and sofa bracket by lanar four rod mechanism; The rear portion of base is provided with gas bar joint portion, for the lower end of fixed air bar; Sofa bracket comprises front U-shaped bar, rear U-shaped bar, the gentle bar connecting portion of sofa handrail side plate installation portion, and described gas bar connecting portion is arranged on the middle part of front U-shaped bar;
Switching mechanism, comprises transition cross bar, transition connection portion;
First link gear, under the driving of switching mechanism, the interlock of adjustment seat sheet frame and backrest, comprises the first toggle-action lever, straight-bar and the second toggle-action lever; One end of described first toggle-action lever is fixedly connected on transition crossbar end, and described second toggle-action lever is fixedly installed on seat board frame;
Second link gear, under the driving of the first link gear, regulate the interlock of toe board and backrest, comprise toe board fixed part, backrest fixed part, handrail side panel fixed part, locking mechanism and driving section, described toe board fixed part moves for driving toe board; Described backrest fixed part is fixedly installed on backrest, for driving back movement; Described backrest fixed part is connected with the tie point of straight-bar and the second toggle-action lever, for providing the first fulcrum and drive point for the motion of the second link gear; Described handrail side panel fixed part is fixedly installed in handrail side panel, for providing the second fulcrum for the motion of the second link gear;
Described gas bar connecting portion and described transition connection portion hinged, and described transition connection portion is for connecting the upper end of gas bar;
Described transition connection portion is fixedly installed on transition cross bar, has upper bound site and lower bound site; Upper bound site connects the upper end of gas bar and as the center of rotation of gas bar, lower bound site is connected with front U-shaped bar by gas bar connecting portion and as the center of rotation of the relative front U-shaped bar of transition cross bar;
Described locking mechanism, has and stretches out the sealed groove with recovery movement for cooperatively interacting with the sealed pin be arranged on handrail side panel fixed part and limiting driving section;
Described driving section, for transferring the motion to toe board fixed part, backrest fixed part and balustrade panel fixed part.
Optimal technical scheme is known thus, and planar linkage mechanism, as the executing agency of facing upward action of lying, is be fixedly installed on the balustrade panel of both sides, because this simplify understructure, alleviates the requirement to understructure intensity simultaneously.
Preferred as technique scheme, described driving section comprises the first quarter butt, first connecting rod group, three connecting rods, pole, the second quarter butt, second connecting rod group, third connecting rod group.
Preferred as technique scheme, described first quarter butt head and the tail are connected with first connecting rod group pin; Described three connecting rod first ends are connected with first connecting rod group pin, the second end sell with the junction of third connecting rod group be connected, the 3rd end is connected with the close end pin of pole; Described pole one end is connected with first connecting rod group end pins; Described second connecting rod group is connected with third connecting rod group pin.
Preferred as technique scheme, described locking mechanism is triangle projective planum metal structure.
Preferred as technique scheme, when the curve shape of described first toggle-action lever works with lanar four rod mechanism, the movement locus of transition cross bar is identical.
Preferred as technique scheme, described straight-bar two ends have the first connecting portion and the second connecting portion; Described first connecting portion is connected with described first toggle-action lever; Described second connecting portion is connected with described second toggle-action lever; Parallel and there is spacing between the plane that the joint face of described first connecting portion and described second connecting portion is formed, make to there is spacing between described first toggle-action lever and described second toggle-action lever.
Preferred as technique scheme, described backrest fixed part is connected with driving section by being connected with the pin of pole, the second quarter butt.
Preferred as technique scheme, the close end of described handrail side panel fixed part is connected with driving section by being connected with the pin of the second quarter butt.
Preferred as technique scheme, described locking mechanism is connected with driving section by being connected with the pin of second connecting rod group and being connected with the pin of pole close end.
Preferred as technique scheme, described lanar four rod mechanism is fixedly welded in front U-shaped metallic rod by its extension, and makes in the extension of front U-shaped metallic rod embedded plane quadric chain.
Be not difficult to find out from technique scheme, the supporting mechanism of lying of facing upward of the technical program faces upward the action time-division of lying in order to two stages in execution: seat board and the backrest of first stage sofa or bed chair move backward, with slight downward slope, toe board upwards launches; Seat board and the backrest of second stage sofa or bed chair are downward-sloping, with slightly moving backward, toe board moves down and launches completely.This process makes the toe board of sofa launch prior to backrest, and seat board and backrest are synchronized with the movement, and user can not produce the sensation of lying to layback suddenly, improves comfort level.
In sum, the present invention has following beneficial effect:
1. structure is simple, faces upward the main executing agency of action of lying---and the second link gear is fixedly installed on the balustrade panel of both sides; Be separated lifting by arranging of the first link gear and faced upward the action of lying simultaneously, made the two non-interference; Because this simplify understructure, both can produce respectively, add the requirement simplified man-hour machining accuracy.
2. comfort is high, and successively steadily expansion, seat and backrest are synchronized with the movement for backrest and toe board; User first sinks and moves afterwards, lifts pin, then under face upward, steadily, process steps meets comfort need in interprocedual conversion.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention 1 sofa bracket and the first link gear;
Fig. 2 is the schematic diagram of the embodiment of the present invention 1 second link gear;
Fig. 3 is the connection diagram between the embodiment of the present invention 1 sofa bracket and seat board frame;
Fig. 4 is connection and the position view of the embodiment of the present invention 1 second link gear and handrail side panel and backrest;
Fig. 5 is the embodiment of the present invention 1 base, sofa bracket, the first link gear, the second link gear, handrail side panel, connect and the schematic diagram of position between backrest and seat board frame;
In figure, 1-base, 2-sofa bracket, 4-switching mechanism, 5-first link gear, 6-second link gear, 7-handrail side panel, 8-backrest, 9-seat board frame, 11-gas bar joint portion, U-shaped metallic rod before 21-, U-shaped metallic rod after 22-, 23-sofa handrail side plate installation portion, 24-gas bar connecting portion, 41-transition cross bar, 42-transition connection portion, 51-first toggle-action lever, 52-straight-bar, 53-second toggle-action lever, 61-toe board fixed part, 62-backrest fixed part, 63-handrail side panel fixed part, 64-locking mechanism, 65-driving section, the upper bound site of 421-, bound site under 422-, 521-first connecting portion, 522-second connecting portion, the sealed groove of 641-, 651-first quarter butt, 652-second connecting rod group, 653-tri-connecting rod, 654-pole, 655-second quarter butt, 656-second connecting rod group, 657-third connecting rod group.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed.
Following detailed description of the invention is only explanation of the invention, is not limitation of the present invention, the amendment that those skilled in the art have made after having read description of the present invention, as long as in the scope of claims, all will be subject to the protection of Patent Law.
Embodiment 1: a kind of sofa supporting construction as shown in Figure 1, comprise base 1, sofa bracket 2, gas bar (not shown), switching mechanism 4, first link gear 5 and the second link gear 6, handrail side panel 7, backrest 8 and seat board frame 9, connected by lanar four rod mechanism between base 1 and sofa bracket 2; The rear portion of base 1 is provided with gas bar joint portion 11, for the lower end of fixed air bar 3; Sofa bracket 2 comprises front U-shaped bar 21, rear U-shaped bar 22, the gentle bar connecting portion 24 of sofa handrail side plate installation portion 23, and described gas bar connecting portion 24 is arranged on the middle part of front U-shaped bar 21; Lanar four rod mechanism is fixedly welded in front U-shaped metallic rod 21 by its extension, and makes in the extension of front U-shaped metallic rod 21 embedded plane quadric chain.
Switching mechanism 4, comprises transition cross bar 41, transition connection portion 42.
First link gear 5, under the driving of switching mechanism 4, adjustment seat sheet frame 9 and the interlock of backrest 8, comprise the first toggle-action lever 51, straight-bar 52 and the second toggle-action lever 53; One end of described first toggle-action lever 51 is fixedly connected on transition cross bar 41 end, and when curve shape works with lanar four rod mechanism, the movement locus of transition cross bar 41 is identical, and described second toggle-action lever 53 is fixedly installed on seat board frame 9.Described straight-bar 52 two ends have the first connecting portion 521 and the second connecting portion 522; Described first connecting portion is connected with described first toggle-action lever 51; Described second connecting portion 522 is connected with described second toggle-action lever 53; Parallel and there is spacing between the plane that the joint face of described first connecting portion 521 and described second connecting portion 522 is formed, make to there is spacing between described first toggle-action lever 51 and described second toggle-action lever 53.
Second link gear 6, under the driving of the first link gear 5, regulate the interlock of toe board and backrest 9, comprise toe board fixed part 61, backrest fixed part 62, handrail side panel fixed part 63, locking mechanism 64 and driving section 65, described toe board fixed part 61 moves for driving toe board; Described backrest fixed part 62 is fixedly installed on backrest 8, moves for driving backrest 8; Described backrest fixed part 62 is connected with the tie point of straight-bar 52 and the second toggle-action lever 53, for providing the first fulcrum and drive point for the motion of the second link gear 6; Described handrail side panel fixed part 63 is fixedly installed in handrail side panel 7, for providing the second fulcrum for the motion of the second link gear 6.
Described gas bar connecting portion 24 is hinged with described transition connection portion 42, and described transition connection portion 42 is for connecting the upper end of gas bar 3.
Described transition connection portion 42 is fixedly installed on transition cross bar 41, has upper bound site 421 and lower bound site 422; Upper bound site 421 connect gas bar 3 upper end and as the center of rotation of gas bar 3, lower bound site 422 to be connected with front U-shaped bar 21 by gas bar connecting portion 24 and relative as transition cross bar 41 before 21 center of rotation of U-shaped bar.
Described backrest fixed part 62 is connected with driving section 65 by being connected with the pin of pole 654, second quarter butt 655.
The close end of described handrail side panel fixed part 63 is connected with driving section 65 by being connected with the pin of the second quarter butt 655.
Described locking mechanism 64 is triangle projective planum metal structures, has and stretches out the sealed groove 641 with recovery movement for cooperatively interacting with the sealed pin 631 be arranged on handrail side panel fixed part 63 and limiting driving section 65.Be connected with driving section 65 by being connected with the pin of second connecting rod group 656 and being connected with the pin of pole 654 close end.
Described driving section 65, for transferring the motion to toe board fixed part 61, backrest fixed part 62 and balustrade panel fixed part 63.Described driving section 65 comprises the first quarter butt 651, first connecting rod group 652, three connecting rod 653, pole 654, second quarter butt 655, second connecting rod group 656, third connecting rod group 657.Described first quarter butt 651 head and the tail are sold with first connecting rod group 652 and are connected; Described three connecting rod 653 first ends sell with first connecting rod group 652 be connected, the second end sell with the junction of third connecting rod group 657 be connected, the 3rd end is connected with the close end pin of pole 654; Described pole 654 one end is connected with first connecting rod group 652 end pins; Described second connecting rod group 656 is sold with third connecting rod group 657 and is connected.
Embodiment 2: embodiment 2 is locking mechanism 64 with the difference of embodiment 1, is elliptic plane metal structure.
Embodiment 3: embodiment 3 is locking mechanism 64 with the difference of embodiment 1, is elliptic plane metal structure; When the curve shape of the first toggle-action lever works from lanar four rod mechanism, the movement locus of transition cross bar 41 is different; The plane that the joint face that the plane that described first connecting portion 521 is formed is close to described second connecting portion 522 is formed.
The course of work of 3 embodiments of the technical program is: the acquiescence non-lifting of sofa or the length of facing upward gas bar when lying are initial length, duty is divided into 2 stages, stage I---gas bar 3 extends, and sofa lifting is low early and high after state, so that user stands up to stand; Stage II---gas bar 3 shrinks, and sofa toe board is opened, backrest 8 tilts backwards with seat board frame 9, and user can face upward the state of lying.
During work (setting sofa do not face upward gas bar when lying length be initial length), under gas bar 3 extends thrust, transition cross bar 41 connects pin member in portion 42 for above axle turns to front U-shaped metallic rod 21 to cross transition, and the thrust that gas bar 3 extends is passed to front U-shaped metallic rod 21, front U-shaped metallic rod 21 produces the trend be synchronized with the movement; Front U-shaped metallic rod 21 is welded and is embedded with lanar four rod mechanism, makes its motion be subject to the restriction of lanar four rod mechanism, and makes its movement locus consistent with front U-shaped metallic rod 21; Now sofa integral raising, and in low early and high after state.Because the second link gear 6 is connected by the first link gear 5 with between transition cross bar 41, therefore transition cross bar 41 is extending with gas bar 3 and the motion that produces, first link gear 5 and the second link gear 6 are not had an impact, thus two motion stages are separated.
Under the pulling force effect that gas bar 3 shrinks, transition cross bar 41 transfers the motion to the first toggle-action lever 51, then transmits the second toggle-action lever 53 by straight-bar 52, makes sofa seat board produce the downward-sloping auxiliary motion of the main motion of movement backward and rear portion thus; Because the first link gear 5 is connected with the second link gear 6, transfer the motion to the second link gear 6, the two is synchronized with the movement simultaneously, makes backrest fixed part 62 synchronously produce the downward-sloping auxiliary motion of the main motion of movement backward and rear portion.Along with the motion of backrest fixed part 62, between pole 654 and the second quarter butt 655, spacing reduces, and locking mechanism 64 is opened; By the conversion of third connecting rod group 657, make backrest fixed part 62 backward the downward-sloping auxiliary motion of the main motion of movement and rear portion become main motion that toe board fixed part 61 launches and auxiliary motion upwards.Now, seat board frame 9 steadily posteriorly move, backrest 8 posteriorly mobile with facing upward under slight, toe board upwards lifts and launches.
Along with the continuation of gas bar 3 is shunk, transition cross bar 41 moves further backward, locking mechanism 64 is opened further and is overturn, pole 654 upwards lifting, spacing between pole 654 and the second quarter butt 655 is increased, thus make backrest fixed part 62 produce rotation, now backrest fixed part 62 creates the auxiliary motion of downward-sloping main motion and movement backward, and seat board frame 9 and backrest 8 are synchronized with the movement; Three connecting rods 653 move to vertical with third connecting rod group 657, make the motion of toe board become the main motion of expansion and downward auxiliary motion.Now, seat board steadily under face upward, backrest is faced upward for 8 times with slightly moving backward, toe board launches completely.
Claims (10)
1. a sofa supporting construction, is comprised base (1), sofa bracket (2), gas bar (3), handrail side panel (7), backrest (8) and seat board frame (9), is connected between base (1) and sofa bracket (2) by lanar four rod mechanism; The rear portion of base (1) is provided with gas bar joint portion (11), for the lower end of fixed air bar (3); Sofa bracket (2) comprises front U-shaped bar (21), rear U-shaped bar (22), the gentle bar connecting portion (24) of sofa handrail side plate installation portion (23), and described gas bar connecting portion (24) is arranged on the middle part of front U-shaped bar (21); It is characterized in that: also comprise switching mechanism (4), the first link gear (5) and the second link gear (6);
Switching mechanism (4), comprises transition cross bar (41), transition connection portion (42);
First link gear (5), under the driving of switching mechanism (4), adjustment seat sheet frame (9) and the interlock of backrest (8), comprise the first toggle-action lever (51), straight-bar (52) and the second toggle-action lever (53); One end of described first toggle-action lever (51) is fixedly connected on transition cross bar (41) end, and described second toggle-action lever (53) is fixedly installed on seat board frame (9);
Second link gear (6), under the driving of the first link gear (5), regulate the interlock of toe board and backrest (9), comprise toe board fixed part (61), backrest fixed part (62), handrail side panel fixed part (63), locking mechanism (64) and driving section (65), described toe board fixed part (61) is moved for driving toe board; Described backrest fixed part (62) is fixedly installed on backrest (8), moves for driving backrest (8); Described backrest fixed part (62) is connected with the tie point of straight-bar (52) and the second toggle-action lever (53), for providing the first fulcrum and drive point for the motion of the second link gear (6); Described handrail side panel fixed part (63) is fixedly installed in handrail side panel (7), for providing the second fulcrum for the motion of the second link gear (6);
Described gas bar connecting portion (24) is hinged with described transition connection portion (42), and described transition connection portion (42) is for connecting the upper end of gas bar (3);
Described transition connection portion (42) is fixedly installed on transition cross bar (41), has upper bound site (421) and lower bound site (422); Upper bound site (421) connects the upper end of gas bar (3) and as the center of rotation of gas bar (3), lower bound site (422) to be connected with front U-shaped bar (21) by gas bar connecting portion (24) and as (21) center of rotation of the relative front U-shaped bar of transition cross bar (41);
Described locking mechanism (64), has and stretches out the sealed groove (641) with recovery movement for cooperatively interacting with the sealed pin (631) be arranged on handrail side panel fixed part (63) and limiting driving section (65);
Described driving section (65), for transferring the motion to toe board fixed part (61), backrest fixed part (62) and balustrade panel fixed part (63).
2. a kind of sofa supporting construction according to claim 1, is characterized in that: described driving section (65) comprise the first quarter butt (651), first connecting rod group (652), three connecting rods (653), pole (654), the second quarter butt (655), second connecting rod group (656), third connecting rod group (657).
3. a kind of sofa supporting construction according to claim 2, is characterized in that: described first quarter butt (651) head and the tail are sold with first connecting rod group (652) and are connected; Described three connecting rods (653) first end sell with first connecting rod group (652) be connected, the second end sell with the junction of third connecting rod group (657) be connected, the 3rd end is connected with the close end pin of pole (654); Described pole (654) one end is connected with first connecting rod group (652) end pins; Described second connecting rod group (656) is sold with third connecting rod group (657) and is connected.
4. a kind of sofa supporting construction according to claim 1, is characterized in that: described locking mechanism (64) is triangle projective planum metal structure.
5. a kind of sofa supporting construction according to claim 1, is characterized in that: when the curve shape of described first toggle-action lever (51) works with lanar four rod mechanism, the movement locus of transition cross bar (41) is identical.
6. a kind of sofa supporting construction according to claim 5, is characterized in that: described straight-bar (52) two ends have the first connecting portion (521) and the second connecting portion (522); Described first connecting portion is connected with described first toggle-action lever (51); Described second connecting portion (522) is connected with described second toggle-action lever (53); Parallel and there is spacing between the plane that the joint face of described first connecting portion (521) and described second connecting portion (522) is formed, make to there is spacing between described first toggle-action lever (51) and described second toggle-action lever (53).
7. a kind of sofa supporting construction according to claim 1, is characterized in that: described backrest fixed part (62) is connected with driving section (65) by being connected with the pin of pole (654), the second quarter butt (655).
8. a kind of sofa supporting construction according to claim 1, is characterized in that: the close end of described handrail side panel fixed part (63) is connected with driving section (65) by being connected with the pin of the second quarter butt (655).
9. a kind of sofa supporting construction according to claim 1, is characterized in that: described locking mechanism (64) is connected with driving section (65) by being connected with the pin of second connecting rod group (656) and being connected with the pin of pole (654) close end.
10. a kind of sofa supporting construction according to claim 1, it is characterized in that: described lanar four rod mechanism is fixedly welded on front U-shaped metallic rod (21) by its extension, and make in the extension of front U-shaped metallic rod (21) embedded plane quadric chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687247.XA CN105193119B (en) | 2015-10-22 | 2015-10-22 | A kind of sofa support construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687247.XA CN105193119B (en) | 2015-10-22 | 2015-10-22 | A kind of sofa support construction |
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| Publication Number | Publication Date |
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| CN105193119A true CN105193119A (en) | 2015-12-30 |
| CN105193119B CN105193119B (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510687247.XA Active CN105193119B (en) | 2015-10-22 | 2015-10-22 | A kind of sofa support construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112167864A (en) * | 2020-11-09 | 2021-01-05 | 安吉县盛信办公家具有限公司 | Electric rocking device of sofa rocking chair |
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| CN205106965U (en) * | 2015-10-22 | 2016-03-30 | 安吉县盛信办公家具有限公司 | Sofa bearing structure |
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| CN202723176U (en) * | 2012-07-26 | 2013-02-13 | 常州市锐新医疗器械有限公司 | Electric sofa lifting chair frame |
| WO2015066943A1 (en) * | 2013-11-11 | 2015-05-14 | 江苏舒意达机械有限公司 | Rotatable multi-link stretching mechanism for electric movable sofa and operating method therefor |
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| CN112167864A (en) * | 2020-11-09 | 2021-01-05 | 安吉县盛信办公家具有限公司 | Electric rocking device of sofa rocking chair |
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| CN105193119B (en) | 2018-11-06 |
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