CN105559396A - Movable automatic sofa leg withdrawing device - Google Patents
Movable automatic sofa leg withdrawing device Download PDFInfo
- Publication number
- CN105559396A CN105559396A CN201610071982.2A CN201610071982A CN105559396A CN 105559396 A CN105559396 A CN 105559396A CN 201610071982 A CN201610071982 A CN 201610071982A CN 105559396 A CN105559396 A CN 105559396A
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- CN
- China
- Prior art keywords
- drag
- line switch
- spring
- stay rope
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
- A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
-
- 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
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Springs (AREA)
- Legs For Furniture In General (AREA)
Abstract
The invention relates to a movable automatic sofa leg withdrawing device which comprises a mechanical stretching device and a switching device. The switching device consists of an oversize stay rope switch, a stay cord, a stay rope support, automatic returning rotary shaft rotation parts, a square rotating pipe and springs, the automatic returning rotary shaft rotation parts and the springs are arranged on the two sides of the mechanical stretching device, the square rotating pipe is in rotary connection with a sitting frame installing plate, the automatic returning rotary shaft rotation parts are fixed to the square rotating pipe, and the springs are respectively connected with the sitting frame installing plate and the automatic returning rotary shaft rotation parts. The oversize stay rope switch consists of a stay rope switch housing, a stay rope switch tongue, a stay rope switch central shaft and a stay rope switch torsion spring, wherein the stay rope switch tongue is rotatably installed on the stay rope switch housing through the stay rope switch central shaft and the stay rope switch torsion spring, the stay cord is connected with the stay rope switch tongue and the stay rope support respectively, and the stay rope support is in rotary connection with the sitting frame installing plate through the stay rope switch torsion spring. The movable automatic sofa leg withdrawing device decreases the force required by leg withdrawing and prevents the risk of automatic leg opening.
Description
Technical field
The present invention relates to a kind of Disassembling sofa leg automatic recycling device, particularly one to put leg and can automatically draw in when certain angle, backrest angle can carry out certain multifunctional movable sofa leg automatic recycling device regulated.
Background technology
Current existing active sofa mechanical stretching device (manually) has the place of three great deficiencies: 1, drag-line switching power arm is shorter, opens effort; When 2 Disassembling sofa legs finally close, required power is comparatively large, is difficult to shut, poor to the experience of old man and child; 3, easily automatically open when sofa is subject to impacting, in carrying and logistics progress, easily cause danger.
Summary of the invention
Technical problem to be solved by this invention to overcome in prior art existing above-mentioned deficiency, and provide a kind of simple for structure, safe and reliable and realize the active sofa mechanical stretching device of leg the automatic recovery.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of Disassembling sofa leg automatic recycling device, comprise mechanical extending device, switching device, mechanical extending device has identical left-hand side part, right side members, left-hand side part is fixedly connected with by fixed part with right side members, it is characterized in that described switching device is by enlarged drag-line switch, stay cord, cable support, automatically power axis of rotation part is returned, rotate square tube and spring composition, the left-hand side part of described mechanical extending device, right side members is provided with returns power axis of rotation part and spring automatically, rotate square tube to be rotationally connected with seat frame installing plate, automatically returning power axis of rotation part is fixed in rotation square tube, spring one end is arranged on to be sat on frame installing plate, the spring other end is arranged on and automatically returns on power axis of rotation part, enlarged drag-line switch is by drag-line switch housing, drag-line switch tongue, drag-line switching center axle and drag-line switch torsion spring composition, drag-line switch tongue is rotatably installed on drag-line switch housing by drag-line switching center axle, drag-line switch housing is fixed in sofa wooden frame, drag-line switching center axle is set with drag-line switch torsion spring, drag-line switch tongue is provided with stay cord hole, stay cord hole is connected with stay cord one end, the stay cord other end is arranged on cable support, cable support is rotationally connected by cable support torsion spring and seat frame installing plate.
Drag-line switch tongue rotational angle of the present invention is 130 ° ~ 150 °, and power arm length is 150mm ~ 180mm, and resistance arm length is 24mm ~ 28mm.Preferred as one, drag-line switch tongue rotational angle is 140 °, and power arm length is 160mm, and resistance arm length is 26mm.Enlarged drag-line switch can reduce device for opening power used, and be easy to old man and child's use, switch can be embedded in sofa wooden frame completely, avoids exposing, brief and practical.
Rotation square tube of the present invention is rotationally connected by the first rotating shaft and seat frame installing plate, when the first rotating shaft is on the straight line of spring place, mechanical extending device of the present invention is in the automatic recovery and the critical point of opening, when the first rotating shaft is below spring, spring force makes the stressed withdrawal of leg, when the first rotating shaft is above spring, spring force makes that leg is stressed to be opened.Leg is subject to very little power and just can automatically draws in.Otherwise when not using enlarged drag-line switch, leg will be subject to very large power and just can open, effectively prevent brandreth and being subject to the unsafe condition that shock can open automatically.Solve the problem that Disassembling sofa leg draws effort in, achieve the function of leg leg the automatic recovery under certain angle condition, optimize experience.
Automatic time power axis of rotation part of the present invention is provided with confined planes, and confined planes coordinates with the limiting bush on mechanical extending device.
Present invention, avoiding Disassembling sofa leg when running into impact and there will be the unsafe condition automatically opened, the effective guarantee safe condition of user.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention left-hand side part or right side members leg front schematic view when drawing in completely.
Fig. 2 is embodiment of the present invention the automatic recovery and the critical point front schematic view opened.
Fig. 3 is embodiment of the present invention left-hand side part or right side members leg front schematic view when launching completely.
Fig. 4 is the structural representation of embodiment of the present invention enlarged drag-line switch.
Fig. 5 is the schematic diagram of the common drag-line switch of prior art.
Fig. 6 is the structural representation of embodiment of the present invention stay cord.
In figure: 1-enlarged drag-line switch; 2-stay cord; 3-first drag-line installing hole; 4-first spring mounting hole; 5-returns power axis of rotation part automatically; 6-second spring mounting hole; 7-first rotating shaft; 8-cable support; 9-rotates square tube; 10-second drag-line installing hole; 11-spring; 12-sits frame installing plate; 13-second rotating shaft; 14-drag-line switch housing; 15-drag-line switch tongue; 16-drag-line switching center axle; 17-drag-line switch torsion spring; 18-limiting bush; 19-confined planes; 20-cable support torsion spring; 21-round metal column cap; 22-plastic buckle; 23-metal buckle.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the invention will be further described.
Embodiment of the present invention Disassembling sofa leg automatic recycling device mechanical extending device is made up of mechanical extending device, switching device, described mechanical extending device is prior art, mechanical extending device has identical left-hand side part, right side members, and left-hand side part is fixedly connected with by fixed part with right side members.As a kind of special case, the left-hand side part of described mechanical extending device, right side members are provided with returns power axis of rotation part 5 and spring 11 automatically, rotate square tube 9 to be rotationally connected by the first rotating shaft 7 and seat frame installing plate 12, automatically returning power axis of rotation part 5 is fixed in rotation square tube 9, spring 11 one end is arranged on by the first spring mounting hole 4 to be sat on frame installing plate 12, and the other end is arranged on by the second spring mounting hole 6 and automatically returns on power axis of rotation part 5.
Enlarged drag-line switch 1 is made up of drag-line switch housing 14, drag-line switch tongue 15, drag-line switching center axle 16 and drag-line switch torsion spring 17, the drag-line switch tongue 15 of enlarged drag-line switch 1 is provided with stay cord hole 151, stay cord 2 one end is stuck in stay cord hole 151 by round metal column cap 21, the metal buckle 23 of stay cord 2 other end is arranged on cable support 8 by the first drag-line installing hole 3, and the plastic buckle 22 on stay cord 2 is fixed on by the second drag-line installing hole 10 and sits on frame installing plate 12.Cable support 8 is rotatedly connected by the second rotating shaft 13 with seat frame installing plate 12, the switching device of composition mechanical extending device.Enlarged drag-line switch 1 monnolithic case is larger than drag-line switch common on the market, drag-line switch tongue 15 rotational angle α is greater than regular tap rotational angle β (see Fig. 4, Fig. 5), and resistance arm (distance between drag-line switching center axle 16 center line and stay cord hole 151 center line) D is longer, add the stroke of switch, enable to cross brandreth flex point easily and open brandreth leg; Enlarged drag-line switch 1 increases the power arm length L of drag-line switch tongue 15, and L and D ratio is greater than common drag-line switch ratio, and user just can open leg by less power.
User stirs enlarged drag-line switch 1 and to stretch stay cord 2, the cable support 8 be connected with stretching 2 rotates around the second rotating shaft 13, to the power F automatically returning power axis of rotation part 5 and produce a direction as shown in Figure 1, automatic time power axis of rotation part 5 is stressed rotates around the first rotating shaft 7, thus the leg realizing mechanical extending device is opened.After unclamping drag-line switch tongue 15, switch resets under the effect of drag-line switch torsion spring 17, and cable support 8 also resets and gets back to initial position under the effect of cable support torsion spring 20.
When the first rotating shaft 7 be positioned at the same straight line of spring 11 on time, the embodiment of the present invention is in the automatic recovery and the critical point (as shown in Figure 2) of opening, when the first rotating shaft 7 is below spring 11, spring 11 forces mechanical extending device to produce the power of the automatic recovery leg, by the motion mode of Fig. 2 to Fig. 1, move when moving to limiting bush 18 and contacting with the automatic confined planes 19 returned on power axis of rotation part 5 and stop, the i.e. the automatic recovery of leg, when the first rotating shaft 7 is above spring 11, the power that spring 11 forces mechanical extending device generation leg to be opened, by the motion mode of Fig. 2 to Fig. 3, i.e. the opening completely of leg.
Every simple deformation of the present invention or equivalent transformation, should think and fall into protection scope of the present invention.
Claims (5)
1. a Disassembling sofa leg automatic recycling device, comprise mechanical extending device, switching device, mechanical extending device has identical left-hand side part, right side members, left-hand side part is fixedly connected with by fixed part with right side members, it is characterized in that described switching device is by enlarged drag-line switch, stay cord, cable support, automatically power axis of rotation part is returned, rotate square tube and spring composition, the left-hand side part of described mechanical extending device, right side members is provided with returns power axis of rotation part and spring automatically, rotate square tube to be rotationally connected with seat frame installing plate, automatically returning power axis of rotation part is fixed in rotation square tube, spring one end is arranged on to be sat on frame installing plate, the spring other end is arranged on and automatically returns on power axis of rotation part, enlarged drag-line switch is by drag-line switch housing, drag-line switch tongue, drag-line switching center axle and drag-line switch torsion spring composition, drag-line switch tongue is rotatably installed on drag-line switch housing by drag-line switching center axle, drag-line switch housing is fixed in sofa wooden frame, drag-line switching center axle is set with drag-line switch torsion spring, drag-line switch tongue is provided with stay cord hole, stay cord hole is connected with stay cord one end, the stay cord other end is arranged on cable support, cable support is rotationally connected by cable support torsion spring and seat frame installing plate.
2. Disassembling sofa leg automatic recycling device according to claim 1, is characterized in that: described drag-line switch tongue rotational angle is 130 ° ~ 150 °, and power arm length is 150mm ~ 180mm, and resistance arm length is 24mm ~ 28mm.
3. Disassembling sofa leg automatic recycling device according to claim 2, is characterized in that: drag-line switch tongue rotational angle is 140 °, and power arm length is 160mm, and resistance arm length is 26mm.
4. Disassembling sofa leg automatic recycling device according to claim 1 and 2, it is characterized in that: described rotation square tube is rotationally connected by the first rotating shaft and seat frame installing plate, when the first rotating shaft is on the straight line of spring place, described mechanical extending device is in the automatic recovery and the critical point of opening, when the first rotating shaft is below spring, spring force makes the stressed withdrawal of leg, and when the first rotating shaft is above spring, spring force makes that leg is stressed to be opened.
5. Disassembling sofa leg automatic recycling device according to claim 1 and 2, is characterized in that: described automatic time power axis of rotation part is provided with confined planes, and confined planes coordinates with the limiting bush on mechanical extending device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071982.2A CN105559396B (en) | 2016-02-02 | 2016-02-02 | A kind of Disassembling sofa leg automatic recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071982.2A CN105559396B (en) | 2016-02-02 | 2016-02-02 | A kind of Disassembling sofa leg automatic recycling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105559396A true CN105559396A (en) | 2016-05-11 |
| CN105559396B CN105559396B (en) | 2018-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610071982.2A Active CN105559396B (en) | 2016-02-02 | 2016-02-02 | A kind of Disassembling sofa leg automatic recycling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105559396B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168480Y (en) * | 1993-07-31 | 1994-06-15 | 张其翼 | Multifunctional sofa chair |
| US20100102612A1 (en) * | 2008-10-23 | 2010-04-29 | L & P Property Management Company | Chair leg rest assembly |
| CN201571760U (en) * | 2009-11-19 | 2010-09-08 | 嘉兴宏森家具配件有限公司 | Multifunctional mechanical extending device of movable sofa |
| US20110248544A1 (en) * | 2010-04-13 | 2011-10-13 | La-Z-Boy Incorporated | Release system for furniture member leg rest assemblies |
| CN102657449A (en) * | 2012-05-21 | 2012-09-12 | 锐迈机械科技（吴江）有限公司 | Mechanical extension device of movable sofa |
| CN203016366U (en) * | 2012-12-07 | 2013-06-26 | 锐迈机械科技（吴江）有限公司 | Mechanical stretching device of movable sofa |
| CN104188400A (en) * | 2014-09-03 | 2014-12-10 | 黄小卫 | Automatic retraction and mechanical extension device for movable sofa legs |
| CN205548038U (en) * | 2016-02-02 | 2016-09-07 | 锐迈机械科技（吴江）有限公司 | Automatic recovery unit of activity sofa shank |
-
2016
- 2016-02-02 CN CN201610071982.2A patent/CN105559396B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168480Y (en) * | 1993-07-31 | 1994-06-15 | 张其翼 | Multifunctional sofa chair |
| US20100102612A1 (en) * | 2008-10-23 | 2010-04-29 | L & P Property Management Company | Chair leg rest assembly |
| CN201571760U (en) * | 2009-11-19 | 2010-09-08 | 嘉兴宏森家具配件有限公司 | Multifunctional mechanical extending device of movable sofa |
| US20110248544A1 (en) * | 2010-04-13 | 2011-10-13 | La-Z-Boy Incorporated | Release system for furniture member leg rest assemblies |
| CN102657449A (en) * | 2012-05-21 | 2012-09-12 | 锐迈机械科技（吴江）有限公司 | Mechanical extension device of movable sofa |
| CN203016366U (en) * | 2012-12-07 | 2013-06-26 | 锐迈机械科技（吴江）有限公司 | Mechanical stretching device of movable sofa |
| CN104188400A (en) * | 2014-09-03 | 2014-12-10 | 黄小卫 | Automatic retraction and mechanical extension device for movable sofa legs |
| CN205548038U (en) * | 2016-02-02 | 2016-09-07 | 锐迈机械科技（吴江）有限公司 | Automatic recovery unit of activity sofa shank |
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| Publication number | Publication date |
|---|---|
| CN105559396B (en) | 2018-05-08 |
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Address after: 215217 west side of Tongjin Avenue, Wujiang Economic and Technological Development Zone, Suzhou, Jiangsu Patentee after: Ruimai Technology Co.,Ltd. Address before: No. 5555, Tongjin Avenue, Wujiang Economic Development Zone, Suzhou, Jiangsu 215200 Patentee before: REMACRO MACHINERY & TECHNOLOGY (WUJIANG) Co.,Ltd. |