CA2560077A1 - Sofa-bed with innovative elements for assembly and position adjustment - Google Patents
Sofa-bed with innovative elements for assembly and position adjustment Download PDFInfo
- Publication number
- CA2560077A1 CA2560077A1 CA002560077A CA2560077A CA2560077A1 CA 2560077 A1 CA2560077 A1 CA 2560077A1 CA 002560077 A CA002560077 A CA 002560077A CA 2560077 A CA2560077 A CA 2560077A CA 2560077 A1 CA2560077 A1 CA 2560077A1
- Authority
- CA
- Canada
- Prior art keywords
- sofa
- leg
- spacer
- sofa bed
- bed according
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
- A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
Abstract
Sofa bed with innovative innovative position adjustment mechanism and a fast assembly process, comprising padding elements, a base structure (1) a plurality of mutually hinged frames (2) supported by said base structure and supporting said padding elements, and a kinematic mechanism (3) to change the frames positions; moreover, the base structure comprises two identical elements, named "small legs" (4), a spacer (5), and is characterised by a "hinge" plate (6) consisting of two flat surfaces, fixed on the small leg (4), which consists of two flat surfaces with an almost rectangular hole (7); said hole is tapered on one side (8) to lodge the spacer (5). This assembly procedure removes the clearance in the coupling between the hinge (6) and the spacer (5) and obtains a perfect perpendicularity between the spacer and the "small leg" (4). According to a subsequent aim the base structure assembly is realised by only two bolts.
Description
Title: Sofa-bed with innovative elements for assembly and position adjustment Applicant: Gruppo Industriale Styling Technical field The present invention relates to a convertible sofa bed provided with an innovative position adjustment mechanism and a fast assembly process.
lo In the state of the technique there are already some realizations of convertible sofa beds. They normally comprise (Fig. 1) padding elements, a base structure (1), and a kinematic mechanism (3) to change the frames positions; the required features of said sofa beds are an easy assembly process, an easy conversion from bed configuration to a sofa configuration and vice versa, and also to be comfortable.
The applicant, in this field for many years, has already patented (EP 1020142) a sofa bed characterised by a kinematic mechanism that allows the front legs wheels to stay close to the ground in both positions, a mechanism which blocks the relative rotation between the seat frame and the back frame and a simplified assembly process.
Notwithstanding the remarkable inventive step in this technical field, this invention is still characterised by some drawbacks.
First of all, the machining tolerances cannot ensure a good coupling between the base structure and the frames. Moreover, though very simple, the assembly process needs several bolts and, consequently, a long assembly time.
Disclosure of the invention The invention is characterized by distinguished standard on the market thanks to fact that it is a sofa which comprises padding elements, a base structure (1) a plurality of frames (2), mutually hinged, supported by said base structure and supporting said io padding elements, and a kinematic mechanism (3) allowing the frames shift and stop in the desired positions; moreover, the base structure comprises two identical elements, named "small legs"
(4), a spacer (5), and is characterised by a "hinge" plate (6), fixed on the small leg (4), which consists of two flat surfaces with an is almost rectangular hole (7); said hole is tapered on one side (8) to lodge the spacer (5). This assembly procedure removes the clearance in the coupling between the hinge (6) and the spacer (5) and obtains a perfect perpendicularity between the spacer and the "small leg" (4).
ao According to a subsequent aim the base structure assembly is realized by two bolts only.
These and other advantages will be pointed out in the detailed description of the invention that will refer to the figures of tables 1/5 , 2/5, 3/5, 4/5 and 5/5, in which a preferred and not 25 restrictive embodiment is shown.
Way of carrying out the invention With reference to the above mentioned tables:
= Fig. 1 is the sofa structure according to the invention;
= Fig. 2 shows the base structure ;
= Figs. 3 and 4 show a detail of the plate called "hinge", respectively;
= Fig. 5 shows the hinge between plate and frame;
= Fig. 6 shows the detail of the shaped pin;
io = Fig. 7 shows the coupling between cam and roll;
= Fig. 8 shows the front leg of the structure;
= Fig. 9 shows the fastening of the front leg;
= Fig. 10 shows a detail of the second fixation plate.
As already mentioned, the main purpose of the invention is to is reduce as much as possible the clearance of the sofa base structure (1). Fig. 2 shows the sofa base structure that supports the hinged frames in the bed and sofa configurations, and comprises two identical elements, called "small legs" (4), and a spacer (5). Such a spacer is a rectangular pipe, which constrains 2o and lets the two "small legs" be parallel to each other. In Fig. 3 is shown the plate (6) which allows the assembly between "small leg" and spacer. Said plate consists of two flat surfaces and, due to its function, is called "hinge". It is fixed on the "small leg"
and has an almost rectangular hole (7), with a tapered side (8).
25 As observed in Fig. 4, tightening the bolt (9), the spacer (5) is forced in the tapering (8) of the holes (7). Therefore, thanks to this assembly process, three important conditions are matched:
the clearance elimination in the coupling between hinge (6) and spacer (5); the perfect perpendicularity between spacer (5) and small leg (4); the assembly of the sofa base structure by means of two bolts only (one for each leg).
Another function of the plate called "hinge" (6) is to articulate a frame (10) around a hole (11), as shown in Fig. 5. The frame rotates, moving from a horizontal position to a second desired lo position defined by a block element. The desired position is defined by the holes on the frame, meaning that to change inclination one should change the hole. The rotation axis and the block element are realized by a shaped pin (12), whose end (12'), engaged into a hole of the frame, works as a rotation axis; while the pin portion (12") works as a block element of the frame. A
return spring moves the pin: loosing the spring tension, the pin is inserted in both holes of the two "hinge" plates (6). By a simple movement and without any tool, the frame (10) can be disengaged and fixed on another hole, obtaining a different inclination of the sofa back.
On the free end of the "small leg" (4) there is a roller (13) whose cross section is complementary to the profile of a cam (14) to lodge it when the mechanism is in the sofa configuration, as shown in Fig. 7. The roller has a central groove (13'), few millimetres wide, in which the cam is lodged. This allows the self-centring of the cam and the roll, preventing bad functioning due to misalignment. A second element (15) is connected to the cam (14). It is named "front leg" and can rotate around an axis up to a certain interval, as shown in Fig. 8. Like with the sofa seat, also the front leg (15) should be fixed to a certain angle.
The desired position is obtained by an additional plate (16), which is fixed by a single bolt and has two block elements: the first one (18) realized on the leg, the second one realized on the cam. By means of these block elements, the plate keeps the leg io in the desired position. The block elements can be realized by pins, either inserted in complementary holes or working on the external profile of the leg (15) or the cam (14). In Fig. 9, an embodiment of the described plate is shown. A further functional feature of the fixing plate is a portion (20) at 90 Is degrees to the fixed one, having a number of holes, to be used to fix the panels of different sofa models.
As mentioned, a further aim of the invention is the reduction of the number of bolts in the sofa assembly procedure. The known art requires 14 bolts, the present invention only 6. In fact, each 20 side of the frame has 3 bolts: the first one to fix the spacer (5) to the "small leg" (4), the second to fix the cam (14) to the frame and the third one to fix the back leg (21) to the seat frame (2).
lo In the state of the technique there are already some realizations of convertible sofa beds. They normally comprise (Fig. 1) padding elements, a base structure (1), and a kinematic mechanism (3) to change the frames positions; the required features of said sofa beds are an easy assembly process, an easy conversion from bed configuration to a sofa configuration and vice versa, and also to be comfortable.
The applicant, in this field for many years, has already patented (EP 1020142) a sofa bed characterised by a kinematic mechanism that allows the front legs wheels to stay close to the ground in both positions, a mechanism which blocks the relative rotation between the seat frame and the back frame and a simplified assembly process.
Notwithstanding the remarkable inventive step in this technical field, this invention is still characterised by some drawbacks.
First of all, the machining tolerances cannot ensure a good coupling between the base structure and the frames. Moreover, though very simple, the assembly process needs several bolts and, consequently, a long assembly time.
Disclosure of the invention The invention is characterized by distinguished standard on the market thanks to fact that it is a sofa which comprises padding elements, a base structure (1) a plurality of frames (2), mutually hinged, supported by said base structure and supporting said io padding elements, and a kinematic mechanism (3) allowing the frames shift and stop in the desired positions; moreover, the base structure comprises two identical elements, named "small legs"
(4), a spacer (5), and is characterised by a "hinge" plate (6), fixed on the small leg (4), which consists of two flat surfaces with an is almost rectangular hole (7); said hole is tapered on one side (8) to lodge the spacer (5). This assembly procedure removes the clearance in the coupling between the hinge (6) and the spacer (5) and obtains a perfect perpendicularity between the spacer and the "small leg" (4).
ao According to a subsequent aim the base structure assembly is realized by two bolts only.
These and other advantages will be pointed out in the detailed description of the invention that will refer to the figures of tables 1/5 , 2/5, 3/5, 4/5 and 5/5, in which a preferred and not 25 restrictive embodiment is shown.
Way of carrying out the invention With reference to the above mentioned tables:
= Fig. 1 is the sofa structure according to the invention;
= Fig. 2 shows the base structure ;
= Figs. 3 and 4 show a detail of the plate called "hinge", respectively;
= Fig. 5 shows the hinge between plate and frame;
= Fig. 6 shows the detail of the shaped pin;
io = Fig. 7 shows the coupling between cam and roll;
= Fig. 8 shows the front leg of the structure;
= Fig. 9 shows the fastening of the front leg;
= Fig. 10 shows a detail of the second fixation plate.
As already mentioned, the main purpose of the invention is to is reduce as much as possible the clearance of the sofa base structure (1). Fig. 2 shows the sofa base structure that supports the hinged frames in the bed and sofa configurations, and comprises two identical elements, called "small legs" (4), and a spacer (5). Such a spacer is a rectangular pipe, which constrains 2o and lets the two "small legs" be parallel to each other. In Fig. 3 is shown the plate (6) which allows the assembly between "small leg" and spacer. Said plate consists of two flat surfaces and, due to its function, is called "hinge". It is fixed on the "small leg"
and has an almost rectangular hole (7), with a tapered side (8).
25 As observed in Fig. 4, tightening the bolt (9), the spacer (5) is forced in the tapering (8) of the holes (7). Therefore, thanks to this assembly process, three important conditions are matched:
the clearance elimination in the coupling between hinge (6) and spacer (5); the perfect perpendicularity between spacer (5) and small leg (4); the assembly of the sofa base structure by means of two bolts only (one for each leg).
Another function of the plate called "hinge" (6) is to articulate a frame (10) around a hole (11), as shown in Fig. 5. The frame rotates, moving from a horizontal position to a second desired lo position defined by a block element. The desired position is defined by the holes on the frame, meaning that to change inclination one should change the hole. The rotation axis and the block element are realized by a shaped pin (12), whose end (12'), engaged into a hole of the frame, works as a rotation axis; while the pin portion (12") works as a block element of the frame. A
return spring moves the pin: loosing the spring tension, the pin is inserted in both holes of the two "hinge" plates (6). By a simple movement and without any tool, the frame (10) can be disengaged and fixed on another hole, obtaining a different inclination of the sofa back.
On the free end of the "small leg" (4) there is a roller (13) whose cross section is complementary to the profile of a cam (14) to lodge it when the mechanism is in the sofa configuration, as shown in Fig. 7. The roller has a central groove (13'), few millimetres wide, in which the cam is lodged. This allows the self-centring of the cam and the roll, preventing bad functioning due to misalignment. A second element (15) is connected to the cam (14). It is named "front leg" and can rotate around an axis up to a certain interval, as shown in Fig. 8. Like with the sofa seat, also the front leg (15) should be fixed to a certain angle.
The desired position is obtained by an additional plate (16), which is fixed by a single bolt and has two block elements: the first one (18) realized on the leg, the second one realized on the cam. By means of these block elements, the plate keeps the leg io in the desired position. The block elements can be realized by pins, either inserted in complementary holes or working on the external profile of the leg (15) or the cam (14). In Fig. 9, an embodiment of the described plate is shown. A further functional feature of the fixing plate is a portion (20) at 90 Is degrees to the fixed one, having a number of holes, to be used to fix the panels of different sofa models.
As mentioned, a further aim of the invention is the reduction of the number of bolts in the sofa assembly procedure. The known art requires 14 bolts, the present invention only 6. In fact, each 20 side of the frame has 3 bolts: the first one to fix the spacer (5) to the "small leg" (4), the second to fix the cam (14) to the frame and the third one to fix the back leg (21) to the seat frame (2).
Claims (10)
1) Sofa bed provided with an innovative position adjustment mechanism and a fast assembly process, comprising padding elements, a base structure (1) a mutually hinged number of frames (2), supported by said base structure and supporting said padding elements; and a kinematic mechanism (3) to change the frames positions; moreover, the base structure comprises two identical elements, named "small legs" (4), a spacer (5), and is characterised by a "hinge" plate (6), fixed on the small leg (4), which consists of two flat surfaces with an almost rectangular hole (7); said hole is tapered on one side (8) to lodge the spacer (5).
2) Sofa bed according to claim 1, wherein said spacer (5) is forced in the tapering (8) of the holes (7) by only one bolt.
3) Sofa bed according to claim 1 or 2, wherein said "hinge"
plate has a pin (12), which allows the articulation of frame (10) around a hole (11) and the frame stop; said pin has an end (12') engaged in the hole (11) of the frame (10), that works as a rotation axis, and a portion (12") that works as a block element of the frame (10).
plate has a pin (12), which allows the articulation of frame (10) around a hole (11) and the frame stop; said pin has an end (12') engaged in the hole (11) of the frame (10), that works as a rotation axis, and a portion (12") that works as a block element of the frame (10).
4) Sofa bed according to claim 3, wherein said pin (12) is forced by a return spring: loosing the spring tension, the pin is inserted in both holes of the two "hinge" plates (6);
without using any tool and overcoming the spring preload, the frame (10) can be disengaged and fixed to another hole, obtaining a different inclination of the sofa back.
without using any tool and overcoming the spring preload, the frame (10) can be disengaged and fixed to another hole, obtaining a different inclination of the sofa back.
5) Sofa bed according to one of the claim from 1 to 4, wherein, on the free end of the "small leg" (4), there is a roller (13) which has a cross section complementary to the profile of a cam (14); being the mechanism in the sofa configuration, the two sections are each other engaged; said roller (13) is characterised by a central groove (13'), few millimetres wide, in which the cam is lodged.
6) Sofa bed according to one of the previous claims, wherein a front leg (15) can rotate around an axis up to a certain interval.
7) Sofa bed according to claim 6, wherein the desired position of said front leg (15) is realized by a further plate (16), fixed by a single bolt and having two block elements: the first one (18) realized on the leg, the second one realized on the cam.
8) Sofa bed according to claim 7, wherein said block elements can be realized by pins, either inserted in complementary holes or working on the external profile of the leg (15) or the cam (14).
9) Sofa bed according to claim 7 or 8, wherein said fixing plate (16) has a portion (20) at 90 degrees to the fixed one on the front leg (15), having a number of holes, to be used to fix the panels of different sofa models.
10) Sofa bed according to one of the previous claims, wherein it needs only 6 bolts for the whole assembly procedure. In fact, each structure side has 3 bolts: the first one to fix the spacer (5) to the "small leg" (4), the second to fix the cam (14) to the frame and the third one to fix the back leg (21) to the seat frame (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBA04A000010 | 2004-03-18 | ||
| IT000010A ITBA20040010A1 (en) | 2004-03-18 | 2004-03-18 | SOFA BED EQUIPPED WITH INNOVATIVE ELEMENTS FOR ASSEMBLY AND POSITION ADJUSTMENT. |
| PCT/IB2005/000523 WO2005087052A1 (en) | 2004-03-18 | 2005-02-28 | Sofa-bed with innovative elements for assembly and position adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2560077A1 true CA2560077A1 (en) | 2005-09-22 |
Family
ID=34966559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002560077A Abandoned CA2560077A1 (en) | 2004-03-18 | 2005-02-28 | Sofa-bed with innovative elements for assembly and position adjustment |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20080148478A1 (en) |
| EP (1) | EP1725143B1 (en) |
| CN (1) | CN1917795A (en) |
| AT (1) | ATE407595T1 (en) |
| CA (1) | CA2560077A1 (en) |
| DE (1) | DE602005009670D1 (en) |
| IT (1) | ITBA20040010A1 (en) |
| PL (1) | PL1725143T3 (en) |
| UA (1) | UA85408C2 (en) |
| WO (1) | WO2005087052A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9314104B2 (en) | 2009-12-14 | 2016-04-19 | Sauder Manufacturing Company | Sleep system mechanism |
| US9027178B2 (en) | 2010-06-25 | 2015-05-12 | Sauder Manufacturing Co. | Sleep system |
| US9125496B2 (en) | 2010-06-25 | 2015-09-08 | Sauder Manufactering Co. | Sleep system |
| USRE48344E1 (en) | 2010-06-25 | 2020-12-08 | Sauder Manufacturing Co. | Sleep system |
| USD739664S1 (en) | 2010-08-20 | 2015-09-29 | Sauder Manufacturing Co. | Furniture convertible between sofa and sleep configurations |
| CN102894711B (en) * | 2012-10-22 | 2014-10-22 | 上海电机学院 | Four-side adjustable convertible sofa |
| US10772436B2 (en) * | 2017-08-02 | 2020-09-15 | Michael Monir Tadros | Convertible sofa bed |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2276657B (en) * | 1993-03-30 | 1995-06-28 | Elementer Ind Design Ltd | Door lock mechanism |
| GB2291464A (en) * | 1994-07-15 | 1996-01-24 | Elementer Ind Design Ltd | Fixing for door lock pinion |
| US6061848A (en) * | 1997-09-08 | 2000-05-16 | Otis Bed Manufacturing Company, Inc. | Automatic futon frame |
| IT1307888B1 (en) * | 1999-01-11 | 2001-11-19 | Gruppo Ind Styling Srl | SOFA-BED EQUIPPED WITH INNOVATIVE MECHANISMS FOR THE ADJUSTMENT OF THE POSITIONS AND QUICK PROCEDURE FOR THE ASSEMBLY. |
| ITBA20010006A1 (en) * | 2001-01-16 | 2002-07-16 | Gruppo Ind Styling Srl | INNOVATIVE MECHANISM FOR SOFAS - BED. |
-
2004
- 2004-03-18 IT IT000010A patent/ITBA20040010A1/en unknown
-
2005
- 2005-02-28 US US10/589,828 patent/US20080148478A1/en not_active Abandoned
- 2005-02-28 DE DE602005009670T patent/DE602005009670D1/en not_active Expired - Fee Related
- 2005-02-28 AT AT05726573T patent/ATE407595T1/en not_active IP Right Cessation
- 2005-02-28 UA UAA200610577A patent/UA85408C2/en unknown
- 2005-02-28 CN CNA2005800049534A patent/CN1917795A/en active Pending
- 2005-02-28 EP EP05726573A patent/EP1725143B1/en not_active Not-in-force
- 2005-02-28 CA CA002560077A patent/CA2560077A1/en not_active Abandoned
- 2005-02-28 WO PCT/IB2005/000523 patent/WO2005087052A1/en active IP Right Grant
- 2005-02-28 PL PL05726573T patent/PL1725143T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP1725143B1 (en) | 2008-09-10 |
| CN1917795A (en) | 2007-02-21 |
| EP1725143A1 (en) | 2006-11-29 |
| DE602005009670D1 (en) | 2008-10-23 |
| WO2005087052A1 (en) | 2005-09-22 |
| UA85408C2 (en) | 2009-01-26 |
| PL1725143T3 (en) | 2009-04-30 |
| US20080148478A1 (en) | 2008-06-26 |
| ITBA20040010A1 (en) | 2004-06-18 |
| ATE407595T1 (en) | 2008-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2560077A1 (en) | Sofa-bed with innovative elements for assembly and position adjustment | |
| AU2008201092B2 (en) | Security fastening structure of a base of a baby bed for babies to play in | |
| RU2000115707A (en) | FOLDING CHAIR | |
| WO2007044288B1 (en) | Rocker spring assembly | |
| US6237319B1 (en) | Adjustable wristband link | |
| US11375822B2 (en) | Folding bed system | |
| CA2082172C (en) | Hinge for convertible sofa | |
| AT8579U1 (en) | FITTING FOR SWIVELING THE UPPER PART OF A DIVIDED BACKREST OF SEATING FURNITURE | |
| US5722101A (en) | Multi-framed convertible article of furniture | |
| EP1020142B1 (en) | Sofa bed comprising innovating mechanisms for position adjustment and quick assembly | |
| US6738997B2 (en) | Mechanism for a divan bed | |
| US20050028272A1 (en) | Futon frame with load bearing detent apparatus | |
| CN216741316U (en) | Folding screen door and window | |
| AT514820B1 (en) | backrest fitment | |
| RU2203604C1 (en) | Sofa-bed | |
| DE3939792C2 (en) | Fitting for a seating that can be converted into a bed | |
| AT515403A1 (en) | Seating and reclining furniture | |
| US6286159B1 (en) | Sofa bed structure | |
| EP0807390B1 (en) | Mechanism for a sofa-bed enabling the adjustment in three positions | |
| EP2544568A1 (en) | Piece of furniture and fitting for a piece of furniture | |
| MXPA03011687A (en) | Device for adjusting the position of at least one movable part of a vehicle seat. | |
| WO2005087050A3 (en) | Articulated fitting for a head part frame of a foldable mattress frame | |
| ES2189600A1 (en) | Recliner frame having adjustable members with high load-bearing capabilities | |
| ES1045279U (en) | Improved linkage mechanism for the conversion of sofa beds. (Machine-translation by Google Translate, not legally binding) | |
| ES1042331U (en) | Furniture perfected for transformation articulated beds concealable seat. (Machine-translation by Google Translate, not legally binding) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |