CN211299185U - Backrest and for callus on sole translation device and sofa - Google Patents

Abstract

The utility model provides a backrest and a foot pad translation device, which comprises a fixed seat, a backrest support component, a foot pad support component and a connecting rod mechanism, wherein the backrest support component comprises a sliding part and a supporting part, the foot pad support component is arranged on the fixed seat in a sliding way and has an extending state and a folding state relative to the fixed seat, the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is movably connected with the sliding part in a position manner, the other end of the first connecting rod is hinged with the second connecting rod, the other end of the second connecting rod is hinged with one end of the third connecting rod, the other end of the third connecting rod is hinged with the foot pad support component, the second connecting rod is hinged with the supporting part, the sliding part is operated to slide relative to the fixed seat so as to adjust the position of the backrest relative to a sofa seat, meanwhile, the foot pad support component is changed between, convenient operation, simple structure improves user's experience degree greatly.

Description

Backrest and for callus on sole translation device and sofa

Technical Field

The utility model relates to a sofa part technical field especially relates to a lean against with callus on sole with translation device and sofa.

Background

The backrest of the old-fashioned sofa is fixed on the sofa seat, so that the size of the space defined by the backrest and the sofa seat for people to sit is not changed, and consumers of different age classes are difficult to obtain comfortable use feeling on the sofa due to different statures. In addition, since the old sofa has only a function of seating a person, it cannot satisfy different use requirements of consumers.

In order to improve the above disadvantages, some sofas have been structurally modified to provide the sofa with further functions of leaning on or lying down for rest. The means for realizing these new functions is to install an adjusting mechanism in the sofa so that the headrest or backrest of the sofa can be adjusted in angle and position, thereby changing the usage mode of the sofa.

In prior art, sofa backrest and sofa callus on the sole all are single guiding mechanism, are equipped with sofa backrest and use guiding mechanism and sofa callus on the sole respectively, when needing to adjust sofa backrest promptly, adopt sofa backrest and use guiding mechanism promptly, when needing to adjust sofa callus on the sole, adopt sofa callus on the sole promptly and use guiding mechanism, lead to the device in the sofa complicated, and the person leans on or lies and lie and rest and generally need adjust sofa backrest and sofa callus on the sole simultaneously in order to obtain suitable length, but prior art's guiding mechanism is inconvenient.

Therefore, it is necessary to provide a translation device for backrest and foot pad to adjust the appropriate length and angle of the sofa backrest and sofa foot pad simultaneously to solve the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure's back and translation device for callus on the sole can be used for adjusting simultaneously and lean on the position with the relative sofa seat of callus on the sole to satisfy user's user demand and experience degree.

Another object of the present invention is to provide a sofa with the above backrest and footrest using the translation device.

In order to achieve the above object, the present invention provides a backrest and a foot pad translation device for adjusting the position of a backrest and a foot pad relative to a sofa seat simultaneously, comprising a fixing seat, a backrest support assembly, a foot pad support assembly and a link mechanism, wherein the backrest support assembly comprises a sliding part and a supporting part, the sliding part is slidably disposed on the fixing seat, the supporting part is fixed on one side of the fixing seat, the foot pad support assembly is slidably disposed on the fixing seat and has an extended state and a retracted state relative to the fixing seat, the link mechanism comprises a first link, a second link and a third link, one end of the first link is movably connected to the sliding part to form a first connection point, the other end of the first link is hinged to the second link to form a second connection point, the other end of the second link is hinged to one end of the third link to form a third connection point, the other end of the third connecting rod is hinged to the foot pad supporting assembly to form a fourth connecting point, the second connecting rod is located between the second connecting point and the third connecting point and is hinged to the supporting portion to form a fifth connecting point, the first connecting point, the second connecting point, the third connecting point, the fourth connecting point and the fifth connecting point form a four-connecting-rod structure, the sliding portion is operated to slide relative to the fixing seat to adjust the position of the backrest relative to the sofa seat, and meanwhile, the foot pad supporting assembly is changed between the extending state and the folding state to adjust the position of the foot pad relative to the sofa seat under the action of the connecting rod mechanism.

Compared with the prior art, the translation device is used to back and callus on the sole of this application, the back is installed on back supporting component, the fixing base is installed in the sofa seat, the callus on the sole is installed in callus on the sole supporting component, utilize the sliding part to slide on the fixing base, thereby it removes to drive the supporting component that leans against, in order to change the relative distance of leaning against with the sofa seat, the removal of sliding part can link and drive first connecting rod, second connecting rod and third connecting rod motion simultaneously, under four-bar linkage's effect, link mechanism drives callus on the sole supporting component and is in the state of stretching out or receipts and close the state, in order to change the relative distance of callus on the sole and sofa seat, thereby realize adjusting simultaneously and lean against the position with the relative sofa seat of callus on the sole, convenient operation, simple structure improves user's experience.

Preferably, the first connecting rod has a limiting groove, and the sliding part extends into the limiting groove and can move in the limiting groove.

Preferably, the fixing seat is provided with two fixing brackets along the sliding direction, and each fixing bracket is provided with a sliding rail for the sliding part and the foot pad supporting assembly to slide.

Preferably, the two ends of the fixing seat are provided with limiting parts, the fixing support is located between the two limiting parts, and the limiting parts are used for limiting the sliding amplitude of the sliding rail.

Preferably, the foot pad support assembly includes a first foot pad bracket, a second foot pad bracket and a fixing rod located between the first foot pad bracket and the second foot pad bracket, the first foot pad bracket and the second foot pad bracket are respectively slidably disposed at two sides of the fixing base, and the third connecting rod is hinged to the fixing rod to form the fourth connecting point.

Preferably, the backrest support assembly further comprises a backrest installation seat, the bottom of the backrest installation seat is connected with the sliding portion, and the top of the backrest installation seat is provided with an installation plate.

Preferably, the fixing base is located the back support assembly with the position between the callus on the sole support assembly has fixed horizontal pole, the sliding part includes driving motor, slider and slide bar, the one end of slide bar is fixed in fixed horizontal pole, the other end of slide bar is unsettled setting, the both sides of slider slide to locate the fixing base just slides and wears to locate the slide bar, driving motor drives the slider is followed the slide bar slides in order to adjust the relative sofa seat's of back position.

Preferably, the two ends of the supporting part are connected with the fixed seat, a certain distance is reserved between the two ends of the supporting part and the fixed seat, and one end of the fixed cross rod extends to be connected with the supporting part.

Preferably, one end of the second connecting rod, which is close to the second connecting point, is bent and extended to form a first connecting piece, a second connecting piece is arranged perpendicular to the supporting portion, an elastic piece is arranged between the first connecting piece and the second connecting piece, and the elastic piece constantly enables the sliding portion to move towards one side of the direction of the foot pad supporting assembly.

Correspondingly, this application still provides a sofa, including sofa seat, back, callus on the sole and back and for the callus on the sole translation device, can be used for adjusting simultaneously and lean on the relative sofa seat's of callus on the sole position, convenient operation, simple structure.

Drawings

Fig. 1 is a schematic perspective view of the translation device for the backrest and the foot pad of the present invention.

Fig. 2 is a bottom plan view of the backrest and foot pad translation device of fig. 1.

Fig. 3 is a side view of the translation device for the backrest and the foot pad shown in fig. 1.

Fig. 4 is a perspective view of the other state of the translation device for the backrest and the foot pad of the present invention.

Fig. 5 is a bottom plan view of the backrest and foot pad translation device of fig. 4.

Fig. 6 is a side view of the translation device for the backrest and footpad shown in fig. 4.

Fig. 7 is a partially exploded view of the translation device for the backrest and foot pad shown in fig. 5.

Fig. 8 is a schematic structural view of the sofa of the present application.

Fig. 9 is a schematic structural view of the sofa of the present application in another position.

Description of the symbols:

the backrest comprises a fixed seat 10, a fixed support 11, a slide rail 111, a limiting part 15, a fixed cross bar 17, a backrest support assembly 30, a slide part 31, a driving motor 311, a sliding part 313, a slide rod 315, an inserting rod 317, a supporting part 33, a second connecting part 331, a backrest mounting seat 35, a mounting plate 351, a foot pad support assembly 50, a first foot pad support 51, a second foot pad support 53, a fixed rod 55, a link mechanism 70, a first connecting rod 71, a limiting groove 711, a second connecting rod 73, a first connecting part 731, a third connecting rod 75, an elastic part 90, a sofa seat 100, a backrest 130, a foot pad 150, a backrest and foot pad translation device 170, a first connecting point A1, a second connecting point A2, a third connecting point A3, a fourth connecting point A4 and a fifth connecting point A5.

Detailed Description

To explain technical solutions, structural features, and achieved technical effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with specific embodiments.

Referring to fig. 1-6, the backrest 130 and the foot pad 150 translation device 170 of the present application for adjusting the positions of the backrest 130 and the foot pad 150 relative to the sofa 100 includes a fixing base 10, a backrest support assembly 30, a foot pad support assembly 50 and a link mechanism 70, the backrest support assembly 30 includes a sliding portion 31 and a supporting portion 33, the sliding portion 31 is slidably disposed on the fixing base 10, the supporting portion 33 is fixed on one side of the fixing base 10, the foot pad support assembly 50 is slidably disposed on the fixing base 10 and has an extended state (refer to fig. 4) and a retracted state (refer to fig. 1) relative to the fixing base 10, the link mechanism 70 includes a first link 71, a second link 73 and a third link 75, one end of the first link 71 is movably connected to the sliding portion 31 to form a first connection point a1, the other end of the first link 71 is hinged to the second link 73 to form a second connection point a2, the other end of the second link 73 is hinged to one end of the third link 75 to form a third connection point A3, the other end of the third link 75 is hinged to the footrest support assembly 50 to form a fourth connection point a4, the second link 73 is hinged to the support portion 33 at a position between the second connection point a2 and the third connection point A3 to form a fifth connection point a5, the first connection point a1, the second connection point a2, the third connection point A3, the fourth connection point a4 and the fifth connection point a5 form a four-link structure, the sliding portion 31 is operated to slide relative to the fixed seat 10 to adjust the position of the backrest 130 relative to the sofa seat 100, and the conversion of the footrest support assembly 50 between the extended state and the retracted state is achieved by the action of the link mechanism 70 to adjust the position of the footrest 150 relative to the sofa seat 100. Further, the first link 71 has a limiting groove 711, and the sliding portion 31 extends into the limiting groove 711 and can move in the limiting groove 711, that is, the sliding portion 31 moves in the limiting groove 711 to drive the first link 71 to move.

Referring to fig. 2, the fixing base 10 is provided with two fixing brackets 11 along the sliding direction, and the fixing brackets 11 are provided with slide rails 111 (refer to fig. 7) for the sliding portion 31 and the foot pad supporting assembly 50 to slide. Further, both ends of the fixing seat 10 are provided with limiting portions 15, the fixing bracket 11 is located between the two limiting portions 15, and the limiting portions 15 are used for limiting the sliding amplitude of the sliding rail 111. The limiting portion 15 is used to limit the sliding of the backrest support unit 30 and the footrest support unit 50 on the slide rail 111, and will not fall off the slide rail 111. The holder 10 may be mounted to a sofa 100 of a sofa or to a seat of another chair.

Referring to fig. 5, the foot pad supporting assembly 50 includes a first foot pad bracket 51, a second foot pad bracket 53 and a fixing rod 55 located between the first foot pad bracket 51 and the second foot pad bracket 53, the first foot pad bracket 51 and the second foot pad bracket 53 are respectively slidably disposed at two sides of the fixing base 10, and the third connecting rod 75 is hinged to the fixing rod 55 to form a fourth connecting point a 4. The first foot pad support 51 and the second foot pad support 53 are respectively slidably disposed on the two fixing supports 11, a fixing rod 55 is disposed between the first foot pad support 51 and the second foot pad support 53 to improve stability, the fixing rod 55 is driven to move in a sliding direction by the movement of the third connecting rod 75, and the fixing rod 55 is linked to drive the first foot pad support 51 and the second foot pad support 53 to move, so that the first foot pad support 51 and the second foot pad support 53 have an extending state (see fig. 4) and a retracting state (see fig. 1) relative to the fixing base 10.

Referring to fig. 4, the backrest support assembly 30 further includes a backrest mounting seat 35, a bottom of the backrest mounting seat 35 is connected to the sliding portion 31, and a top of the backrest mounting seat 35 has a mounting plate 351. The mounting plate 351 may be used to secure the backrest 130 of a sofa or the backrest 130 of a seat. The sliding part 31 is operated to slide and drive the backrest mounting seat 35 to move, thereby driving the backrest 130 to move. Further, the fixed cross bar 17 is arranged at a position of the fixed seat 10 between the backrest support assembly 30 and the foot pad support assembly 50, the sliding portion 31 includes a driving motor 311, a sliding member 313 and a sliding rod 315, one end of the sliding rod 315 is fixed to the fixed cross bar 17, the other end of the sliding rod 315 is suspended, two sides of the sliding member 313 are slidably disposed on the fixed seat 10 and slidably penetrate through the sliding rod 315, and the driving motor 311 drives the sliding member 313 to slide along the sliding rod 315 to adjust a position of the backrest 130 relative to the sofa seat 100. The fixing rail 17 is positioned between the two fixing brackets 11 to increase the stability of the two fixing brackets 11, and also provides a mounting position of the sliding portion 31. One end of the sliding rod 315 is fixed on the fixed cross bar 17, the other end is suspended, and the driving motor 311 is installed at a position of the sliding rod 315 close to the fixed cross bar 17. The sliding rod 315 slides through the sliding member 313, that is, the sliding member 313 can move on the sliding rod 315, and the sliding member 313 is driven to move on the sliding rod 315 by the driving motor 311. The sliding member 313 has an inserting rod 317, the inserting rod 317 is inserted into the limiting groove 711, when the sliding member 313 moves, the inserting rod 317 drives the first connecting rod 71 to move, and the inserting rod 317 moves in the limiting groove 711 to realize the connection with a movable position.

Referring to fig. 5, two ends of the supporting portion 33 are connected to the fixing base 10, a certain distance is formed between the two ends and the fixing base 10, and one end of the fixed cross bar 17 extends to be connected to the supporting portion 33. The fixed cross bar 17 is connected to the support portion 33 to improve stability of the support portion 33. Further, one end of the second link 73 near the second connection point a2 is bent and extended to form a first connection element 731, the vertical support portion 33 is provided with a second connection element 331, an elastic element 90 is arranged between the first connection element 731 and the second connection element 331, and the elastic element 90 constantly moves the sliding portion 31 to one side of the direction of the footrest supporting assembly 50. The resilient member 90 is a spring that provides a restoring force to the foot pad support assembly 50 to return to the retracted position.

Referring to fig. 8-9, the present application further provides a sofa comprising a sofa seat 100, a backrest 130, a foot pad 150, and a translation device 170 for the backrest 130 and the foot pad 150, for adjusting the position of the backrest 130 and the foot pad 150 relative to the sofa seat 100. The backrest 130 is mounted on the backrest support assembly 30, the fixing base 10 is mounted in the sofa 100, and the foot pad 150 is mounted on the foot pad support assembly 50, so that the positions of the backrest 130 and the foot pad 150 relative to the sofa 100 can be changed simultaneously by the translation device 170 via the backrest 130 and the foot pad 150.

The working principle of the translation device 170 for the backrest 130 and the foot pad 150 of the present application is explained in detail below with reference to fig. 1-9:

the backrest 130 is mounted on the backrest mounting seat 35, the fixing seat 10 is mounted in the sofa 100, and the foot pad 150 is mounted on the first foot pad bracket 51 and the second foot pad bracket 53. The driving motor 311 drives the sliding member 313 to slide along the sliding rod 315, the backrest mounting seat 35 located on the sliding member 313 drives the backrest 130 to move, the insertion rod 317 of the sliding member 313 drives the first connecting rod 71 to move, the second connecting rod 73 and the third connecting rod 75 are driven to move in a linkage manner, and under the action of the four-bar linkage structure, the third connecting rod 75 drives the fixing rod 55 to move along the length direction of the fixing bracket 11, so as to drive the first foot pad bracket 51 and the second foot pad bracket 53 to be changed between the extending state and the retracting state, so as to change the position of the foot pad 150 relative to the sofa 100, thereby simultaneously adjusting the positions of the backrest 130 and the foot pad 150 relative to the sofa 100.

Compared with the prior art, the backrest 130 and the foot pad 150 of the present application use the translation device 170, the backrest 130 is installed on the backrest support assembly 30, the fixing base 10 is installed in the sofa seat 100, the foot pad 150 is installed in the foot pad support assembly 50, the sliding portion 31 is utilized to slide on the fixing base 10, thereby driving the backrest support assembly 30 to move, so as to change the relative distance between the backrest 130 and the sofa seat 100, meanwhile, the movement of the sliding portion 31 can drive the first connecting rod 71, the second connecting rod 73 and the third connecting rod 75 to move in a linkage manner, under the effect of the four-bar linkage structure, the connecting rod mechanism 70 drives the foot pad support assembly 50 to be in a stretching state or a folding state, so as to change the relative distance between the foot pad 150 and the sofa seat 100, thereby simultaneously adjusting the positions of the backrest 130 and the foot pad 150 relative to the sofa seat 100, the operation is convenient, the structure is simple.

The above disclosure is only a preferred embodiment of the present application and should not be taken as limiting the scope of the present application, so that the claims of the present application are covered by the appended claims.

Claims (10)

1. A translation device for a backrest and a foot pad is used for simultaneously adjusting the positions of the backrest and the foot pad relative to a sofa seat and is characterized by comprising a fixed seat, a backrest support component, a foot pad support component and a connecting rod mechanism,

the backrest support component comprises a sliding part and a supporting part, the sliding part is arranged on the fixed seat in a sliding way, the supporting part is fixed on one side of the fixed seat, the foot pad support component is arranged on the fixed seat in a sliding way and has an extending state and a folding state relative to the fixed seat,

the link mechanism comprises a first link, a second link and a third link, one end of the first link is movably connected with the sliding part in a position mode to form a first connecting point, the other end of the first link is hinged with the second link to form a second connecting point, the other end of the second link is hinged with one end of the third link to form a third connecting point, the other end of the third link is hinged with the foot pad supporting component to form a fourth connecting point, the second link is located between the second connecting point and the third connecting point and is hinged with the supporting part to form a fifth connecting point, the first connecting point, the second connecting point, the third connecting point, the fourth connecting point and the fifth connecting point form a four-link structure, and the sliding part is operated to slide relative to the fixed seat to adjust the position of the backrest relative to the sofa seat, meanwhile, the foot pad supporting component is changed between the extending state and the retracting state under the action of the connecting rod mechanism so as to adjust the position of the foot pad relative to the sofa seat.

2. The device of claim 1, wherein the first link has a slot, and the sliding portion extends into the slot and is movable within the slot.

3. The device for translating a backrest and a foot pad according to claim 1, wherein the fixing base is provided with two fixing brackets along a sliding direction, and the fixing brackets are provided with sliding rails for the sliding part and the foot pad supporting assembly to slide.

4. The backrest and foot pad translation device according to claim 3, wherein two ends of the fixing seat are provided with limiting parts, the fixing bracket is located between the two limiting parts, and the limiting parts are used for limiting the sliding amplitude of the sliding rail.

5. The backrest and footrest translation device according to claim 1, wherein the footrest support assembly includes a first footrest bracket, a second footrest bracket, and a fixing rod disposed between the first and second footrest brackets, the first and second footrest brackets are slidably disposed at two sides of the fixing base, respectively, and the third link is hinged to the fixing rod to form the fourth connection point.

6. The translation device for a backrest and a footrest according to claim 1, wherein the backrest support assembly further comprises a backrest mounting seat, a bottom of the backrest mounting seat is connected to the sliding portion, and a top of the backrest mounting seat is provided with a mounting plate.

7. The backrest and footrest translation device as claimed in claim 1, wherein the fixing seat has a fixed cross bar at a position between the backrest support assembly and the footrest support assembly, the sliding portion includes a driving motor, a sliding member and a sliding bar, one end of the sliding bar is fixed to the fixed cross bar, the other end of the sliding bar is suspended, two sides of the sliding member are slidably disposed on the fixing seat and slidably disposed through the sliding bar, and the driving motor drives the sliding member to slide along the sliding bar to adjust the position of the backrest relative to the sofa seat.

8. The translation device for a backrest and a foot pad according to claim 7, wherein two ends of the supporting part are connected with the fixing seat, a certain distance is formed between the two ends and the fixing seat, and one end of the fixing cross rod extends to be connected with the supporting part.

9. The device for translating a backrest and a foot pad according to claim 1, wherein an end of the second connecting rod near the second connecting point is bent and extended to form a first connecting member, a second connecting member is provided perpendicular to the supporting portion, and an elastic member is provided between the first connecting member and the second connecting member, and the elastic member constantly moves the sliding portion toward one side of the direction of the foot pad supporting assembly.

10. A sofa comprising a sofa seat, a backrest and a footrest, and further comprising a device for translating the backrest and the footrest according to any one of claims 1-9 for adjusting the position of the backrest and the footrest relative to the sofa seat.

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