CN210471586U - An adjustment device for a seat unit and a seat unit - Google Patents
An adjustment device for a seat unit and a seat unit Download PDFInfo
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- CN210471586U CN210471586U CN201920438648.5U CN201920438648U CN210471586U CN 210471586 U CN210471586 U CN 210471586U CN 201920438648 U CN201920438648 U CN 201920438648U CN 210471586 U CN210471586 U CN 210471586U
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- backrest
- seating unit
- seat
- adjustment device
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- 230000005540 biological transmission Effects 0.000 claims abstract description 17
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- 238000000034 method Methods 0.000 description 10
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- 230000008859 change Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- 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
- A47C1/0355—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 actuated by linkages, e.g. lazy-tongs mechanisms
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- 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
- A47C17/17—Seating furniture changeable to beds by tilting or pivoting the back-rest with coupled movement of back-rest and seat
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- 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
- A47C17/86—Parts or details specially adapted for beds, sofas or couches not fully covered by any single one of groups A47C17/02 - A47C17/84
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- 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
- A47C7/002—Chair or stool bases
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Dentistry (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
本实用新型涉及一种用于座位单元的调节装置及座位单元，所述调节装置可将所述座位单元调节至坐姿、伸展姿和躺姿。所述调节装置包括依次连接设置的靠背连接组件、中间传动组件以及置脚部连接组件；所述靠背连接组件包括靠背连接块，所述靠背连接块用于连接和调整座位单元靠背；所述中间传动组件包括座框，所述座框用于连接和调整座位单元座部；所述置脚部连接组件包括置脚连接块，所述置脚连接块用于连接座位单元置脚部。本实用新型通过调节装置对靠背、座部和置脚部进行相应高度和角度的协同调节，使得最终人在躺姿时腿部和头部能够保持大致的水平，有一种躺着完全放松的舒适感，解决了现有技术中座位单元调节困难，躺姿时舒适性差的技术问题。
The utility model relates to an adjusting device for a seat unit and the seat unit, the adjusting device can adjust the seat unit to a sitting posture, a stretching posture and a lying posture. The adjusting device includes a backrest connecting assembly, an intermediate transmission assembly and a foot-positioning connecting assembly that are connected in sequence; the backrest connecting assembly includes a backrest connecting block, which is used to connect and adjust the seat unit backrest; the middle The transmission assembly includes a seat frame, and the seat frame is used for connecting and adjusting the seat part of the seat unit; the foot-setting part connecting assembly includes a foot-setting connecting block, and the foot-setting connecting block is used for connecting the foot-setting part of the seat unit. The utility model can coordinately adjust the corresponding heights and angles of the backrest, the seat and the feet by means of the adjusting device, so that the legs and the head of the final person can be kept roughly horizontal when the person is in a lying position, and there is a feeling of complete relaxation when lying down. It solves the technical problems of difficult adjustment of the seat unit in the prior art and poor comfort when lying down.
Description
Technical Field
The utility model relates to a seating unit field especially relates to an adjusting device and seating unit for seating unit.
Background
The seating unit is widely visible in daily life and is applied in a variety of settings, such as sofas, lounges, seats in theaters, seats in traffic, etc. common in furniture. With the development of science and technology and the increasing improvement of the living standard of people, the requirement of people on the comfort of the seat unit is higher and higher. While adjustable seating units are widely used in the prior art, typical seating units can be adjusted to include sitting, extended and lying positions. Wherein the sitting position is a standard stowed position with the seat in its most original position for normal use by a person sitting in daily life, with the seat portion in a generally horizontal orientation and the backrest arranged to be substantially upright; the extended position, commonly referred to as the TV position, extends the footrest forward of the seat portion while the backrest remains upright enough to allow the occupant of the seating unit to comfortably view television. And a reclined position (or lying position) in which the backrest is positioned rearwardly from the extended position at an obtuse angle to the seat for rest or sleep.
However, the prior art sofas have the following drawbacks:
the existing sofa with a grounded support is unsmooth in the posture conversion process, the posture change speed is slow, and the larger problem is that the sofa in the prior art only adjusts the corresponding angle of the feet and the backrest and is limited by the structure of the stretching posture, when the stretching posture is adjusted to the lying posture, the feet are far lower than the backrest, and a user still has the feeling of downward sliding of the gravity center when lying, so that the comfortable feeling of lying is not completely realized.
Disclosure of Invention
In order to solve the technical problem, the utility model provides an as unit adjustment mechanism carries out the cooperation regulation of corresponding height and angle to back, seat and foot placing portion through adjusting device for final people shank and head can keep roughly the level when lying the appearance, have one kind to lie the comfort of relaxing completely, have solved among the prior art seat unit regulation difficulty, the poor technical problem of travelling comfort when lying the appearance.
The technical effects of the utility model are through following realization:
an adjustment device for a seating unit which can be adjusted by the adjustment device to a sitting position, an extended position and a lying position, the three positions being similar to the positions of the adjustable seating unit mentioned in the introduction. The seat unit is adjusted from the sitting posture to the extending posture to be a first adjusting stage, in the first adjusting stage, the angle of the backrest is basically kept unchanged, the foot placing part extends upwards from the lowest point, the seat unit is adjusted from the extending posture to the lying posture to be a second adjusting stage, in the process of the second adjusting stage, the angle of the backrest is increased, and the foot placing part continues to be lifted until the final lying posture is adjusted.
The seat unit comprises a backrest, a seat part and a foot placing part; the adjusting device comprises a backrest connecting assembly, a middle transmission assembly and a foot placing part connecting assembly which are sequentially connected; the backrest connecting assembly comprises a backrest connecting block, and the backrest connecting block is used for connecting and adjusting the backrest; the intermediate transmission assembly comprises a seat frame, and the seat frame is used for connecting and adjusting the seat; the foot placing part connecting assembly comprises a foot placing connecting block which is used for connecting the foot placing part; the angle variation of the backrest connecting block in the second adjusting stage is not less than 40 degrees, and the angle variation of the seat frame in the second adjusting stage is not less than 5 degrees. Through the wide-angle adjustment to the back for when lying the appearance, the back is close to the level as far as possible, the peak of back also descends as far as possible, and adjust the seat frame through synchronous simultaneously, the seat frame descends near the one end of back, the seat frame is close to the one end of putting the foot and rises, the angle change is not less than 5, the change of angle so, further provide the distance that descends for the back and raised simultaneously and put the foot, thereby finally make the back and put the foot and be close the level, make the level that the user lain as far as possible when lying the appearance, thereby more comfortable.
Further, when the lying position backrest and the foot placement part are approximately horizontal, the size difference range between the lying position backrest and the foot placement part is optimally controlled as follows: when the chair is in the lying position, the adjusting device adjusts the seat unit to ensure that the height difference between the highest point of the foot placing part and the highest point of the backrest is not more than 100 mm.
Furthermore, a plane parallel to the ground where the lowest point of the foot placing connecting block is located in the sitting posture is a reference plane, and the ratio of the height of the highest point of the foot placing connecting block from the reference plane in the lying posture to the height of the highest point of the foot placing connecting block from the reference plane in the sitting posture is not less than 1.2. So set up and guaranteed when extending the appearance, put foot portion and raised to suitable distance for user's shank keeps good position of sitting in comfortable while, and when switching into the appearance of lying, put foot portion and produce obvious raising, further lifting user's shank, let the user get into comfortable appearance state of lying as early as possible.
Further, the ratio of the distance between the highest point of the backrest connecting block and the reference surface between the sitting posture and the lying posture is preferably not less than 1.5, and due to the arrangement, when the sitting posture is changed into the lying posture, an obvious height difference exists, the upper half of the body of a person sinks to an obvious extent, and the user can enter a comfortable state of the lying posture by obviously raising the feet.
Further, back coupling assembling still includes back stopper and back gag lever post, the back connecting block with the back stopper is articulated, be equipped with on the back stopper with back gag lever post assorted spacing face the second regulation stage, the distance of moving down of the tie point of back connecting block with the back stopper is 30mm-100 mm. The lowest point of the backrest when the posture changes depends on the positions of the limiting rod and the limiting block. The limiting rod is set to be a descending limiting rod, and the descending limiting rod synchronously descends along with the backrest during adjustment, so that the descending space of the backrest is larger, and the backrest is easier to form a roughly horizontal position with the foot placing part.
Furthermore, an elastic buffer device is arranged between the backrest limiting block and the backrest limiting rod. The elastic buffer device is beneficial to reducing the impact of the head of the sofa in the descending process, and the sofa does not have too much rattle when the limiting block and the backrest limiting rod collide in the final state. Wherein the damping means may be a spring, a sponge or similar or a combination of these. In addition, a coil spring may be provided at the hinge of any of the hingedly connected parts of the adjustment device to provide damping for the purpose of damping oscillation.
Further, the rising distance of the foot placing connecting block in the second adjusting stage is 100 mm-250 mm according to the actual size of the seat unit.
Furthermore, the intermediate transmission assembly further comprises a rotary driving plate and at least three connecting rods, wherein two ends of each of the at least three connecting rods are respectively connected with the seat frame and the rotary driving plate, connecting points of the connecting rods and the rotary driving connecting plate are sequentially an A point, a B point and a C point from the backrest connecting block to the foot placing connecting block, the force arm between the A point and the B point is L1, the force arm between the B point and the C point is L2, and the proportion between the L1 and the L2 is not less than 0.15. Through setting the connecting point of the connecting rod, the rotating angle of the seat frame can meet corresponding requirements under the proportion, and the seat frame can smoothly drive the backrest to sink and the feet to rise.
Further, the first and second adjustment phases are driven by the same drive source. The adjustment can be realized by only one driving source in the whole adjustment process, and the cooperativity and the stability are better. The driving source is connected with the backrest connecting assembly or the middle transmission assembly, and the output end of the driving source is connected with the foot placing connecting assembly. Preferably, the driving source is a linear motor, the linear motor is provided with an output shaft, and the output shaft is connected with the foot placing part connecting assembly. The drive source may also be selected as a cylinder, which is more rapid to adjust.
Further, the present invention also protects a seating unit, characterized in that it comprises a seating unit adjustment device as described above.
As described above, the utility model discloses following beneficial effect has:
through the setting of the angle of adjustment and the height of the corresponding part of the seat unit adjusting device, the seat unit can enable a user to lie on the seat unit in a posture close to the lying posture when the user finally lies, the adjusting process is smooth, the seat unit more accords with the ergonomics, and the user is comfortable and easy.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of the seating unit of the present invention in a sitting position;
FIG. 2 is a schematic structural view of the seat unit in the extended position of the present invention;
FIG. 3 is a schematic structural view of the seating unit of the present invention in a lying position;
FIG. 4 is a schematic view of the seat unit adjustment mechanism of the present invention in a sitting position;
FIG. 5 is a schematic view of the seat unit adjustment mechanism of the present invention in an extended position;
FIG. 6 is a schematic structural view of the seat unit adjusting mechanism of the present invention in a lying position;
fig. 7 is a schematic view of a corresponding back side of the adjustment mechanism of the seating unit of fig. 6.
Wherein the reference numerals in the figures correspond to:
1. a backrest; 2. a seat portion; 3. placing a foot part; 10. a backrest connection assembly; 11. a backrest connecting block;
12. a backrest limiting block; 13 a backrest limiting rod; 20 an intermediate drive assembly; 21. a seat frame; 22. a rotary drive plate; 23. a first connecting rod; 24. a second connecting rod; 25, a third connecting rod; 30. a foot placing part connecting component; 31. put foot connecting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
a seat unit as shown in fig. 1 to 3, the seat unit comprising a backrest 1, a seat 2 and a footrest 3; fig. 1 to fig. 3 correspond to the sitting position, the stretching position and the lying position respectively in sequence and can be adjusted by the adjusting device. The adjustment of the seat unit from the sitting posture shown in fig. 1 to the stretching posture shown in fig. 2 is a first adjustment stage, in the first adjustment stage, the angle of the backrest 1 is basically kept unchanged, the foot placing part 3 extends upwards from the lowest point, the adjustment of the seat unit from the stretching posture shown in fig. 2 to the lying posture shown in fig. 3 is a second adjustment stage, in the second adjustment stage, the angle of the backrest 1 is increased, and the foot placing part 3 continues to be lifted until the adjustment to the final lying posture is finished. In fig. 3, the highest point of the backrest 1 and the highest point of the foot placing part 3 have the same height in the present embodiment, and in other embodiments, the height difference between the highest point of the backrest 1 and the highest point of the foot placing part 3 is not more than 100mm, preferably 30mm,50mm and 80 mm.
In particular, the adjustment means, see figures 4-6, correspond in sequence to the three states of the seating unit of figures 1-3, respectively. With reference to fig. 1-6, the adjusting device includes a backrest connecting assembly 10, a middle transmission assembly 20 and a foot placing connecting assembly 30, which are connected in sequence; the backrest connecting assembly 10 comprises a backrest connecting block 11, and the backrest connecting block 11 is used for connecting and adjusting the backrest 1; the intermediate transmission assembly 20 comprises a seat frame 21, the seat frame 21 is used for connecting and adjusting the seat 2; the foot placing part connecting assembly 30 comprises a foot placing connecting block 31, and the foot placing connecting block 31 is used for connecting the foot placing 3; the angle of the right plane of the back connecting block 11 with the horizontal plane in fig. 3 is not substantially changed from the angle with the horizontal plane in fig. 4, in the present embodiment, the angle of the right plane of the back connecting block 11 with the horizontal plane in fig. 4 is 117 °, the angle of the right plane of the back connecting block 11 with the horizontal plane in fig. 5 is 166 °, and the angle is 49 °. In other embodiments, the angle variation is selected in a range of not less than 40 °, further, 40 ° to 90 °, and preferably, the angle variation is in a range of 50 °, 55 °, 60 °. The seat frame 21 has a variation of 10 ° in the adjustment angle of the upper surface to the ground in the second stage, which is changed from 13 ° to 23 °. In other embodiments, the angular variation may be selected to be not less than 5 °, and may preferably be 8 °, 10 °, 15 °. The angle change further provides the descending distance for the backrest and raises the foot placing part at the same time, so that the backrest and the foot placing part are finally close to the horizontal, the user can lie down as much as possible in the lying posture, and the backrest is more comfortable.
Further, a plane parallel to the ground where the lowest point of the foot placing connecting block 31 is located in the sitting posture is a reference plane, in this embodiment, the height of the highest point of the foot placing connecting block 31 from the reference plane in the lying posture is 520mm, the height of the highest point of the foot placing connecting block 31 from the reference plane in the sitting posture is 320mm, the ratio of the two is about 1.6, in other embodiments, the ratio range may be other values not less than 1.2, and preferably, the ratio is 1.5, 1.6, 1.8. So set up and guaranteed when extending the appearance, put foot 3 and raised suitable distance for user's shank keeps good position of sitting in comfortable while, and when switching into the appearance of lying, put foot 3 and produce obvious raising, further lifting user's shank, let the user get into comfortable appearance state of lying as early as possible.
Further, the ratio of the distance between the highest point of the backrest connecting block 11 and the reference plane in the sitting posture and the lying posture is preferably not less than 1.5, 1.6 in this embodiment, and 1.5, 1.8 and 2.0 in other embodiments. Due to the arrangement, when the lying posture is changed from the sitting posture, the back has an obvious height difference, the upper half body of a person sinks to an obvious extent, and the user can enter the comfortable state of the lying posture by matching with the obvious lifting of the feet.
Further, the backrest connecting assembly 10 further includes a backrest limiting block 12 and a backrest limiting rod 13, the backrest connecting block 11 is hinged to the backrest limiting block 12, a limiting surface matched with the backrest limiting rod 13 is arranged on the backrest limiting block 12, and in a second adjusting stage, the downward moving distance of the connecting point of the backrest connecting block 11 and the backrest limiting block 12 is 30mm-100mm, 50mm in this embodiment, and 30mm, 60mm and 80mm in other preferred embodiments. The lowest point of the backrest 1 when the posture changes depends on the positions of the limiting rod 13 and the limiting block 12. The limiting rod 13 is a descending limiting rod, and descends along with the backrest synchronously during adjustment, so that the descending space of the backrest 1 is larger, and the backrest is easier to form a roughly horizontal state with the foot placing part 3.
Further, the rising distance of the foot placing connection block in the second adjustment stage is 100mm to 250mm according to the actual size of the seating unit.
Further, as shown in fig. 7, in the present embodiment, the intermediate transmission assembly 20 further includes a rotary driving plate 22 and three connecting rods, and in other embodiments, more than three connecting rods may be provided. Wherein, the three connecting rods from the backrest connecting component 10 to the foot placing connecting component 30 are respectively a connecting rod I23, a connecting rod II 24 and a connecting rod III 25. Two ends of the three connecting rods are respectively connected with the seat frame 21 and the rotary driving plate 22, connecting points between the first connecting rod 23, the second connecting rod 24, the third connecting rod 25 and the rotary driving plate 22 are sequentially set as a point A, a point B and a point C, the force arm between the point A and the point B is L1, the force arm between the point B and the point C is L2, the proportion between L1 and L2 is not less than 0.15, the proportion in the embodiment is 0.2, and other preferred embodiments are 0.15, 0.25 and 0.3. Through setting the connecting point of the connecting rod, the rotating angle of the seat frame can meet corresponding requirements under the proportion, and the seat frame can smoothly drive the backrest to sink and the feet to rise.
Further, the first and second adjustment phases are driven by the same drive source. Wherein, the driving source is connected with the backrest connecting component 10, and the output end of the driving source is connected with the foot-placing connecting component 30. The driving source is a linear motor, the linear motor is provided with an output shaft, and the output shaft is connected with the foot placing part connecting assembly 30. In the moving process, the output shaft of the linear motor pushes the foot placing connecting assembly 30, the foot placing connecting assembly 30 is hinged with the middle transmission assembly, so that the foot placing connecting assembly rotates relative to the middle transmission assembly, after the foot placing connecting assembly rotates to a certain fixed position, the foot placing connecting assembly 30 transmits a reaction force to the linear motor, and under the driving of the reaction force, the foot placing connecting assembly 30 and the backrest connecting assembly synchronously move and are finally adjusted to be in a lying posture state.
Example 2:
the rest of the setup of this embodiment is the same as embodiment 1, with the difference that the first and second adjustment phases are driven by the same drive source. Wherein, the driving source is connected with the backrest connecting component 10, and the output end of the driving source is connected with the foot-placing connecting component 30. The driving source is a cylinder, and the cylinder includes a piston rod, and the piston rod is connected with the foot placing connecting assembly 30. In the moving process, the piston rod of the cylinder pushes the foot placing connecting assembly 30, the foot placing connecting assembly 30 is hinged with the middle transmission assembly, so that the foot placing connecting assembly rotates relative to the middle transmission assembly, after the foot placing connecting assembly rotates to a certain fixed position, the foot placing connecting assembly 30 transmits a reaction force to the cylinder, and under the driving of the reaction force, the foot placing connecting assembly 30 and the backrest connecting assembly synchronously move and are finally adjusted to be in a lying posture state. Compared with a linear motor, the air cylinder is adjusted more rapidly and directly, rapid change of the seat posture can be achieved, the linear motor is more stable, and the air cylinder and the linear motor have the advantages.
Example 3:
this embodiment improves on embodiment 1's basis, still includes back stopper 12 and back gag lever post 13 including back coupling assembling 10, and back connecting block 11 is articulated with back stopper 12, is equipped with on the back stopper 12 with back gag lever post 13 assorted spacing face, is equipped with resilient means between back stopper 12 and the back gag lever post 13, and resilient means is used for as the bolster, and is specific, and resilient means is the spring. In other embodiments, the elastic means may also be a sponge, or the like. The elastic buffer device is beneficial to reducing the impact of the head of the sofa in the descending process, and the sofa does not have too much rattle when the limiting block and the backrest limiting rod collide in the final state.
Example 4:
this embodiment also has buffer, nevertheless has the difference with embodiment 3, and this embodiment sets up on the basis of 1, still includes back stopper 12 and back gag lever post 13 including back coupling assembling 10, and back connecting block 11 is articulated with back stopper 12, the back connecting block with back stopper 12 is equipped with moment spring in articulated department. The moment spring is preferably a leaf spring. The buffer device is arranged at the hinged position of the two parts, so that the impact of the seat on the human body in the adjusting process and the noise generated by collision in the limiting process can be reduced. In other possible embodiments, a damping device may be arranged between other key rotating parts.
In addition, the application scenarios of the seating unit provided in all the embodiments include, but are not limited to, furniture sofas, lounge chairs, theater or hospital seats, vehicle seats, and the like.
Although the present invention has been described in connection with the preferred embodiments, it is not intended to limit the invention to the embodiments described herein, but rather, to include various changes and modifications without departing from the scope of the invention.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (16)
1. An adjustment device for a seating unit, characterized in that the seating unit can be adjusted by the adjustment device to a sitting position, an extended position and a lying position, the adjustment of the seating unit from the sitting position to the extended position being a first adjustment phase, the adjustment of the seating unit from the extended position to the lying position being a second adjustment phase;
the seat unit comprises a backrest, a seat part and a foot placing part; the adjusting device comprises a backrest connecting assembly, a middle transmission assembly and a foot placing part connecting assembly which are sequentially connected; the backrest connecting assembly comprises a backrest connecting block, and the backrest connecting block is used for connecting and adjusting the backrest; the intermediate transmission assembly comprises a seat frame, and the seat frame is used for connecting and adjusting the seat; the foot placing part connecting assembly comprises a foot placing connecting block which is used for connecting the foot placing part;
the angle variation of the backrest connecting block in the second adjusting stage is not less than 40 degrees, and the angle variation of the seat frame in the second adjusting stage is not less than 5 degrees.
2. An adjustment device for a seating unit according to claim 1, wherein the adjustment device adjusts the seating unit in the lying position such that the height difference between the highest point of the footrests and the highest point of the backrest is not more than 100 mm.
3. An adjusting device for a seat unit according to claim 1 or 2, wherein a plane parallel to the ground where the lowest point of the foot placing connecting block is located in the sitting posture is a reference plane, and the ratio of the height of the highest point of the foot placing connecting block from the reference plane in the lying posture to the height of the highest point of the foot placing connecting block from the reference plane in the sitting posture is not less than 1.2.
4. An adjustment device for a seating unit according to claim 3, wherein the ratio of the distance between the highest point of the backrest connection block and the reference plane in the sitting position and the lying position is not less than 1.5.
5. The adjusting device for a seating unit of claim 4, wherein the backrest connecting assembly further comprises a backrest limiting block and a backrest limiting rod, the backrest connecting block is hinged to the backrest limiting block, a limiting surface matched with the backrest limiting rod is arranged on the backrest limiting block, and the downward moving distance of the connecting point of the backrest connecting block and the backrest limiting block is 30-100 mm in the second adjusting stage.
6. An adjustment device for a seating unit according to claim 5, wherein a resilient cushioning means is provided between the back stop and the back stop rod.
7. An adjustment device for a seating unit according to claim 6 wherein the resilient cushioning means is a foam pad and/or a spring.
8. An adjustment device for a seating unit according to claim 3, wherein the rising distance of the foothold connection block in the second adjustment stage is 100mm to 250 mm.
9. An adjustment device for a seating unit according to claim 1, wherein said intermediate transmission assembly further comprises a rotary drive plate and at least three links, at least three of said links being connected at each end to said seat frame and said rotary drive plate, respectively.
10. The adjustment device of claim 9, wherein the number of said connecting rods is three, the connecting points of said three connecting rods and said rotary driving connecting plate are point a, point B and point C in sequence from said backrest connecting block to said footrest connecting block, the magnitude of the moment arm between said point a and said point B is L1, the magnitude of the moment arm between said point B and said point C is L2, and the ratio between L1 and L2 is not less than 0.15.
11. An adjustment device for a seating unit according to claim 1, characterised in that the first and second adjustment phases are driven by the same drive source.
12. An adjustment device for a seating unit according to claim 11, wherein the drive source is connected to the backrest connection assembly or the intermediate transmission assembly, and the output of the drive source is connected to the footrest connection assembly.
13. An adjustment device for a seat unit according to claim 11 or 12, wherein the drive source is a linear motor having an output shaft connected to the footrest attachment assembly.
14. An adjustment device for a seating unit according to claim 11 or 12, wherein the drive source is a cylinder having a piston rod connected to the footrest connection assembly.
15. A seating unit comprising a seating unit adjustment device as claimed in any one of claims 1 to 14.
16. A seating unit according to claim 15, wherein the seating unit is a home sofa or a leisure chair or a cinema seat or a hospital seat or a vehicle seat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173170X | 2018-07-24 | ||
| CN201821173170 | 2018-07-24 |
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| CN210471586U true CN210471586U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910262216.8A Pending CN110051153A (en) | 2018-07-24 | 2019-04-02 | A kind of regulating device for seating unit |
| CN201920438648.5U Ceased CN210471586U (en) | 2018-07-24 | 2019-04-02 | An adjustment device for a seat unit and a seat unit |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910262216.8A Pending CN110051153A (en) | 2018-07-24 | 2019-04-02 | A kind of regulating device for seating unit |
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| CN (2) | CN110051153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051153A (en) * | 2018-07-24 | 2019-07-26 | 锐迈机械科技（吴江）有限公司 | A kind of regulating device for seating unit |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111671267A (en) * | 2020-06-05 | 2020-09-18 | 锐迈机械科技（吴江）有限公司 | Mechanical stretching sofa iron frame |
| CN113892772A (en) * | 2021-10-27 | 2022-01-07 | 锐迈机械科技（吴江）有限公司 | Mechanical stretching device for a movable seat unit and seat unit |
| WO2023071831A1 (en) * | 2021-10-27 | 2023-05-04 | 锐迈科技股份有限公司 | Mechanical stretching device for movable seat unit, seat bracket, and seat unit |
| CN115177110A (en) * | 2022-08-09 | 2022-10-14 | 锐迈科技股份有限公司 | Adjusting device for seat unit and seat unit |
| CN115500641A (en) * | 2022-09-20 | 2022-12-23 | 锐迈科技股份有限公司 | Sofa support and seat unit |
| WO2025000921A1 (en) * | 2023-06-30 | 2025-01-02 | 锐迈科技股份有限公司 | Mechanical extension device for movable seat and movable seat unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB500069A (en) * | 1937-12-14 | 1939-02-02 | Edward George Wells | Improvements in couches, settees or like articles of furniture |
| JP4731422B2 (en) * | 2006-08-01 | 2011-07-27 | 三洋電機株式会社 | Chair type massage machine |
| US8616626B2 (en) * | 2011-03-14 | 2013-12-31 | L & P Property Management Company | Linkage mechanism for a high-leg seating unit |
| CN202146108U (en) * | 2011-07-06 | 2012-02-22 | 敏华家具制造(惠州)有限公司 | Mechanical stretching device for movable sofa |
| CN202892335U (en) * | 2012-11-12 | 2013-04-24 | 常州市锐新医疗器械有限公司 | Horizontal multi-link extension mechanism |
| CN203121646U (en) * | 2013-03-18 | 2013-08-14 | 浙江嘉宜实业有限公司 | Linkage deck chair |
| CN204889307U (en) * | 2015-06-24 | 2015-12-23 | 黄小卫 | Many selections of shank activity sofa mechanical expansion means |
| CN110051153A (en) * | 2018-07-24 | 2019-07-26 | 锐迈机械科技（吴江）有限公司 | A kind of regulating device for seating unit |
-
2019
- 2019-04-02 CN CN201910262216.8A patent/CN110051153A/en active Pending
- 2019-04-02 CN CN201920438648.5U patent/CN210471586U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051153A (en) * | 2018-07-24 | 2019-07-26 | 锐迈机械科技（吴江）有限公司 | A kind of regulating device for seating unit |
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|---|---|
| CN110051153A (en) | 2019-07-26 |
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