CN112493739B - Main structure of a sitting and lying seat - Google Patents
Main structure of a sitting and lying seat Download PDFInfo
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- CN112493739B CN112493739B CN202011645667.9A CN202011645667A CN112493739B CN 112493739 B CN112493739 B CN 112493739B CN 202011645667 A CN202011645667 A CN 202011645667A CN 112493739 B CN112493739 B CN 112493739B
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- 230000008602 contraction Effects 0.000 abstract 1
- 230000036630 mental development Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 10
- 238000011161 development Methods 0.000 description 7
- 230000009323 psychological health Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004630 mental health Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
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- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000012827 research and development 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
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
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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
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
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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
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
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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
- A47C7/50—Supports for the feet or the legs
- A47C7/506—Supports for the feet or the legs of adjustable type
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to a main body structure of a sitting and lying seat, which consists of a positioning locking part, a connecting frame part and a back part. The seat is stable and stepless, the seat is cut by the locking part, the height of the seat is changed by the position adjustment of the upper straight part and the lower straight part, the front and back extension of the seat is realized by the movable connection of the push-pull part, the seat and the upper part, which are respectively connected with the lower part of the frame part and the seat part in a rotating way, the back part extension is realized by the movable connection of the back part connecting plate and the chair lying support movable body, and the foot rest assembly arranged at the rear end of the frame part is realized, so that students in classrooms in serial arrangement can put feet on the foot rest assembly. The invention has the functions of contraction during sitting and expansion during lying, is suitable for students sitting and reclining chairs in classrooms where the reclamation is in virgin places, realizes popular consumption of the office chair sitting and reclining chairs, creates conditions for the groups of middle and primary school students, teachers and the like in a good afternoon nap mode, and is particularly beneficial to physical and mental development and study of the middle and primary school students.
Description
Technical Field
The invention relates to the technical field of educational equipment and furniture, in particular to a main body structure of a sitting and lying seat.
Background
The seating device referred to herein is a generic term for chairs and sofas such as student chairs, office chairs and row chairs.
1. The good afternoon nap mode is beneficial to the development, physical and mental health and study of students in middle and primary schools, and is beneficial to the physical and mental health and work of office staff such as teachers. The current afternoon nap situation of the primary and secondary schools which are implemented or being carried out is various, most of the primary and secondary schools adopt improper sleeping postures which are prone to be on a desk, some students take the sleeping tool to lie on the ground for afternoon nap, and some schools are provided with afternoon nap classrooms. The technical scheme of 'the main body structure of the sitting and lying dual-purpose student chair and the sitting and lying dual-purpose office chair' with the application number 202020169118.8 is that a crossed main body mechanism with obvious characteristics is adopted, a chair back and seat frame transfer or linkage mode is adopted, the sitting and lying student chair for a narrow occasion in a classroom is tried to be developed, the virginal is reclaimed, and a proper seat is used for creating conditions for a good afternoon nap mode of a primary and a secondary school student. The technical scheme has the remarkable advantages that the seat part is telescopic, is contracted when sitting and stretched when lying, can be suitable for students with different heights, and has the advantages of large adjustable range of the seat height, and the like when sitting and lying. These advantages make it suitable for narrow classroom, great height difference of students, etc. In the process of consulting and trying the student sitting and reclining chair, the teaching tool of ① has the advantages that the technical scheme is large in span, a head array is required to be formed, the market of the sitting and reclining chair for classrooms in the virgins is opened, difficulty is brought to the opening, ② is striving to find a plurality of product research and development schemes suitable for the head array, the virgins are reclaimed in a multi-level mode from a plurality of directions, the flowers of the student sitting and reclining chair are kept, and ③ teaching tools including the student sitting and reclining chair are required to be approved by education departments, schools, parents and students. The sales characteristics suggest that at present, the better design thought of the sitting and reclining chair for students is that the extendably developed is carried out on the basis of the existing chair for students which is accepted by four parties, and the chair for students is simpler in structure, more convenient and quick to operate, more practical in price, easier to popularize and safer, namely easier to accept by markets, and provides good afternoon nap tools and afternoon nap modes for middle and primary school students while better adapting to the characteristics of narrow classrooms, large height difference of students and the like. Under the guidance of the development thought, the technical scheme of a seat back and seat linkage mechanism with the application number 202021790729.0 is developed and declared on the basis of the existing student chair with the height-adjustable seat. This solution meets all the above requirements. In order to further expand and improve the quality and quantity of products of the student sitting and reclining chair, the lying position can not be adjusted steplessly by changing the scheme, and the chair seat can only stretch and retract, and only one lying position and foot can only rest on the ground. In order to prepare for the sitting and lying of students and the sitting and lying of flowers and adapt to schools and schools of different levels, a new technical scheme for carrying out extension development is provided.
2. Telescopic sitting and lying dual-purpose office and study chair with patent number ZL201721517914.0, telescopic sitting and lying dual-purpose chair with patent number ZL201820336205.0 and sitting and lying dual-purpose chair with application number 201910637025. X
The three technical schemes of the sitting and lying switching mechanism of the lying and sitting tool are also efforts to try to provide a good afternoon nap mode for students in middle and primary schools, teachers and other office staff. The main body mechanisms of the three technical schemes are all parallelogram mechanisms, the chair back and the seat frame are linked, and only one operation action is needed for sitting, lying and cutting each other, so that the chair is convenient and fast. The three technical schemes are used for realizing popular consumption and general public, and have a lifting space-also adopting the extensive development thought of the student sitting and reclining chair, improving on the basis of the office chair accepted by the market, leading the structure to be simpler, the price to be more practical, the popularization to be easier and the popular consumption to be realized, promoting the hundred flowers of the office sitting and reclining chair/noon break chair to be put together, providing good noon nap modes and tools for office staff such as teachers and the like, and serving the physical and mental health and work of the office staff such as teachers and the like. Meanwhile, the product can be conveniently developed to the direction of home-sofa.
Disclosure of Invention
The main object of the invention is to provide a main structure of sitting and lying furniture, which is developed in an extending way on the basis of a student chair or office chair accepted by the market, changes the defect that the lying position of the student sitting and lying chair cannot be adjusted steplessly, only the chair seat stretches out and draws back and only one lying position and foot can be put on the ground, further expands and improves the quality and quantity of sitting furniture products such as the student sitting and lying chair, and the like, so that the structure is simpler, the operation is more convenient, the price is more practical, the popularization is easier, the popular consumption is realized, the characteristics of narrow occasions such as classrooms and the like, the height difference of students are better adapted, the invention tries to get a head array for the places of multi-level reclamation, and provides for the flowers of the student sitting and lying chair to be put on and the schools and schools with different levels are adapted. Therefore, the novel Siesta provides a good afternoon nap mode and seating for office workers such as students and teachers, is beneficial to development, physical and psychological health and study of the students in middle and primary schools, is beneficial to physical and psychological health and work of the office workers such as teachers, is better suitable for narrow occasions or improves the utilization rate of office places, and is convenient for the product to develop towards the house-sofa direction.
In order to achieve the main purpose, the invention is realized by the following technical scheme. The utility model provides a main structure of sitting and lying thing to sit on mainly comprises frame part, back of the body part and location locking part, the frame part mainly constitute by frame subassembly and lower frame subassembly, the frame subassembly mainly constitute by seat spare, upside piece, go up straight piece and last horizontal piece, the upside piece be left side upside piece and right upside piece, the one end of going up horizontal piece with the left side upside piece link firmly, the upper horizontal piece other end with the right side upside piece link firmly, left side upside piece, the right side upside piece with the upper horizontal piece of going up in the stated constitute the small subassembly of seat frame, the seat spare connect be in the small subassembly of seat frame on, the upper straight piece of going up in the stated be left side straight piece and right straight piece, the suitable position of left side upside piece and the upper straight piece of left side piece link firmly, the right side piece of right side upside piece and right side piece, the lower side piece of the straight piece of the right side and the straight piece of the right side piece, the right side piece of the straight piece of the lower side piece and the straight piece of the right side piece, the right side piece of the straight piece of the right side piece and the straight piece of the lower piece, the right side piece of the straight piece of the right side piece and the straight piece of the right side piece, the right side piece of the straight piece of the right side piece and the straight piece of the straight piece, the right side piece of the right side piece and the straight piece of the right side piece. The back piece mainly comprises back side piece, back cross piece and back support piece, back side piece be left back side piece and right back side piece, back cross piece's one end with left back side piece link firmly, back cross piece other end with right back side piece link firmly, left back side piece right back side piece with back cross piece constitute back frame subassembly, back support piece link firmly back frame subassembly on. The positioning locking component mainly comprises a fixed component and a movable component, the fixed component is movably connected with the movable component, the fixed component is fixedly connected with one of the upper frame component and the back frame small component, and the movable component is fixedly connected with the other of the upper frame component and the back frame small component.
The chair is characterized in that the positioning locking component is a chair lying support component, the chair lying support component mainly comprises a chair lying support fixing component, a chair lying support moving component and a chair lying support operating component, the chair lying support fixing component is rotationally connected with the chair lying support moving component, the chair lying support operating component is arranged on the chair lying support fixing component, the chair lying support fixing component is fixedly connected with the upper frame component, and the chair lying support moving component is fixedly connected with the back frame small component.
The positioning locking component is a controllable gas spring component, the controllable gas spring component mainly comprises a cylinder body component, a gas rod component and a gas spring operating piece, the cylinder body component and the gas rod component are connected in a moving pair, the gas spring operating piece is arranged on the gas rod component, the cylinder body component is rotationally connected to the lower part of the back frame small component, the gas rod component is rotationally connected to the upper frame component, the left back side component and the rear end of the left upper side component are rotationally connected, and the right back side component and the rear end of the right upper side component are rotationally connected.
The positioning locking component is a Japanese buckle component, the Japanese buckle component mainly comprises a buckle fixing component and a buckle movable component, the buckle fixing component is rotationally connected with the buckle movable component, the buckle fixing component is fixedly connected to one component of the upper frame component and the back frame small component, and the buckle movable component is fixedly connected to the other component of the upper frame component and the back frame small component.
The adjustable angle locking component is a chair adjustable angle component, the chair adjustable angle component mainly comprises a main adjustable angle component, an auxiliary adjustable angle component and an angle adjusting operation piece, the main adjustable angle component mainly comprises a fixed main adjustable angle component and a movable main adjustable angle component, the fixed main adjustable angle component is rotationally connected with the movable main adjustable angle component, the fixed main adjustable angle component is fixedly connected with an upper side piece, the movable main adjustable angle component is fixedly connected with a back side piece, the angle adjusting operation piece is arranged on the fixed main adjustable angle component, the auxiliary adjustable angle component mainly comprises a fixed auxiliary adjustable angle component and a movable auxiliary adjustable angle component, the fixed auxiliary adjustable angle component is rotationally connected with the movable auxiliary adjustable angle component, the fixed auxiliary adjustable angle component is fixedly connected with another upper side piece, and the movable auxiliary adjustable angle component is fixedly connected with another back side piece.
The seat piece is connected with the seat frame small assembly, two sides of the seat piece are respectively connected with the left upper side piece and the right upper side piece to form a moving pair, one end of the push-pull piece is rotationally connected with the lower part of the back frame small assembly, and the other end of the push-pull piece is rotationally connected with the seat piece.
The seat part is fixedly connected with the seat frame small assembly.
The upper straight piece and the lower straight piece are connected through a movable pair.
The foot rest component is arranged on the frame component.
The foot rest assembly is a foot rest assembly I arranged on the lower support assembly of the foot rest part, the foot rest assembly I mainly comprises a foot rest, a left front small support, a right front small support, a left rear small support, a right rear small support and a positioning piece, the two sides of the foot rest are respectively connected with the left front small support and the upper end of the right front small support in a rotating mode, the two sides of the foot rest are respectively connected with the left rear small support and the upper end of the right rear small support in a rotating mode, the lower ends of the left front small support and the left rear small support are respectively connected with the left lower side piece in a rotating mode, the lower ends of the right front small support and the right rear small support are respectively connected with the right lower side piece in a rotating mode, and the foot rest, the left front small support, the right front small support, the left rear small support, the right rear small support and the right rear small support are respectively connected with the right lower side piece in a rotating mode, and the left front small support and the right rear small support are arranged on the left side of the foot rest, the left front small support and the right rear small support are arranged on the left rear small support and the right rear small support, and the left rear small support are arranged on the left side of the left rear small support.
Through the structure, the main structure of the sitting and lying seat has the following two main conditions that the seat part is fixedly connected with the upper side part, the push-pull part is not needed, the back part can be stretched or adjusted, the seat part is connected with the upper side part moving pair, the push-pull part is arranged, and the seat part can be stretched or adjusted. The operation and action of the two cases will be described below by taking the positioning locking component as an example of the chair seat component.
1. The seat part is fixedly connected with the upper side part, the push-pull part is not needed, and the back part can be stretched or adjusted.
The required seat height is set by adjusting the connection position of the upper straight piece and the lower straight piece connected by the moving pair.
1) Switching from sitting to lying. The person sits on the seat and operates the chair lying support operating member, and the chair lying support member loses the locking force, but still has a force for maintaining the sitting state. This force to maintain the sitting position increases with increasing back tilt angle of the back member. The person leans back towards the back part, which rotates backwards. In any position where the back part is reclined, including the back part being reclined to the tilt angle maximum position, the chair recliner operating member is operated again, the chair recliner member resumes the locking force, and the back part is locked in this reclined position. This procedure illustrates that the seating position of the article of seating is steplessly adjusted over the range of back seating to back maximum lying angle. The force for maintaining the sitting state of the chair lying support component is increased along with the increase of the angle of the back component, so that the sitting tool can realize stable stepless position adjustment.
2) Switching from lying to sitting.
The person leaves the seat and operates the chair lying support operating member, and the back member rotates forwards under the pushing of the force for maintaining the sitting state until the seat is restored to the sitting position.
3) Telescoping/positioning of the back member.
The T-shaped plate chair lying support component is selected, and other spare parts are not required to be added, the operation is performed by loosening the fastening piece arranged on the chair lying support movable component, pulling the back component, enabling the back component to move up and down along with the T-shaped plate, and enabling the fastening piece to be fastened at a required position, and enabling the back component to be positioned at a required position. The position of the back part is adjusted up and down, so that the length of the lying position is changed, and the expansion/positioning of the back part is realized.
4) Use of a foot rest assembly.
When students use free areas such as walkways in classrooms for afternoon nap, the sitting and lying chairs of the students are easy to be arranged in series. The parallelogram mechanism foot rest assembly arranged at the rear end of the lower frame assembly is turned back to the rear upper position, the feet of a rear student can be placed on the foot rest assembly of the front student sitting and reclining chair, and the foot rest assembly is returned to the front lower position when sitting or not in the afternoon nap season, and student articles can be placed on the foot rest assembly.
2. The seat part is connected with the upper side part moving pair and is provided with a push-pull part, and the seat part can be stretched or adjusted.
The required seat height is set by adjusting the connection position of the upper straight piece and the lower straight piece connected by the moving pair.
1) Switching from sitting to lying.
The person sits on the seat and operates the chair lying support operating member, and the chair lying support member loses the locking force, but still has a force for maintaining the sitting state. This force to maintain the sitting position increases with increasing back tilt angle of the back member. The person leans back towards the back part, and the push-pull part arranged below the back part pushes the seat part to move forwards when the back part rotates backwards. And at any position of the backward tilting of the back part, the chair lying support operating part is operated again, the chair lying support part restores the locking force, the back part is locked at the backward tilting position, and the seat part is locked at the position corresponding to the back part. The seat member is pushed to the foremost position when the back member is reclined to the maximum tilt angle. That is, the lying position of the seat is steplessly adjusted in the angular range of the back member sitting position to the maximum lying position of the back member. Mainly because the force for maintaining the sitting state of the chair lying support part is increased along with the increase of the angle of the back part, the stepless position adjustment of the seat is stable.
2) Switching from lying to sitting.
The person leaves the seat, the operation piece of the lying support of the chair is operated, the back piece rotates forwards under the pushing of the force for maintaining the sitting state, and the seat piece is pulled backwards by the push-pull piece until the back piece and the seat piece are restored to the sitting state of the seat.
3) Use of a foot rest assembly.
When students use free areas such as walkways in classrooms for afternoon nap, the sitting and lying chairs of the students are easy to be arranged in series. The foot rest assembly arranged at the rear end of the lower frame assembly is turned to the rear upper position, the foot rest is horizontally moved to the high position, the feet of a student at the back can be placed on the foot rest assembly of the sitting and reclining chair of the student at the front row, and when the student is sitting or not in the afternoon nap season, the foot rest assembly is returned to the front lower position, and the foot rest is horizontally moved to the lowest position, so that the student can be placed on the foot rest assembly.
For a student sitting and reclining chair, the chair back height cannot be high due to the requirement of a lesson environment. The seat or back part is telescopic/adjustable to meet the demands of different lying positions and sitting positions of students, the second one is that the students can sit and lie in the small space of a classroom due to the fact that the feet are placed on the ground, and the third one is that when the foot rest is arranged at the rear end of the lower rack assembly, the foot rest is pulled up, and when the lying positions of the students are arranged in a front-back serial mode, the feet of the rear students can rest on the foot rest of the front student chair. The foot rest mode that the student's feet are put on the foot rest improves the comfort level of the student's position of lying when adapting to the narrow space in classroom. Therefore, the student sitting and reclining chair can better meet the characteristics of narrow classroom occasions, large height difference of students and the like. Similar office lounge chairs and couch types can also have these advantages.
In summary, the invention is developed in an extending way on the basis of the student chairs or office chairs accepted by the market, the lying position of the student sitting and reclining chair can not be adjusted steplessly, only the chair seat is telescopic, only one lying position and only one foot can be placed on the ground, the quality and quantity of seating products such as the student sitting and reclining chair are further expanded and improved, the structure is simpler, the operation is more convenient, the price is more practical, the popularization is easier, the mass consumption is realized, the characteristics of narrow occasions such as classrooms and the like, the height difference of students is large, the invention is suitable for the virgins of multi-level reclamation, and the invention is intended to prepare for the schools with different levels for placing flowers of the student sitting and reclining chair. Therefore, the novel Siesta provides a good afternoon nap mode and seating for office workers such as students and teachers, is beneficial to development, physical and psychological health and study of the students in middle and primary schools, is beneficial to physical and psychological health and work of the office workers such as teachers, is better suitable for narrow occasions or improves the utilization rate of office places, and is convenient for the product to develop towards the house-sofa direction.
Drawings
The two best embodiments of the invention are described below with reference to the accompanying drawings, 1) the positioning and locking component is a chair lying support component with a T-shaped plate, the seat component is fixedly connected with the upper side component, the push-pull component is not provided, the position of the back component is adjustable, the rear end of the lower support component is provided with a foot rest component, 2) the positioning and locking component is a controllable gas spring component, and the seat component is connected with the upper side component moving pair and is provided with the push-pull component.
FIG. 1 is a schematic left-hand view of a first preferred embodiment;
FIG. 2 is a schematic top view of the A-direction of FIG. 1;
FIG. 3 is a schematic left-hand view of a second preferred embodiment;
fig. 4 is a schematic view of fig. 3 from the top.
Detailed Description
Two examples of the present invention are described in detail below with reference to the accompanying drawings.
See fig. 1 and 2. In the embodiment, the frame component 1 mainly comprises a frame component 1, a back component 2 and a positioning locking component 3, wherein the frame component 1 mainly comprises an upper frame component 1-1 and a lower frame component 2-1, the upper frame component 1-1 mainly comprises a seat component 1-1-1, an upper side component 2-1-1, an upper straight component 3-1-1 and an upper transverse component 4-1-1 (shown by a dotted line in fig. 1), the upper side component 2-1-1 is a left upper side component Z-2-1 and a right upper side component Y-2-1-1, one end of the upper transverse component 4-1-1 is fixedly connected with the left upper side component Z-2-1-1, the other end of the upper transverse component 4-1-1 is fixedly connected with the right upper side component Y-2-1-1, the left upper side component Z-2-1-1, The right upper side piece Y-2-1-1 and the upper transverse piece 4-1-1 form a seat frame small component Z-K, the seat piece 1-1-1 is fixedly connected to the seat frame small component Z-K, the upper straight piece 3-1-1 is a left upper straight piece Z-3-1-1 (shown by a broken line in fig. 2) and a right upper straight piece Y-3-1-1 (shown by a broken line in fig. 2), the upper ends of the left upper side piece Z-2-1-1 and the left upper straight piece Z-3-1-1 are fixedly connected, the upper ends of the right upper side piece Y-2-1-1 and the right upper straight piece Y-3-1-1 are fixedly connected, and the lower frame component 2-1 mainly comprises the lower side piece 1-2-1, The lower straight piece 2-2-1 and the lower cross piece 3-2-1 (shown by the broken line in figure 1), the lower piece 1-2-1 is a left lower piece Z-1-2-1 and a right lower piece Y-1-2-1, the lower straight piece 2-2-1 is a left lower straight piece Z-2-2-1 (shown by the broken line in figure 2) and a right lower straight piece Y-2-1 (shown by the broken line in figure 2), the lower ends of the left lower piece Z-1-2-1 and the left lower straight piece Z-2-2-1 are fixedly connected, the left lower piece Z-1-2-1 and the left lower straight piece Z-2-2-1 form a left lower small component Z-X-C, the lower ends of the right lower side piece Y-1-2-1 and the right lower straight piece Y-2-2-1 are fixedly connected, the right lower side piece Y-1-2-1 and the right lower straight piece Y-2-2-1 form a right lower side small component Y-X-C, one end of the lower transverse piece 3-2-1 is fixedly connected with the left lower side small component Z-X-C, the other end of the lower transverse piece 3-2-1 is fixedly connected with the right lower side small component Y-X-C, and the upper straight piece 3-1-1 is connected with the lower straight piece 2-2-1 in a multi-gear moving pair. The back component 2 mainly comprises a back side piece 1-2, a back transverse piece 2-2 (shown by a broken line in fig. 1) and a back rest piece 3-2, wherein the back side piece 1-2 comprises a left back side piece Z-1-2 and a right back side piece Y-1-2, one end of the back transverse piece 2-2 is fixedly connected with the left back side piece Z-1-2, the other end of the back transverse piece 2-2 is fixedly connected with the right back side piece Y-1-2, the left back side piece Z-1-2, the right back side piece Y-1-2 and the back transverse piece 2-2 form a back frame small assembly B-K, and the back rest piece 3-2 is fixedly connected on the back frame small assembly B-K. The positioning locking component 3 mainly comprises a fixed component 1-3 and a movable component 2-3, wherein the fixed component 1-3 is movably connected with the movable component 2-3, the fixed component 1-3 is fixedly connected with one of the upper frame component 1-1 and the back frame small component B-K, and the movable component 2-3 is fixedly connected with the other of the upper frame component 1-1 and the back frame small component B-K. the positioning locking part 3 is a chair lying support part T-3, the chair lying support part T-3 mainly comprises a chair lying support fixing component 1-T-3, a chair lying support moving component 2-T-3 and a chair lying support operating piece 3-T-3, and the chair lying support moving component 2-T-3 (shown by a broken line in figure 2) comprises a chair lying support moving body 1-2-T-3, The chair comprises a chair lying support moving assembly, a back frame small assembly B-K, a chair lying support operating piece, a chair lying support fixing assembly, a chair lying support moving assembly, a chair lying support small assembly B-K and a chair lying support small assembly B-K, wherein the chair lying support moving assembly is composed of a T-shaped connecting plate 2-2-T-3 and a fastening piece 3-2-T-3 (shown by a dotted line in fig. 2), the T-shaped connecting plate 2-2-T-3 is connected with a chair lying support moving body 1-2-T-3 in a moving pair mode, the fastening piece 3-2-T-3 is connected with the chair lying support moving body 1-2-T-3 in a rotating mode, the chair lying support fixing assembly 1-2-T-3 is connected with the chair lying support moving body 1-2-T-3 in a rotating mode, and the chair lying support operating piece 3-T-3 is arranged on the chair lying support fixing assembly 1-T-3, the chair lying support fixing assembly 1-T-3 is fixedly connected with the upper frame assembly 1-1, and the chair lying support moving assembly 2-T-3 is fixedly connected with the back frame small assembly B-K.
The foot rest assembly G-J is a foot rest assembly I P-G-J arranged on the lower frame assembly 2-1 of the frame component 1, the foot rest assembly I P-G-J mainly comprises a foot rest 1-P-G-J, a left front small support 2-P-G-J (shown by a broken line in figure 2), a right front small support 3-P-G-J (shown by a broken line in figure 2), a left rear small support 4-P-G-J, a right rear small support 5-P-G-J and a positioning piece 6-P-G-J, two sides in front of the foot rest 1-P-G-J are respectively connected with the upper ends of the left front small support 2-P-G-J and the right front small support 3-P-G-J in a rotating manner, the two sides of the rear of the footrest 1-P-G-J are respectively and rotatably connected with the upper ends of the left rear small supporting piece 4-P-G-J and the right rear small supporting piece 5-P-G-J, the lower ends of the left front small supporting piece 2-P-G-J and the left rear small supporting piece 4-P-G-J are respectively and rotatably connected with the left lower side piece Z-1-2-1, the lower ends of the right front small supporting piece 3-P-G-J and the right rear small supporting piece are respectively and rotatably connected with the right lower side piece Y-1-2-1, and the footrest 1-P-G-J, the left front small supporting piece 2-P-G-J, the right front small supporting piece 3-P-G-J, the left rear small supporting piece 4-P-G-J and the right rear small supporting piece 5-P-G-J form a parallelogram mechanism frame P-J, and the positioning piece 6-P-G-J is arranged on the parallelogram mechanism frame P-J.
The two-dot chain line of fig. 1 shows a state when the seat is in the lying position. For convenience of illustration, the seat member 1-1-1 and the backrest member 3-2 of fig. 2 are indicated by two-dot chain lines.
See fig. 3 and 4. The second example only describes differences from the first example. Two sides of the seat part 1-1-1 are respectively and slidably connected to the left upper side part Z-2-1-1 and the right upper side part Y-2-1-1, one end of a push-pull part T-L is rotatably connected to the lower part of the back frame small assembly B-K, and the other end of the push-pull part T-L is rotatably connected with the seat part 1-1-1. The rear ends of the left back side piece Z-1-2 and the left upper side piece Z-2-1-1 are connected in a rotating way, and the rear ends of the right back side piece Y-1-2 and the right upper side piece Y-2-1-1 are connected in a rotating way.
The positioning locking component 3 is a controllable gas spring component Q-3, the controllable gas spring component Q-3 mainly comprises a cylinder block component 1-Q-3, a gas rod component 2-Q-3 and a gas spring operating component 3-Q-3, the cylinder block component 1-Q-3 and the gas rod component 2-Q-3 are connected by a moving pair, the gas spring operating component 3-Q-3 is arranged on the gas rod component 2-Q-3, the cylinder block component 1-Q-3 is rotatably connected to the lower part of the back frame small component B-K, and the gas rod component 2-Q-3 is rotatably connected to the upper transverse component 4-1-1 of the upper frame component 1-1. The frame member 1 is devoid of a footrest assembly G-J. The two-dot chain line of fig. 3 shows a state when the seat is in the lying position.
With the above structure, the specific operations and actions of the first and second examples of the main body structure of the sitting and lying seat are as follows.
1. The specific operations and acts of example one.
The required height of the seat part 1-1-1 is set by adjusting the connection position of the upper straight part 3-1-1 and the lower straight part 2-2-1 connected by the moving pair.
1) Switching from sitting to lying.
The person sits on the seat and operates the chair lying support operating member 3-T-3, and the chair lying support member T-3 loses the locking force, but still has a force to maintain the sitting state. This force to maintain the sitting position increases with increasing back tilt angle of the back member 2. The person leans back towards the back part 2 and the back part 2 rotates backwards. In any position where the back member 2 is reclined, including the back member 2 being reclined to the tilt angle maximum position, the chair rest operation 3-T-3 is operated again, the chair rest member T-3 resumes the locking force, and the back member 2 is locked in this reclined position. This procedure illustrates that the seat is steplessly reclined in the range of the angle of seating of the back 2 to the maximum recline of the back 2. The force for maintaining the sitting state of the chair lying support part T-3 is increased along with the increase of the angle of the back part 2, so that the chair can realize stable stepless position adjustment.
2) Switching from lying to sitting.
The person leaves the seat and operates the chair rest operating member 3-T-3, and the back member 2 rotates forward under the pushing of the force maintaining the sitting state until the seat is restored to the sitting position.
3) The back member 2 is extended/retracted.
The chair lying support part T-3 with the T-shaped plate is selected, and other spare parts are not required to be added, the operation is performed by loosening the fastening piece 3-2-T-3 arranged on the chair lying support movable body 1-2-T-3, pulling the back part 2, enabling the back part 2 to move up and down along with the T-shaped connecting plate 2-2-T-3, and enabling the fastening piece 3-2-T-3 to be positioned at a required position and enabling the back part 2 to be positioned at a required position. The position of the back part 2 is adjusted up and down, so that the lying length is changed, and the expansion/positioning of the back part 2 is realized.
4) Use of a foot rest assembly G-J.
When students use free areas such as walkways in classrooms for afternoon nap, the sitting and lying chairs of the students are easy to be arranged in series. The parallelogram mechanism foot rest assembly G-J arranged at the rear end of the lower frame assembly 2-1 is turned back to the rear upper position, the foot rest plate 1-G-J is translated to the high position, the feet of a rear student can be placed on the foot rest assembly G-J of the front student sitting and reclining chair, the foot rest assembly G-J is returned to the front lower position when sitting or not in the afternoon nap season, and the foot rest plate 1-G-J is translated to the lowest position, so that student objects can be placed on the foot rest assembly G-J.
2. Specific operations and actions of instance two.
The required height of the seat part 1-1-1 is set by adjusting the connection position of the upper straight part 3-1-1 and the lower straight part 2-2-1 connected by the moving pair.
1) Switching from sitting to lying.
A person sits on the seat and operates the gas spring operating member 3-Q-3, and the controllable gas spring member Q-3 loses the locking force, but still has a force to maintain the sitting state. This force to maintain the sitting position increases with increasing back tilt angle of the back member 2. The person leans back towards the back part 2, and the push-pull member T-L provided under the back part 2 pushes the seat part 1-1-1 forward while the back part 2 rotates backward. In any position of the back member 2 reclined, the gas spring operating member 3-Q-3 is operated again, the controllable gas spring member Q-3 resumes the locking force, the back member 2 is locked in this reclined position, and the seat member 1-1-1 is locked in a position corresponding to the back member 2. When the back member 2 is reclined to a maximum inclination, the seat member 1-1-1 is pushed to the foremost position. That is, the lying position of the seat is steplessly adjusted in the angular range of the seating position of the back member 2 to the maximum lying position of the back member. In the process of switching from sitting to lying, the forward movement of the seat part 1-1-1 drives the gravity center of the human body to move forward, so that the moment of the gravity center of the human body to the back part is reduced, and the stepless position adjustment of the seat can be stable under the condition that the force of the controllable gas spring part Q-3 for maintaining the sitting state is unchanged.
2) Switching from lying to sitting.
The person leaves the seat and operates the gas spring operating member 3-Q-3, the back member 2 rotates forward under the pushing of the force of the controllable gas spring member Q-3 to maintain the sitting state, and the seat member 1-1 is pulled back by the push-pull member T-L until the back member 2 and the seat member 1-1 recover to the seat state of the seat.
For a student sitting and reclining chair, the chair back height cannot be high due to the requirement of a lesson environment. The seat part 1-1-1 or the back part 2 can be used for meeting the demands of lying and sitting positions of different students, secondly, the students can sit and lie in a small space in a classroom due to the fact that feet rest on the ground, thirdly, when the parallelogram mechanism foot rest assembly G-J is arranged at the rear end of the lower frame assembly 2-1, the foot rest assembly G-J is pulled up, and when the lying positions of the students are arranged in a front-back serial mode, the feet of the students can rest on the foot rest assembly G-J of the chair of the students in front. The foot rest mode that the student's feet are put on the foot rest components G-J improves the comfort level of the student's lying position while adapting to the narrow space of the classroom. Therefore, the student sitting and reclining chair can better meet the characteristics of narrow classroom occasions, large height difference of students and the like. Similar office lounge chairs and couch-like seating and lying sofas can also have these advantages
In summary, the invention is developed in an extending way on the basis of the student chairs or office chairs accepted by the market, the lying position of the student sitting and reclining chair can not be adjusted steplessly, only the chair seat is telescopic, only one lying position and only one foot can be placed on the ground, the quality and quantity of seating products such as the student sitting and reclining chair are further expanded and improved, the structure is simpler, the operation is more convenient, the price is more practical, the popularization is easier, the mass consumption is realized, the characteristics of narrow occasions such as classrooms and the like, the height difference of students is large, the invention is suitable for the virgins of multi-level reclamation, and the invention is intended to prepare for the schools with different levels for placing flowers of the student sitting and reclining chair. Therefore, the novel Siesta provides a good afternoon nap mode and seating for office workers such as students and teachers, is beneficial to development, physical and psychological health and study of the students in middle and primary schools, is beneficial to physical and psychological health and work of the office workers such as teachers, is better suitable for narrow occasions or improves the utilization rate of office places, and is convenient for the product to develop towards the house-sofa direction.
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| DE9305071U1 (en) * | 1993-04-02 | 1993-06-09 | Fa. Otto Ritter Stahlbau, 6746 Hauenstein | Seating furniture, especially office chairs |
| CN202536740U (en) * | 2012-03-23 | 2012-11-21 | 郎洪明 | Dual-purpose chair for sitting and lying |
| CN208709036U (en) * | 2017-11-14 | 2019-04-09 | 江山市奇栖正机电科技有限公司 | Telescopic dual purposes of sitting and lying office, learning chair |
| CN210842264U (en) * | 2019-07-10 | 2020-06-26 | 江山市奇栖正机电科技有限公司 | Sitting and lying switching mechanism of sitting and lying seat |
| CN111109907B (en) * | 2020-01-18 | 2025-01-28 | 广州南体信息科技有限公司 | Main structure of a dual-purpose student chair and a dual-purpose office chair |
| CN111728406A (en) * | 2020-07-08 | 2020-10-02 | 江山市奇栖正机电科技有限公司 | The back of a reclining chair for students |
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