CN112263104B - Main body structure of sitting and lying dual-purpose chair - Google Patents
Main body structure of sitting and lying dual-purpose chairInfo
- Publication number
- CN112263104B CN112263104B CN202011384803.3A CN202011384803A CN112263104B CN 112263104 B CN112263104 B CN 112263104B CN 202011384803 A CN202011384803 A CN 202011384803A CN 112263104 B CN112263104 B CN 112263104B
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- Prior art keywords
- piece
- chair
- lying
- support
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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
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest 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
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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
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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
- A47C7/02—Seat parts
- A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
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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
- A47C7/36—Supports for the head or the back
- A47C7/40—Supports for the head or the back for the back
- A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
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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
- A47C7/54—Supports for the arms
- A47C7/541—Supports for the arms of adjustable type
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to a main body structure of a sitting and lying dual-purpose chair, which consists of a chair back part, a chair seat part and a locking part. The parallelogram main body mechanism is formed by fixedly connecting the left and right back side pieces of the chair back component and the left and right rear main support pieces of the chair seat component. The fixed component of the locking component (the chair lying support component or the chair angle adjusting component) is fixedly connected to the seat frame component, and the movable component is fixedly connected to the chair back frame component. The operation part is connected with the fixing component in a rotating way, the chair back is rotated backwards by manpower step by step, and when the chair back bears the moment of the human body which is increased step by step, the chain reaction is generated, the force of the locking part for maintaining the sitting state is increased step by step, the seat part translates backwards downwards, and the left auxiliary supporting part and the right auxiliary supporting part stretch backwards. Realizing stable and reliable switching from sitting to lying. The operating piece is operated reversely, so that stable and reliable switching of lying and sitting is realized. The invention matches the parallelogram mechanism with the improved locking device, ensures that the product has enough and safe service life and service performance, and improves the market prospect.
Description
Technical Field
The invention relates to the technical field of furniture, in particular to a main body structure of a sitting and lying dual-purpose chair.
Background
The problem of 'afternoon nap has various benefits' has reached a social consensus. The main body structure of a sitting and reclining chair with a movable locking device and a sitting and reclining sofa with a patent number ZL201920360712.2 and the two technical schemes of a sitting and reclining switching mechanism of a sitting and reclining tool with a patent number ZL201921115887.3 are both technical schemes for trying to solve the afternoon nap problem of groups such as office staff, students and the like in a popular way, create conditions for good afternoon nap habits, and are popular with the masses. The two technical schemes fully utilize the motion characteristics of the parallelogram main body mechanism, and realize the mutual cutting of sitting and lying by adopting the auxiliary supporting piece and the locking device. The two schemes only need one operation, achieve the linkage of the chair back, the chair seat, the auxiliary supporting piece and the armrests, finish the switching from the sitting position to the lying position or the switching from the lying position to the sitting position, are convenient to operate, simple in structure and easy to popularize, and have the advantages of being suitable for narrow occasions or reducing occupied areas. In the two technical schemes, the locking device is the most critical sitting and lying switching device except the main body mechanism, and the locking device has problems and can thoroughly influence the use function of the product. The two technical schemes of adopting the controllable gas spring as the locking device have the following defects that ① because of principle reasons, a high-pressure medium is stored in a cylinder of the controllable gas spring, and the necessary sealing structure can influence the service life, improve the maintenance cost and the difficulty and have the use risk. In general situations, such as those involving short maintenance or where the use is more concentrated and safer, those involving long maintenance or export products, etc., a series of problems may be drawn by using a controllable gas spring as a locking device, and ② operating the controllable gas spring during the process of switching from sitting to lying position, there is a constant force after losing the locking force. This constant force does not change with the amount of compression. When the back of the person leans against the back of the chair, the gravity center of the person moves backwards along with the backward rotation of the back of the chair, the moment on the back of the chair is gradually increased, and when the controllable air spring with constant force resists the moment which is gradually increased, the constant force elevation angle of the parallelogram is gradually reduced along with the moment which is gradually reduced because the parallelogram is gradually changed into a diamond shape with gradually reduced upper and lower parallel side distances, so that the capability of the constant force to resist the moment which is gradually increased is also reduced. The variation of the size causes the bad phenomenon of accelerating sinking of the chair back and the whole chair when the chair back reaches a certain back inclination angle. In order to overcome the bad phenomenon, a gradual reinforcement object is needed to be added to make up for the defect of the controllable air spring, ③ when the user lies down, the parallelogram is diamond-shaped, the elevation angle of the controllable air spring is minimum, and when the user switches from the lying down position to the initial position of the sitting down position, the bad phenomenon of difficult resetting can occur because of the insufficient thrust of the constant force. At this time, a certain reinforcement object is also needed to assist the controllable air spring to smoothly complete the switching from the lying position to the sitting position. Therefore, in the sitting and lying dual-purpose chair product fully utilizing the motion characteristics of the parallelogram mechanism, the performance of the chair product is better ensured, the market prospect is improved, and a more reliable, mature and safe locking device is required to be selected to be matched with the main body mechanism, so that the chair is a key matter for ensuring the quality and quantity of the product.
Disclosure of Invention
The invention aims to provide a main body structure of a sitting and lying dual-purpose chair. The technical scheme is to improve and promote two technical schemes of 'a main body structure of a sitting and reclining chair with a movable locking device and a sitting and reclining sofa with a patent number ZL 201920360712.2' and 'a sitting and reclining switching mechanism of a sitting and reclining chair with a patent number ZL 201921115887.3', and is to better match the characteristics of a parallelogram main body mechanism with a reliable, mature and safe locking device. The locking device is improved by selecting a more matched locking device on the basis of keeping the advantages of the two schemes, namely convenient operation, simple structure, easy popularization and suitability for narrow occasions or reduced occupied area. The improved locking device comprises ① and ②, wherein the service life of the product is ensured to be enough and safe, the product is ensured to have enough and safe use performance, the sitting and lying mutual cutting is stable and reliable, the resistance to the moment of the chair back caused by the gradually increased human body force is increased after the locking force is eliminated in the process of switching from the sitting position to the lying position, and the resetting force is reduced from large to small after the locking force is eliminated in the process of resetting from the lying position to the sitting position, so that the resetting is smooth and stable. Therefore, the application range of the product is enlarged, and the sales of the product at home and abroad is improved.
In order to achieve the main purpose, the invention is realized by the following technical scheme. It mainly comprises a chair back component, a chair seat component and a locking component. The chair back part mainly comprises a back side piece, a back transverse piece and a back rest piece. The back side pieces are a left back side piece and a right back side piece, one end of the back transverse piece is fixedly connected with the left back side piece, and the other end of the back transverse piece is fixedly connected with the right back side piece. The article that the back cross piece and the left back side piece and the right back side piece constitute is back of the chair frame subassembly, back of the chair piece link firmly on the back of the chair frame subassembly. The seat part mainly comprises a front main support component, a rear main support component, side components, a seat component, a seat transverse component and an auxiliary support component, wherein the front main support component mainly comprises a left front main support component, a right front main support component and a front transverse component, one end of the front transverse component is fixedly connected with the left front main support component, and the other end of the front transverse component is fixedly connected with the right front main support component. The rear main support component mainly comprises a left rear main support piece, the device comprises a right rear main support and a rear transverse member, wherein one end of the rear transverse member is fixedly connected with the left rear main support, the other end of the rear transverse member is fixedly connected with the right rear main support, the side members are an upper side member and a lower side member, the upper side member is a left upper side member and a right upper side member, the lower side member is a left lower side member and a right lower side member, one end of the seat transverse member is fixedly connected with the left upper side member, the other end of the seat transverse member is fixedly connected with the right upper side member, the article formed by the seat transverse member, the left upper side member and the right upper side member is a seat frame assembly, the seat member is fixedly connected with the seat frame assembly, the rear end of the left upper side member is rotatably connected with the upper end of the left rear main support, the front end of the left upper side member is rotatably connected with the upper end of the left main support member, the rear end of the right upper side member is rotatably connected with the right upper side of the right main support, the front end of the right upper side member is rotatably connected with the right upper side of the right main support, and the right upper side support is rotatably connected with the right upper side of the front end of the main support, and the right upper end is rotatably right upper and the right upper support is properly. The parallelogram frame is composed of the front main support component, the rear main support component, the seat frame component, the left lower side piece and the right lower side piece. The lower end of the left back side piece of the chair back component is fixedly connected with the upper end of the left rear main support piece, and the lower end of the right back side piece of the chair back component is fixedly connected with the upper end of the right rear main support piece of the chair seat component. the auxiliary supporting piece component mainly comprises an auxiliary supporting piece, an auxiliary transverse piece, the auxiliary support is a left auxiliary support and a right auxiliary support, the upper part of the auxiliary support is a horizontal part, the lower part of the auxiliary support is an inclined part, one end of the auxiliary transverse member is fixedly connected with the left auxiliary support, the other end of the auxiliary transverse member is fixedly connected with the right auxiliary support, the inclined part of the left auxiliary support is in rotary connection with the right main support at a proper position, the horizontal part of the left auxiliary support is provided with an elongated slot, the inclined part of the right auxiliary support is in rotary connection with the right main support at a proper position, the horizontal part of the right auxiliary support is provided with an elongated slot, the pressing and pulling member is a left pressing and pulling member and a right pressing and pulling member, the left pressing and pulling member is fixedly connected with the left upper side member, the left pressing and pulling member is in movable connection with the elongated slot of the left auxiliary support, and the right pressing and pulling member are fixedly connected with the right upper side of the right main support. The locking component mainly comprises a fixed component, a movable component and an operating piece, wherein the fixed component is rotationally connected with the movable component, and the operating piece is rotationally connected with the proper position of the fixed component. The fixed component of the locking component is fixedly connected to the proper position of the parallelogram frame, and the movable component of the locking component is fixedly connected to the proper position of the chair back component.
The locking component is a chair support component, the fixing component is a support fixing component, the movable component is a support movable component, the operating component is a support operating component, the support fixing component is rotationally connected with the support movable component, the support operating component is rotationally connected to a proper position of the support fixing component, the support fixing component is fixedly connected to a seat frame component of the chair seat component, and the support movable component is fixedly connected to a chair back frame component of the chair back component.
The locking component is a chair angle adjusting component, the chair angle adjusting component is composed of a main angle adjusting component and an auxiliary angle adjusting component, the main angle adjusting component mainly comprises a main angle adjusting fixed small component, a main angle adjusting movable small component and a main angle adjusting operation piece, the main angle adjusting fixed small component is rotationally connected with the main angle adjusting movable small component, the main angle adjusting operation piece is rotationally connected to a proper position of the main angle adjusting fixed small component, the main angle adjusting fixed small component is fixedly connected to the upper side piece, the main angle adjusting movable small component is fixedly connected to the back side piece, the auxiliary angle adjusting component mainly comprises an auxiliary angle adjusting fixed small component and an auxiliary angle adjusting movable small component, the auxiliary angle adjusting fixed small component is rotationally connected with the auxiliary angle adjusting movable small component, the auxiliary angle adjusting fixed small component is fixedly connected to the other upper side piece, and the auxiliary angle adjusting movable small component is fixedly connected to the other back side piece.
And a limiting part is arranged on the parallelogram frame.
The position of the limiting piece is adjustable.
The lower part of the parallelogram frame is provided with pulleys.
The lower part of the auxiliary supporting piece component is provided with a pulley.
The seat frame component is provided with an armrest component.
An armrest assembly is arranged between the chair back frame assembly and the seat frame assembly.
Through the structure, the specific operation and action of the main body structure of the sitting and lying dual-purpose chair are described by taking the locking part as a chair lying support part as an example.
1. The specific operation and action of the chair to switch from sitting to lying.
When the chair is in the sitting position, the chair lying support part is in a locking state. The chair can be switched from sitting to lying in two modes, 1) by depressing the reclining lever, the chair reclining member loses its locking force, but there is still a force to maintain the sitting position. The human back leans against the back component, the back component gradually tilts backwards, and as the back component increases in backward inclination, the following chain reaction is generated, ①, due to the motion characteristic of the parallelogram main body mechanism, the seat part translates backwards and downwards, the left auxiliary support piece and the right auxiliary support piece of the auxiliary support piece stretch backwards, the moment acted on the back component by the human body by ② is gradually increased, and the force for maintaining the sitting state against the moment is also gradually increased. The force for maintaining the sitting state is increased gradually, the back of the chair component is ensured to be stably inclined backwards, the seat component is ensured to stably translate backwards and downwards, and the left auxiliary supporting piece and the right auxiliary supporting piece which extend backwards ensure that the chair is stable and does not turn backwards. When the lying position is positioned at the lowest position, the lying support operating member is pulled up, the chair lying support component recovers the locking force, the chair is locked at the lowest lying position, stable and reliable switching from the sitting position to the lying position is realized, 2) before the lying support operating member is pressed to a certain node, the chair lying support component loses the locking force, and hands continue to press the lying support operating member and maintain in front of the node. The human back leans against the back component, the back component gradually leans backwards, and the chain reaction generated by the back component increases along with the back inclination angle of the back component is the same as that of the first operation method. When the required lying angle is obtained, the hand releases the lying support operating piece, the lying support operating piece automatically resets, and the chair lying support part automatically returns to the locking state. The second operation method is more convenient, and the stepless position adjustment of the chair in a certain range can be easily realized.
2. The specific operation and action of the chair to switch from lying to sitting.
The person leaves the chair, presses down the lying support operating member, or presses down the lying support operating member to a certain point, the chair lying support member loses locking force, is in the maximum or larger force for maintaining the sitting state, rotates the chair back member forward, and thus brings a chain reaction that ① the seat member translates forward and upward due to the motion characteristic of the parallelogram main body mechanism, the left auxiliary support member and the right auxiliary support member of the auxiliary support member retract forward, and the force for maintaining the sitting state of the ② chair lying support member gradually decreases, and the chair back member and the chair seat member are stably positioned in the sitting position by the chair lying support member. The operation piece of the lying support is operated, the chair lying support component restores the locking force, the chair is locked at the sitting position, and the stable switching from the lying position to the sitting position is completed.
In summary, the improvement and improvement of the two technical schemes of the main body structure of the reclining chair and the sitting sofa with the movable locking device and the sitting and lying switching mechanism of the sitting and lying seat with the patent number ZL201920360712.2 and the sitting and lying switching mechanism of the sitting and lying seat with the patent number ZL201921115887.3 are better matched with the characteristics of the main body mechanism of the parallelogram mechanism and the characteristics of the mature locking device. The locking device is improved by selecting a more matched locking device on the basis of keeping the advantages of the two schemes, namely convenient operation, simple structure, easy popularization and suitability for narrow occasions or reduced occupied area. The improved locking device comprises ① and ②, wherein the service life of the product is ensured to be enough and safe, the product is ensured to have enough and safe use performance, the sitting and lying mutual cutting is stable and reliable, the resistance to the moment of the chair back caused by the gradually increased human body force is increased after the locking force is eliminated in the process of switching from the sitting position to the lying position, and the resetting force is reduced from large to small after the locking force is eliminated in the process of resetting from the lying position to the sitting position, so that the resetting is smooth and stable. Therefore, the application range of the product is enlarged, and the sales of the product at home and abroad is improved.
Drawings
The following describes the preferred embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a left side view schematically showing the main structure of a chair for sitting and lying;
Fig. 2 is a schematic plan view of fig. 1 in a direction a.
Detailed Description
Examples of the present invention are described in detail below with reference to the accompanying drawings.
See fig. 1 and 2. The present example is mainly composed of a back member 1, a seat member 2, and a lock member 3. The back member 1 is mainly composed of a back side member 1-1, a back cross member 2-1 (shown by a broken line in fig. 1), and a back rest member 3-1 (shown by a two-dot chain line in fig. 2). The back side pieces 1-1 are a left back side piece 1-1 and a right back side piece 2-1-1, one end of the back cross piece 2-1 is fixedly connected with the left back side piece 1-1, the other end of the back cross piece 2-1 is fixedly connected with the right back side piece 2-1-1, the article formed by the back cross piece 2-1, the left back side piece 1-1 and the right back side piece 2-1-1 is a back frame component B-K, and the back rest piece 3-1 is fixedly connected on the back frame component B-K. The seat part 2 mainly comprises a front main support component 1-2, a rear main support component 2-2, side pieces 3-2, a seat piece 4-2 (shown by two-dot chain lines in fig. 2), a seat cross piece 5-2 (shown by broken lines in fig. 1) and a secondary support component 6-2, wherein the front main support component 1-2 mainly comprises a left front main support piece 1-2, a right front main support piece 2-1-2 and a front cross piece 3-1-2, one end of the front cross piece 3-1-2 is fixedly connected with the left front main support piece 1-1-2, and the other end of the front cross piece 3-1-2 (shown by broken lines in fig. 1) is fixedly connected with the right front main support piece 2-1-2. the rear main supporting component 2-2 mainly comprises left rear main supporting pieces 1-2-2, The right rear main supporting piece 2-2-2 and the rear transverse piece 3-2-2 (shown by a broken line in figure 1), one end of the rear transverse piece 3-2-2 is fixedly connected with the left rear main supporting piece 1-2-2, the other end of the rear transverse piece 3-2-2 is fixedly connected with the right rear main supporting piece 2-2, the side piece 3-2 is an upper side piece 1-3-2 and a lower side piece 2-3-2, the upper side piece 1-3-2 is a left upper side piece 1-1-3-2 and a right upper side piece 2-1-3-2, the lower side piece 2-3-2 is a left lower side piece 1-2-3-2 and a right lower side piece 2-2-3-2, one end of the seat transverse piece 5-2 is fixedly connected with the left upper side piece 1-1-3-2, the other end of the seat cross member 5-2 is fixedly connected with the right upper side member 2-1-3-2, the article formed by the seat cross member 5-2, the left upper side member 1-1-3-2 and the right upper side member 2-1-3-2 is a seat frame component Z-K, the seat member 4-2 is fixedly connected on the seat frame component Z-K, the rear end of the left upper side member 1-1-3-2 is rotationally connected with the upper end of the left rear main support member 1-2-2, the front end of the left upper side member 1-1-3-2 is rotationally connected with the upper end of the left front main support member 1-1-2, the rear end of the right upper side member 2-1-3-2 is rotationally connected with the right rear main support member 2-2-2, the front end of the right upper side piece 2-1-3-2 is rotationally connected with the upper end of the right front main support piece 2-1-2, the rear end of the left lower side piece 1-2-3-2 is rotationally connected with the left rear main support piece 1-2-2, the front end of the left lower side piece 1-2-3-2 is rotationally connected with the left front main support piece 1-1-2, the rear end of the right lower side piece 2-2-3-2 is rotationally connected with the right rear main support piece 2-2-2, and the front end of the right lower side piece 2-2-3-2 is rotationally connected with the right front main support piece 2-1-2. A parallelogram frame J-K is formed by a front main support assembly 1-2, a rear main support assembly 2-2, a seat frame assembly Z-K, a left lower side piece 1-2-3-2 and a right lower side piece 2-2-3-2. The lower end of the left back side piece 1-1-1 of the chair back piece is fixedly connected with the upper end of the left rear main support piece 1-2-2, and the lower end of the right back side piece 2-1-1 of the chair back piece 1 is fixedly connected with the upper end of the right rear main support piece 2-2-2 of the chair seat piece 2. the auxiliary supporting member assembly 6-2 mainly comprises auxiliary supporting members 1-6-2, auxiliary transverse members 2-6-2, The auxiliary supporting piece 3-6-2 is composed of a left auxiliary supporting piece 1-1-6-2 and a right auxiliary supporting piece 2-1-6-2, the upper part of the auxiliary supporting piece 1-6-2 is a horizontal part SB (shown by a broken line in figure 1), the lower part of the auxiliary supporting piece 1-6-2 is a diagonal part XB, one end of the auxiliary transverse piece 2-6-2 is fixedly connected with the left auxiliary supporting piece 1-1-6-2, the other end of the auxiliary transverse piece 2-6-2 is fixedly connected with the right auxiliary supporting piece 2-1-6-2, the diagonal part XB of the left auxiliary supporting piece 1-1-6-2 is rotatably connected with the left rear main supporting piece 1-2, the horizontal part SB of the left auxiliary supporting piece 1-1-6-2 is provided with a long groove C (shown by the broken line in figure 1), the diagonal part XB of the right auxiliary supporting piece 2-1-6-2 is rotatably connected with the right main supporting piece 2-2, the pressing piece 3-6-2 is fixedly connected with the right auxiliary supporting piece 2-1-6-2, the pressing piece 3-6-2 is fixedly connected with the left auxiliary supporting piece 1-2-2 (shown by the broken line in figure 1-2), the horizontal part SB of the left auxiliary supporting piece 1-1-6-2-2 is arranged on the left auxiliary supporting piece 1-2-2 (shown by the broken line 1-2) is arranged on the left auxiliary supporting piece 1-2-2, the left pressing and pulling piece 1-3-6-2 is movably connected with the long groove C of the left auxiliary supporting piece 1-1-6-2, the right pressing and pulling piece 2-3-6-2 is fixedly connected to the right upper side piece 2-1-3-2, and the right pressing and pulling piece 2-3-6-2 is movably connected with the long groove C of the right auxiliary supporting piece 2-1-6-2. The locking part 3 mainly comprises a fixed component 1-3, a movable component 2-3 and an operating piece 3-3, wherein the fixed component 1-3 is rotationally connected with the movable component 2-3, and the operating piece 3-3 is rotationally connected with the fixed component 1-3. The locking component 3 of the embodiment is a chair lying support component T-3, the fixing component 1-3 is a lying support fixing component T-1-3, the movable component 2-3 is a lying support movable component T-2-3, the operating component 3-3 is a lying support operating component T-3-3, the lying support fixing component T-1-3 and the lying support movable component T-2-3 are rotationally connected, the lying support operating component T-3-3 is rotationally connected to the lying support fixing component T-1-3, the lying support fixing component T-1-3 is fixedly connected to a seat cross piece 5-2 of the seat frame component Z-K, and the lying support movable component T-2-3 is fixedly connected to a back cross piece 2-1 of the seat back frame component B-K. A stopper X (shown in fig. 1 by a broken line) is provided on the front main supporting assembly 1-2. The lower ends of the left front main support piece 1-1-2, the right front main support piece 2-1-2, the left rear main support piece 1-2-2 and the right rear main support piece 2-2 are all provided with universal pulleys H1. The lower ends of the left auxiliary supporting piece 1-1-6-2 and the right auxiliary supporting piece 2-1-6-2 of the auxiliary supporting piece assembly 6-2 are provided with universal pulleys H2. One end of each of the pair of armrest assemblies F is rotatably connected to the back side member 1-1, and the other end of each of the pair of armrest assemblies F is rotatably connected to the upper side member 1-3-2. The pattern shown by the two-dot chain line at the left lower part of fig. 1 is a pattern when lying down.
With the above structure, specific operations and actions of an example of the main body structure of a sitting and lying dual-purpose chair are as follows.
1. The specific operation and action of the chair to switch from sitting to lying.
When the chair is in the sitting position, the chair lying support part T-3 is in a locking state. The chair can be switched from sitting to lying by 1) pressing down the lying support operating member T-3-3, the chair lying support member T-3 losing the locking force but still having a force to maintain the sitting position. The human back leans against the back component 1, the back component 1 gradually tilts backwards, and as the backward inclination angle of the back component 1 increases, the following chain reaction is generated, ①, due to the motion characteristic of the parallelogram main body mechanism, the seat component 4-2 translates backwards and downwards, the left auxiliary supporting component 1-1-6-2 and the right auxiliary supporting component 2-1-6-2 of the auxiliary supporting component 6-2 stretch backwards, the moment of ② acting on the back component 1 by the human body gradually increases, and the force for maintaining the sitting state against the moment also gradually increases. The gradually increased force for maintaining the sitting state ensures that the chair back part 1 stably tilts backwards and ensures that the chair seat part 2 stably translates backwards and downwards, and the left auxiliary supporting piece 1-1-6-2 and the right auxiliary supporting piece 2-1-6-2 which extend backwards ensure that the chair is stable and does not tilt backwards. When the lying position is positioned at the lowest position, the lying support operating member T-3-3 is pulled up, the chair lying support member T-3 recovers the locking force, the chair is locked at the lowest lying position, stable and reliable switching from the sitting position to the lying position is realized, 2) before the lying support operating member T-3-3 is pressed to a certain node, the chair lying support member T-3 loses the locking force, and hands continue to press the lying support operating member T-3-3 and are maintained in front of the node. The human back leans against the chair back part 1, the chair back part 1 gradually leans backwards, and the chain reaction generated along with the increase of the backward inclination angle of the chair back part 1 is the same as the first operation method. When the desired lying angle is obtained, the hand releases the lying support operating member T-3-3, the lying support operating member T-3-3 automatically resets, and the chair lying support member T-3 automatically returns to the locked state. The second operation method is more convenient, and the stepless position adjustment of the chair in a certain range can be easily realized.
2. The specific operation and action of the chair to switch from lying to sitting.
The person leaves the chair, presses down the lying support operating member T-3-3, or presses down the lying support operating member T-3-3 to a certain point, and before the lying support member T-3 loses the locking force, the chair lying support member T-3 is in the maximum or large force to maintain the sitting state, the chair back member 1 rotates forward, and thus the following chain reaction is brought about, ①, due to the motion characteristics of the parallelogram main body mechanism, the seat member 4-2 translates forward and upward, the left sub-support 1-1-6-2 and the right sub-support 2-1-6-2 of the sub-support 6-2 contract forward, and the force to maintain the sitting state of the ② chair lying support member T-3 is gradually reduced, and the chair back member 1 and the chair seat member 2 are stably positioned in the sitting position by the chair lying support member T-3. The chair lying support operating piece T-3-3 is operated, the chair lying support part T-3 restores the locking force, the chair is locked at the sitting position, and the stable switching from the lying position to the sitting position is completed.
In summary, the improvement and improvement of the two technical schemes of the main body structure of the reclining chair and the sitting sofa with the movable locking device and the sitting and lying switching mechanism of the sitting and lying seat with the patent number ZL201920360712.2 and the sitting and lying switching mechanism of the sitting and lying seat with the patent number ZL201921115887.3 are better matched with the characteristics of the main body mechanism of the parallelogram mechanism and the characteristics of the mature locking device. The locking device is improved by selecting a more matched locking device on the basis of keeping the advantages of the two schemes, namely convenient operation, simple structure, easy popularization and suitability for narrow occasions or reduced occupied area. The improved locking device comprises ① and ②, wherein the service life of the product is ensured to be enough and safe, the product is ensured to have enough and safe use performance, the sitting and lying mutual cutting is stable and reliable, the resistance to the moment of the chair back caused by the gradually increased human body force is increased after the locking force is eliminated in the process of switching from the sitting position to the lying position, and the resetting force is reduced from large to small after the locking force is eliminated in the process of resetting from the lying position to the sitting position, so that the resetting is smooth and stable. Therefore, the application range of the product is enlarged, and the sales of the product at home and abroad is improved.
Claims (3)
1. The main body structure of the chair mainly comprises a chair back part, a chair seat part and a locking part, wherein the chair back part (1) mainly comprises a back side part (1-1), The back cross member (2-1) and the backrest member (3-1) are formed, the backrest member (1-1) is a left backrest member (1-1-1) and a right backrest member (2-1-1), one end of the backrest cross member (2-1) is fixedly connected with the left backrest member (1-1), the other end of the backrest cross member (2-1) is fixedly connected with the right backrest member (2-1-1), the article formed by the backrest cross member (2-1) and the left backrest member (1-1-1) and the right backrest member (2-1) is a backrest frame assembly (B-K), the backrest member (3-1) is fixedly connected with the backrest frame assembly (B-K), the backrest member (2) is mainly formed by a front main support assembly (1-2), The novel bicycle is characterized by comprising a rear main support assembly (2-2), side pieces (3-2), a seat piece (4-2), a seat cross piece (5-2) and a secondary support assembly (6-2), wherein the front main support assembly (1-2) mainly comprises a left front main support (1-1-2), a right front main support (2-1-2) and a front cross piece (3-1-2), one end of the front cross piece (3-1-2) is fixedly connected with the left front main support (1-1-2), the other end of the front cross piece (3-1-2) is fixedly connected with the right front main support (2-1-2), and the rear main support assembly (2-2) mainly comprises a left rear main support (1-2-2), The right rear main supporting piece (2-2-2) and the rear transverse piece (3-2-2) are formed, one end of the rear transverse piece (3-2-2) is fixedly connected with the left rear main supporting piece (1-2-2), the other end of the rear transverse piece (3-2-2) is fixedly connected with the right rear main supporting piece (2-2), the side piece (3-2) is an upper side piece (1-3-2) and a lower side piece (2-3-2), the upper side piece (1-3-2) is a left upper side piece (1-1-3-2) and a right upper side piece (2-1-3-2), the lower side piece (2-3-2) is a left lower side piece (1-2-3-2) and a right lower side piece (2-2-3-2), one end of the seat transverse piece (5-2) is fixedly connected with the left upper side piece (1-3-2) and the other end of the seat (1-2-2) is fixedly connected with the right upper side piece (2-2), the article formed by the transverse seat member (5-2) and the left upper side member (1-1-3-2) and the right upper side member (2-1-3-2) is a seat frame component (Z-K), the seat member (4-2) is fixedly connected on the seat frame component (Z-K), the rear end of the left upper side member (1-1-3-2) is rotationally connected with the upper end of the left rear main support member (1-2-2), the front end of the left upper side member (1-1-3-2) is rotationally connected with the upper end of the left front main support member (1-1-2), the rear end of the right upper side member (2-1-3-2) is rotationally connected with the right rear main support member (2-2-2), the front end of the right upper side member (2-1-3-2) is rotationally connected with the upper end of the right rear main support member (1-2-2), the front end of the left upper side member (1-1-3-2) is rotationally connected with the front end of the left main support member (1-2-2-2), the front end of the right upper side member (1-2-2-2) is rotationally connected with the front end of the left upper side member (1-2-2) at a proper position, the rear end of the right lower side piece (2-2-3-2) is rotationally connected with the proper position of the right rear main support piece (2-2-2), the front end of the right lower side piece (2-2-3-2) is rotationally connected with the proper position of the right front main support piece (2-1-2), and the front main support piece is rotationally connected with the proper position of the right front main support piece (2-1-2) by the front main support assembly (1-2), The rear main support component (2-2), the seat frame component (Z-K), The left lower side piece (1-2-3-2) and the right lower side piece (2-2-3-2) form a parallelogram frame (J-K), the parallelogram frame (J-K) is provided with a limiting piece (X), the position of the limiting piece (X) is adjustable, the lower end of the left back side piece (1-1-1) of the chair back part (1) is fixedly connected with the upper end of the left back main support piece (1-2-2), the lower end of the right back side piece (2-1-1) of the chair back part (1) is fixedly connected with the upper end of the right back main support piece (2-2-2) of the chair seat part (2), the auxiliary support piece assembly (6-2) is mainly composed of an auxiliary support piece (1-6-2), The auxiliary transverse member (2-6-2) and the pressing and pulling member (3-6-2) are formed, the auxiliary supporting member (1-6-2) is a left auxiliary supporting member (1-1-6-2) and a right auxiliary supporting member (2-1-6-2), the upper part of the auxiliary supporting member (1-6-2) is a horizontal part (SB), the lower part of the auxiliary supporting member (1-6-2) is an inclined part (XB), one end of the auxiliary transverse member (2-6-2) is fixedly connected with the left auxiliary supporting member (1-1-6-2), the other end of the auxiliary transverse member (2-6-2) is fixedly connected with the right auxiliary supporting member (2-1-6-2), the right inclined part (XB) of the left auxiliary supporting member (1-1-6-2) is in a proper position and is in a rotary connection with the right main supporting member (1-2) at a proper position, the right auxiliary supporting member (1-6-2) is in a proper position and the right auxiliary supporting member (1-2) is in a proper position and is in a rotary connection with the right main supporting member (2) at the right auxiliary supporting member (2-2) and the inclined part (2-1-2-2), the pressing and pulling piece (3-6-2) is a left pressing and pulling piece (1-3-6-2) and a right pressing and pulling piece (2-3-6-2), the horizontal part (SB) of the right auxiliary supporting piece (2-1-6-2) is provided with a long groove (C), the left pressing and pulling piece (1-3-6-2) is fixedly connected on the left upper side piece (1-1-3-2), the left pressing and pulling piece (1-3-6-2) is movably connected with the long groove (C) of the left auxiliary supporting piece (1-1-6-2), the right pressing and pulling piece (2-3-6-2) is fixedly connected to the right upper side piece (2-1-3-2), the right pressing and pulling piece (2-3-6-2) is movably connected with the long groove (C) of the right auxiliary supporting piece (2-1-6-2), the locking part (3) is a chair lying support part (T-3), and the chair lying support part (T-3) comprises a lying support fixing assembly (T-1-3), The novel chair comprises a lying support movable assembly (T-2-3) and a lying support operation piece (T-3-3), wherein the lying support movable assembly (T-1-3) is rotationally connected with the lying support movable assembly (T-2-3), the lying support operation piece (T-3-3) is rotationally connected with the lying support fixed assembly (T-1-3), the lying support fixed assembly (T-1-3) is fixedly connected with a seat cross member (5-2) of a seat frame assembly (Z-K), the lying support movable assembly (T-2-3) is fixedly connected with a back cross member (2-1) of a chair back frame assembly (B-K), and an armrest assembly (F) is arranged between the chair back frame assembly (B-K) and the seat frame assembly (Z-K).
2. The main body structure of a sitting and lying dual-purpose chair according to claim 1, characterized in that the lower part of the parallelogram frame (J-K) is provided with pulleys (H1).
3. A main body structure of a chair for sitting and lying according to claim 1, characterized in that the lower part of the sub-support assembly (6-2) is provided with pulleys (H2).
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| CN214016755U (en) * | 2020-11-24 | 2021-08-24 | 江山市奇栖正机电科技有限公司 | Main body structure of dual-purpose chair for sitting and lying |
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| JP4047045B2 (en) * | 2002-03-29 | 2008-02-13 | コクヨ株式会社 | Chair |
| JP5634890B2 (en) * | 2011-01-17 | 2014-12-03 | カリモク家具株式会社 | Chair |
| CN106108443B (en) * | 2016-08-05 | 2023-08-15 | 佛山职业技术学院 | Adjustable chair |
| WO2018073222A1 (en) * | 2016-10-18 | 2018-04-26 | Vitra Patente Ag | Synchronous chair mechanism and chair having one such |
| CN208144812U (en) * | 2018-03-12 | 2018-11-27 | 江山市奇栖正机电科技有限公司 | A kind of telescopic dual purposes of sitting and lying chair |
| KR20200116251A (en) * | 2019-04-01 | 2020-10-12 | (주) 파트라 | Chair having tiltable backrest |
| CN110584362A (en) * | 2019-08-29 | 2019-12-20 | 江山市奇栖正机电科技有限公司 | Sitting and lying switching frame of sitting and lying seat |
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Effective date of registration: 20250710 Address after: 528000 Guangdong Province Foshan City Chancheng District Nanzhuang Town Wucun Xwei Industrial Land Plot 72 Factory No. 8 Applicant after: Foshan Qiangshou Intelligent Furniture Co.,Ltd. Country or region after: China Address before: Jiangshan City, Zhejiang province Quzhou city Shimen town 324107 village Zhaitang Trillium Lane No. 7 Applicant before: JIANGSHAN QIQIZHENG ELECTROMECHANICAL TECHNOLOGY CO.,LTD. Country or region before: China |
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