CN218484118U - Self-adaptive chair back mechanism - Google Patents
Self-adaptive chair back mechanism Download PDFInfo
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- CN218484118U CN218484118U CN202222332266.9U CN202222332266U CN218484118U CN 218484118 U CN218484118 U CN 218484118U CN 202222332266 U CN202222332266 U CN 202222332266U CN 218484118 U CN218484118 U CN 218484118U
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- chair back
- guide structure
- sliding guide
- protective cover
- adaptive
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Abstract
The utility model discloses a self-adaptive chair back mechanism, which comprises a back support, a back support frame and a chair back frame, wherein the chair back frame is provided with a sliding guide structure, and a threaded mounting hole is also arranged in the sliding guide structure; the chair back is provided with a slot matched with the sliding guide structure, the chair back can be movably arranged on the backrest part, and one side of the sliding guide structure is also provided with a first mounting part; the protective cover is fixed on the backrest part through a threaded mounting hole, the backrest is mounted between the protective cover and the backrest part, and a second mounting part is arranged on the inner wall of the protective cover; one end of the elastic connecting piece is connected with the first mounting part, and the other end of the elastic connecting piece is connected with the second mounting part; the chair back reciprocates under the limit of the sliding guide structure, and the elastic connecting piece is used for automatic resetting after the chair back moves. The self-adaptive chair back mechanism can adapt to the height of the waist of a person, the height of the chair back is self-adaptively adjusted according to the sitting posture of the person and the weight of the back, and when a user leaves the chair back, the chair back can automatically reset, so that the fatigue degree can be relieved.
Description
Technical Field
The utility model relates to the technical field of seats, in particular to self-adaptation back of chair mechanism.
Background
The seat is one of the most commonly used furniture in daily life, the comfort requirement of a user on the seat is higher and higher, the lumbar vertebra and the cervical vertebra of the user are damaged in different degrees after the user sits on the seat for a long time, and the cervical spondylosis and the lumbar vertebra disease are even caused by the ache feeling generated after the user sits for a long time. The waist height of different users is inconsistent, and pastes tight back and can bring more comfortable experience for the user when leaning back the back of the chair, alleviates to sit for a long time on the seat to the damage of lumbar vertebrae and cervical vertebra, and the back of the chair is provided with manual adjustment mechanism among the correlation technique, and this type back of the chair needs the manual operation, has the loaded down with trivial details problem of adjustment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an adaptive chair back mechanism can adapt to the height of people's waist, according to the height of the weight self-adaptation adjustment back of the chair of human position of sitting and back, and after the user left, the back of the chair can automatic re-setting.
According to the utility model discloses an adaptive back of chair mechanism of first aspect embodiment includes: the backrest part is provided with a sliding guide structure, and a threaded mounting hole is formed in the sliding guide structure;
the chair back is provided with a slot matched with the sliding guide structure, the chair back can be movably arranged on the backrest part, and one side of the sliding guide structure is also provided with a first installation part;
the protective cover is fixed on the backrest part through the threaded mounting hole, the backrest is mounted between the protective cover and the backrest part, and a second mounting part is arranged on the inner wall of the protective cover;
one end of the elastic connecting piece is connected with the first mounting part, and the other end of the elastic connecting piece is connected with the second mounting part;
the chair back reciprocates under the limit of the sliding guide structure, and the elastic connecting piece is used for automatic resetting after the chair back moves.
According to the utility model discloses self-adaptation back of chair mechanism has following beneficial effect at least: the backrest part is provided with the sliding guide structure, so that the movement of the chair back can be limited, the damage of the elastic connecting piece caused by the excessive movement of the chair back is avoided, and the slot of the chair back and the sliding guide structure are matched with each other to limit the reciprocating movement of the chair back in the vertical direction. One end of the elastic connecting piece is fixed on the chair back, the other end of the elastic connecting piece is fixed on the protective cover, the elastic connecting piece can realize automatic reset, and when a user lies on the chair back, the chair back can be adjusted within a certain range to be more fit with the back of the user, so that the chair back is more close-fitting and comfortable. The self-adaptive chair back mechanism can improve the comfort level of the chair, and is suitable for being used at different age stages through adjusting the position of the chair back.
According to the utility model discloses a some embodiments, the both ends of sliding guide structure are provided with the circular arc changeover portion, grooved both ends are provided with the circular arc changeover portion equally. The contact area of the sliding guide structure and the groove can be increased by arranging the arc transition section, the sliding guide structure and the groove are prevented from being damaged, and the service life of the self-adaptive chair back mechanism is prolonged.
According to the utility model discloses a some embodiments, grooved lateral wall is provided with the breach, the breach joint has the antiskid ring, the antiskid ring surrounds the fluting sets up, the inner wall of antiskid ring with the sliding guide structure mutually supports. The anti-slip ring can increase the friction force between the chair back and the sliding guide structure, and avoid unnecessary sliding between the sliding guide structure and the open groove.
According to some embodiments of the invention, the slip ring is made of a flexible anti-slip material. The friction force can be further increased.
According to some embodiments of the utility model, the top of visor is provided with first buffer, the bottom of visor is provided with second buffer, first buffer with second buffer follows the direction of back of the chair activity sets up relatively, first buffer with second buffer is used for providing cushioning effect when for visor and back of the chair butt. Avoid the contact of visor and back of the chair to produce bigger impact, the noise reduction to improve user's satisfaction.
According to some embodiments of the present invention, the first buffer device and the second buffer device are buffer rubber pads.
According to some embodiments of the utility model, the visor with back of the chair butt department is provided with first rolling device, back portion with back of the chair butt department is provided with the second rolling device. The first rolling device and the second rolling device can reduce noise, the first rolling device can avoid abrasion between the protective cover and the chair back, and the second rolling device can avoid abrasion between the backrest part and the chair back.
According to some embodiments of the invention, the first rolling device is mounted on the protective cover, the second rolling device is mounted on the backrest portion, and the first rolling device and the second rolling device are rollers. The arrangement of the idler wheels can reduce noise generated when the chair back slides, and the satisfaction degree of a user is improved.
According to some embodiments of the utility model, the back of the chair sets up the spacing groove, the top of back portion is provided with the sand grip, the spacing groove with the sand grip mutually support with right the reciprocating motion of the back of the chair makes spacingly. The limiting groove is arranged to limit the movement range of the chair back, and damage to the elastic connecting piece is avoided.
According to some embodiments of the utility model, the elastic connection piece is the extension spring.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
fig. 1 is a schematic view of an adaptive chair back mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view of a back bracket;
FIG. 3 is an enlarged schematic view of the back rest;
FIG. 4 is a three-dimensional schematic view of a chair back;
FIG. 5 is a three-dimensional schematic view of the back of the protective cover;
FIG. 6 is a three-dimensional view of the front of the protective cover;
fig. 7 is a schematic view of the back of the chair back.
Reference numerals: a chair back 100; a protective cover 105; a back support 110; a base 120; a backrest portion 130; a slide guide structure 140; ribs 150; a second scrolling device 160; an anti-slip ring 170; a first mounting portion 180; a notch 190; a first buffer device 200; a second buffer 210; a second mounting portion 220; an elastic connection member 230; a first scrolling device 240; a threaded mounting hole 250; a retaining groove 260.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.
Referring to fig. 1, fig. 1 is a schematic diagram of an adaptive seatback mechanism including a back bracket 110, a seatback 100, and a protective cover 105. The self-adaptive chair back mechanism can automatically adjust the height of the chair back 100, is suitable for the sitting postures of people of different ages, and improves the comfort level of users.
Referring to fig. 2 to 6, the back bracket 110 includes a base 120 and a backrest portion 130, the backrest portion 130 is provided with a slide guide structure 140, and a screw-threaded mounting hole 250 is provided in the slide guide structure 140. The seat back 100 is provided with a slot matched with the sliding guide structure 140, the seat back 100 can be movably mounted on the seat back part 130, and one side of the sliding guide structure 140 is further provided with a first mounting part 180. The protective cover 105 is fixed to the backrest part 130 through a screw mounting hole 250, the backrest 100 is mounted between the protective cover 105 and the backrest part 130, and the inner wall of the protective cover 105 is provided with a second mounting part 220. One end of the elastic connecting piece 230 is connected with the first mounting part 180, the other end is connected with the second mounting part 220, the chair back 100 can realize reciprocating motion under the limit of the sliding guide structure 140, and the elastic connecting piece 230 is used for automatic reset after the chair back 100 moves. When a user lies on the self-adaptive chair back mechanism, the back of the user exerts a force on the chair back 100 in the vertical direction, and the chair back 100 can move within a certain limit, so that the chair back 100 can better fit the radian of the back of the user, and the comfort level and the satisfaction level of the user are improved. The elastic connection member 230 is a tension spring, and automatic reset can be achieved by using the tension spring.
Referring to fig. 2 and 3, arc transition sections are provided at both ends of the sliding guide structure 140, arc transition sections are also provided at both ends of the slot, and the arc transition sections of the sliding guide structure 140 and the slot arc transition sections are matched with each other. Stress concentration can be reduced and damage to the sliding guide structure 140 or the slot can be prevented during use. The arc transition section can also increase the contact area when the sliding guide structure 140 abuts against the slot, thereby avoiding the abrasion of the sliding guide structure 140 and the slot and prolonging the service life of the self-adaptive chair back 100. The side wall of the slot is provided with a notch 190, the anti-slip ring 170 is clamped at the notch 190, the anti-slip ring 170 is arranged around the slot, and when the self-adaptive chair back works normally, the inner wall of the anti-slip ring 170 is matched with the sliding guide structure 140. The anti-slip ring 170 can increase the friction force between the chair back 100 and the sliding guide structure 140, and avoid the unnecessary sliding between the sliding guide structure 140 and the slot from affecting the fixing effect of the chair back 100. The slip prevention ring 170 is made of a flexible slip prevention material to further increase friction.
The top of the protective cover 105 is provided with a first buffer device 200, the bottom of the protective cover 105 is provided with a second buffer device 210, the first buffer device 200 and the second buffer device 210 are oppositely arranged along the moving direction of the chair back 100, the first buffer device 200 and the second buffer device 210 are used for providing a buffer effect when the protective cover 105 is abutted against the chair back 100, large impact is avoided when the protective cover 105 is in contact with the chair back 100, noise is reduced, and satisfaction of a user is further improved. When the user drags the chair back 100 to move, due to the limiting effect of the slot and the sliding guide structure 140, the slot and the sliding guide structure 140 may collide, and the noise generated during the collision can be reduced by arranging the first buffer device 200 and the second buffer device 210. The first buffer device 200 and the second buffer device 210 are buffer rubber pads.
Referring to fig. 3 and 5, a first rolling device 240 is disposed at a position where the protective cover 105 abuts against the seatback 100, a second rolling device 160 is disposed at a position where the seatback 130 abuts against the seatback 100, the first rolling device 240 and the second rolling device 160 can reduce noise generated when the seatback 100 moves relatively, the first rolling device 240 can reduce abrasion between the protective cover 105 and the seatback 100, and the second rolling device 160 can reduce abrasion between the seatback 130 and the seatback 100, thereby ensuring service lives of the back support 110, the seatback 100, and the protective cover 105. The first rolling device 240 is installed on the protective cover 105, the second rolling device 160 is installed on the backrest portion 130, and the first rolling device 240 and the second rolling device 160 are rollers, which can reduce noise and abrasion when the backrest 100 slides.
Referring to fig. 3 and 6, the back of the seat back 100 is provided with a limiting groove 260, the top of the seat back 130 is provided with a protruding strip 150, and the limiting groove 260 and the protruding strip 150 cooperate to limit the reciprocating motion of the seat back 100.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. An adaptive chair back mechanism, comprising:
the backrest part is provided with a sliding guide structure, and a threaded mounting hole is formed in the sliding guide structure;
the chair back is provided with a slot matched with the sliding guide structure, the chair back can be movably arranged on the backrest part, and one side of the sliding guide structure is also provided with a first installation part;
the protective cover is fixed on the backrest part through the threaded mounting hole, the backrest is mounted between the protective cover and the backrest part, and a second mounting part is arranged on the inner wall of the protective cover;
one end of the elastic connecting piece is connected with the first mounting part, and the other end of the elastic connecting piece is connected with the second mounting part;
the chair back reciprocates under the limit of the sliding guide structure, and the elastic connecting piece is used for automatic resetting after the chair back moves.
2. An adaptive chair back mechanism according to claim 1, wherein the two ends of the sliding guide structure are provided with arc transition sections, and the two ends of the slot are also provided with arc transition sections.
3. The adaptive chair back mechanism as claimed in claim 1, wherein the side wall of the slot is provided with a notch, the notch is clamped with an anti-slip ring, the anti-slip ring is arranged around the slot, and the inner wall of the anti-slip ring is matched with the sliding guide structure.
4. An adaptive chair back mechanism according to claim 3, wherein the anti-slip ring is made of a flexible anti-slip material.
5. The adaptive chair back mechanism according to claim 1, wherein a first buffer device is arranged at the top of the protective cover, a second buffer device is arranged at the bottom of the protective cover, the first buffer device and the second buffer device are oppositely arranged along the direction of the movement of the chair back, and the first buffer device and the second buffer device are used for providing a buffer effect when the protective cover is abutted against the chair back.
6. An adaptive chair back mechanism according to claim 5, wherein the first and second cushioning means are cushion rubber pads.
7. An adaptive chair back mechanism according to claim 1, wherein a first rolling means is provided at the point where the protective cover abuts the chair back and a second rolling means is provided at the point where the backrest abuts the chair back.
8. An adaptive chair back mechanism according to claim 7, wherein the first rolling means is mounted on the protective cover and the second rolling means is mounted on the backrest portion, the first and second rolling means being rollers.
9. An adaptive chair back mechanism according to claim 1, wherein the back of the chair back is provided with a limiting groove, the top of the chair back is provided with a protruding strip, and the limiting groove and the protruding strip cooperate with each other to limit the reciprocating motion of the chair back.
10. An adaptive chair back mechanism according to claim 1, wherein the resilient connecting member is a tension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222332266.9U CN218484118U (en) | 2022-09-01 | 2022-09-01 | Self-adaptive chair back mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222332266.9U CN218484118U (en) | 2022-09-01 | 2022-09-01 | Self-adaptive chair back mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218484118U true CN218484118U (en) | 2023-02-17 |
Family
ID=85187663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222332266.9U Active CN218484118U (en) | 2022-09-01 | 2022-09-01 | Self-adaptive chair back mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218484118U (en) |
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2022
- 2022-09-01 CN CN202222332266.9U patent/CN218484118U/en active Active
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