CN106419239B - Adjusting structure of seat back linkage chair damping mechanism - Google Patents
Adjusting structure of seat back linkage chair damping mechanism Download PDFInfo
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- CN106419239B CN106419239B CN201610738326.3A CN201610738326A CN106419239B CN 106419239 B CN106419239 B CN 106419239B CN 201610738326 A CN201610738326 A CN 201610738326A CN 106419239 B CN106419239 B CN 106419239B
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- frame
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- bottom plate
- swing
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 238000013016 damping Methods 0.000 title claims abstract description 21
- 238000005192 partition Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 15
- 229920001971 elastomer Polymers 0.000 abstract description 5
- 239000000806 elastomer Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
Abstract
The invention relates to an adjusting structure of a seat back linkage chair damping mechanism, which comprises a base, a swing frame, an elastic body and an adjusting device, wherein one end of the swing frame is hinged with the base and the swing frame rotates around the hinge point, and the adjusting device comprises an adjusting handle, a stroke adjusting frame and a driving device for changing the position of the stroke adjusting frame; the driving device and the stroke adjusting frame are arranged in the swing frame and synchronously swing along with the swing frame; one end of the elastic body is abutted with the swing frame and connected with the stroke adjusting frame. The base slide plate of linkage chair sets up the other end at the rocker, and in the use of linkage chair, the slide removes along predetermined direction, drives the rocker and rotates around the pin joint, and the elastomer is in this in-process to the reverse component that the rocker applyed, plays the effect that makes the slide more steady. Because the driving device and the stroke adjusting frame are arranged in the swinging frame and synchronously swing with the swinging frame, the stroke adjusting frame is still connected with the elastic body in the swinging process, namely the adjusting handle can still adjust the elastic body.
Description
Technical Field
The invention relates to an auxiliary mechanism of a chair, in particular to an adjusting structure of a seat back linkage chair damping mechanism.
Background
The office chair is used as an important office appliance in daily office life, and the comfort level of the chair is directly related to the working life quality of people. Many office chairs in the market at present have the functions of height adjustment and backrest inclination angle adjustment, in order to enable the chair back to be attached to the waist of a human body more comfortably, and meanwhile, in order to enable a user to tilt the chair back more safely, more office chairs adopt a structure of linkage of the chair back and a chair seat, but the linkage chair is not adjustable due to the fact that the tension springs are arranged, the body types, the weight and the like of people are different, in the actual use process, people with heavy body weight feel that the restoring force of the tension springs is too small, the people are easy to tilt suddenly and excessively in the tilting process, and even overturn occurs; and the people with light weight easily feel that the restoring force of the tension spring is overlarge, and larger force needs to be applied to the backrest in the tilting process, so that the rest effect is influenced.
The applicant has devised a damping mechanism for a seat back linkage chair, comprising a base, a swing frame, an elastic body and an adjusting device, wherein one end of the swing frame is hinged with the base and the swing frame rotates around the hinge point, one end of the elastic body is abutted against the swing frame, the other end of the swing frame is driven to deform and form restoring force when rotating around the hinge point under the action of driving force, and the adjusting device adjusts the abutting position of the elastic body and the swing frame to change the magnitude of restoring force, so that the magnitude of driving force is changed. However, the adjusting device can only adjust the abutting position of the elastic body and the swinging frame at the beginning, and after the swinging frame swings, the elastic body is compressed, and at the moment, the adjusting device is separated from the elastic body, so that the elastic body can not be adjusted any more.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the adjusting structure of the seat back linkage chair damping mechanism, which has simple structure and better chair back restoring force adjusting effect, and the adjusting structure can still be adjusted in the use process of the seat back linkage chair.
In order to achieve the above object, the present invention adopts the following technical scheme:
the adjusting structure of the seat back linkage chair damping mechanism comprises a base, a swing frame, an elastic body and an adjusting device, wherein one end of the swing frame is hinged with the base and the swing frame rotates around the hinge point, and the adjusting device comprises an adjusting handle, a stroke adjusting frame and a driving device for changing the position of the stroke adjusting frame; the driving device and the stroke adjusting frame are arranged in the swing frame and synchronously swing along with the swing frame; one end of the elastic body is abutted with the swing frame and connected with the stroke adjusting frame. The base slide plate of linkage chair sets up the other end at the rocker, and in the use of linkage chair, the slide removes along predetermined direction, drives the rocker and rotates around the pin joint, and the elastomer is in this in-process to the reverse component that the rocker applyed, plays the effect that makes the slide more steady. The damping adjusting mechanism adjusts the connection position of the elastic body and the swing frame through the adjusting device, so that the force arm of the elastic body is changed, the size of the restoring moment of the backrest in the tilting process is changed, and the chair can meet the requirements of people with different body types. And the structure is simple, and the adjusting range is wider. Meanwhile, as the driving device and the stroke adjusting frame are arranged in the swinging frame and synchronously swing with the swinging frame, the stroke adjusting frame still keeps connection with the elastic body in the swinging process, namely, the adjusting handle can still adjust the elastic body.
Preferably, a first gear is arranged at the inner end of the adjusting handle; the driving device comprises a screw, a nut and a second gear, the nut is fixed on the stroke adjusting frame, the screw is in threaded fit with the nut, and the second gear is fixed at one end of the screw and meshed with the first gear; the second gear adopts an arc gear. Because the driving device and the stroke adjusting frame are arranged in the swing frame and swing synchronously with the swing frame, and the second gear adopts the arc gear, the first gear is still meshed with the second gear in the swing process, namely, the adjusting handle can still adjust the elastic body.
Preferably, the swing frame comprises an upper bottom plate and a lower bottom plate which are parallel to each other, one ends of the upper bottom plate and the lower bottom plate are fixed through an end plate, a second gear is fixed on the end plate, the middle part of one side of the upper bottom plate and the middle part of one side of the lower bottom plate are fixed through a side plate, a partition plate perpendicular to the upper bottom plate and the lower bottom plate is arranged on the side plate, and a gap is reserved between the partition plate and the upper bottom plate and between the partition plate and the lower bottom plate; one end of the screw rod is fixed on the partition board in a penetrating way.
Preferably, the stroke adjusting frame is inserted in a gap between the partition plate and the upper bottom plate as well as between the partition plate and the lower bottom plate, and is limited by the partition plate.
Preferably, the stroke adjusting frame comprises two adjusting frame side plates arranged in parallel and an adjusting frame connecting plate vertically connected with the two adjusting frame side plates, a nut is arranged on the adjusting frame connecting plate, one end of an elastic body is arranged between the two adjusting frame side plates, and the elastic body is hinged with the two adjusting frame side plates through a hinge shaft.
Preferably, the elastic body is a pressure spring and a telescopic guide column, one end of the telescopic guide column is hinged with the stroke adjusting frame, the other end of the telescopic guide column is hinged with the base, and the pressure spring is sleeved on the telescopic guide column. The telescopic guide post is arranged in the compression spring, so that the deformation direction of the spring is limited, the torsion of the compression spring is avoided, and the service life of the compression spring is prolonged.
Preferably, the telescopic guide post comprises a first sleeve and a second sleeve which are nested with each other, the first sleeve is hinged with the stroke adjusting frame, the second sleeve is hinged with the base, a stop block is respectively fixed at the position of the first sleeve, which is close to the hinged end, and the position of the second sleeve, which is close to the hinged end, and two ends of the pressure spring are respectively propped against the stop block.
Preferably, an arch notch is formed in the middle of the swing frame, rollers are further arranged at two ends of the hinge shaft at the hinge position of the telescopic guide post and the stroke adjusting frame, and the rollers are propped against the arch notch. The roller is arranged on the telescopic guide post, so that when the abutting position of the telescopic guide post and the swing arm is adjusted, the friction between the telescopic guide post and the swing arm is rolling friction, the friction force is relatively small, the adjusting process is more labor-saving, and abrasion is avoided.
Preferably, the base is further provided with a first hinge block, and one end of the swing frame is hinged to the first hinge block.
Preferably, the base is also provided with a second hinging block; the other end of the elastic body is hinged on the second hinge block.
Compared with the prior art, the invention has the following advantages:
1. the invention provides an adjusting structure of a seat back linkage chair damping mechanism which is simpler in structure and wider in adjusting range. The principle of lever is taken as a theoretical basis, namely f1.l1=f2.l2, and power is multiplied by power arm=resistance is multiplied by resistance arm. The size of the resistance arm is changed by adjusting and changing the size of the resistance moment, different initial force arms are arranged according to the body types of different people, so that the use requirements of each person are met, and the linkage chair can always operate stably in the process of using the linkage chair.
Specifically, in the rotation process of the swing frame around the hinge point, the elastic body plays a role in blocking the rotation of the swing frame, namely, provides resistance, the resistance arm is the vertical distance from the resistance direction to the hinge point, the external force provides driving force for the rotation of the swing frame, the acting point is the other end of the swing frame, the vertical distance from the driving force direction to the hinge point is the power arm, and in the rotation process of the swing frame, the magnitude of the force arm is almost consistent and only slightly different all the time, because the different people have different perceptions on the magnitude of the force, the power is multiplied by the power arm=the resistance is multiplied by the resistance arm according to the lever principle f1·l1=f2·l2, and the magnitude of the required driving force can be effectively regulated by regulating the magnitude of the resistance arm. Therefore, according to different perceptions of different people on the force, the abutting position of the elastic body and the swing frame is adjusted through the adjusting device, so that the size of the resistance arm is changed, the change of the resistance moment received by the chair seat in the tilting process of the backrest is realized, the required initial driving force is changed, the requirements of different people are met, and in the using process, the backrest is not felt to be too heavy, and the backrest is not suddenly tilted backwards due to too small resistance moment.
2. Because the driving device and the stroke adjusting frame are arranged in the swing frame and swing synchronously with the swing frame, and the second gear adopts the arc gear, the first gear is still meshed with the second gear in the swing process, namely, the adjusting handle can still adjust the elastic body.
Drawings
Fig. 1 is a schematic view of the overall planar structure of the present invention.
Fig. 2 is a schematic cross-sectional structure of the present invention.
Fig. 3 is a schematic overall perspective view of the present invention.
Fig. 4 is a schematic view of the compressed structure of the compression spring of the present invention.
Fig. 5 is a schematic view of the apparatus of the present invention with the base plate removed.
Fig. 6 is a schematic structural view of the swing frame of the present invention.
FIG. 7 is a schematic illustration of the engagement of the elastomer of the present invention with the stroke adjustment bracket.
Fig. 8 is a schematic cross-sectional view of the compression spring and the telescopic guide post of the present invention.
Fig. 9 is a schematic view showing engagement of the first gear and the second gear before the compression spring of the present invention is compressed.
Fig. 10 is a schematic view showing engagement of the first gear and the second gear after the compression spring of the present invention is compressed.
Fig. 11 is a schematic structural view of the stroke adjusting frame.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Example 1:
the damping mechanism of the seat back linkage chair and the adjusting structure thereof shown in figures 1-11 comprise a base 1, a swinging frame 3, an elastic body and an adjusting device, wherein one end of the swinging frame 3 is hinged with the base 1, the swinging frame rotates around the hinge point, one end of the elastic body is propped against the swinging frame 3, when the other end of the swinging frame 3 rotates around the hinge point under the action of driving force, the elastic body is promoted to deform so as to form restoring force, and the abutting position of the elastic body and the swinging frame 3 is adjusted by the adjusting device so as to change the magnitude of restoring moment, and then the magnitude of driving moment is changed. The base 1 is also provided with a first hinging block 11, and one end of the swinging frame 3 is hinged on the first hinging block 11.
The base 1 is also provided with a second hinging block 12; the other end of the elastomer is hinged to the second hinge block 12.
The swing frame 3 comprises an upper bottom plate 32 and a lower bottom plate 33 which are parallel to each other, one ends of the upper bottom plate 32 and the lower bottom plate 33 are fixed through an end plate 34, a second gear 81 is fixed on the end plate 34, the middle part of one side of the upper bottom plate 32 and the middle part of one side of the lower bottom plate 33 are fixed through a side plate 35, a partition plate 36 perpendicular to the upper bottom plate 32 and the lower bottom plate 33 is arranged on the side plate 35, a gap is reserved between the partition plate 36 and the upper bottom plate 32 and between the partition plate 36 and the lower bottom plate 33, and an arch notch 31 is formed in the middle of the other side of the upper bottom plate 32 and the lower bottom plate 33.
The adjusting device comprises an adjusting handle 2 and a stroke adjusting frame 7, one end of the stroke adjusting frame 7 is connected with one end of the elastic body, and the adjusting handle 2 controls the stroke adjusting frame 7 to move so as to adjust the abutting position of the elastic body and the swinging frame 3. The adjustment handle 2 sets up on a lateral wall of base 1, and stroke adjustment frame 7 sets up in rocker 3, specifically: the stroke adjusting frame 7 is inserted in the gap between the partition plate 36 and the upper and lower bottom plates 32 and 33 and is limited by the partition plate 36. A drive device for moving the travel adjusting bracket 7 on the swing bracket 3 is also arranged between the adjusting handle 2 and the travel adjusting bracket 7. The drive means comprises a screw 8, a nut 71 and a second gear 81. A first gear 21 is fixed to the inner end of the adjustment handle 2. The nut 71 is fixed on the stroke adjusting frame 7, the screw rod 8 is in threaded engagement with the nut 71, and the second gear 81 is fixed at one end of the screw rod 8 and is meshed with the first gear 21. The second gear 81 is an arc gear. One end of the screw 8 is fixed to a partition plate 36. The stroke adjusting frame 7 comprises two adjusting frame side plates 72 arranged in parallel and an adjusting frame connecting plate 73 vertically connected with the two adjusting frame side plates 72, wherein a nut 71 is arranged on the adjusting frame connecting plate 73, and one end of an elastic body is arranged between the two adjusting frame side plates 72 and is hinged with the two adjusting frame side plates 72 through a hinge shaft.
The elastic body is a pressure spring 4, a telescopic guide post 5 is hinged on the stroke adjusting frame 7, one end of the telescopic guide post 5 is hinged with the stroke adjusting frame 7, the other end of the telescopic guide post 5 is hinged with the base 1, and the pressure spring 4 is sleeved on the telescopic guide post 5. The telescopic guide column 5 comprises a first sleeve 53 and a second sleeve 52 which are mutually nested, the first sleeve 53 is hinged with the stroke adjusting frame 7, the second sleeve 52 is hinged with the base 1, a stop block 54 is respectively fixed at the position of the first sleeve 53 close to the hinged end and the position of the second sleeve 52 close to the hinged end, and two ends of the pressure spring 4 are respectively abutted against the stop block 54. The two ends of the hinge shaft at the hinge joint of the telescopic guide post 5 and the stroke adjusting frame 7 are also provided with rollers 6, and the rollers 6 are propped against the arch notch 31.
The base linkage mechanism of the seat back linkage chair comprises the damping adjusting mechanism and further comprises a sliding plate 10, wherein the sliding plate 10 is connected with the other end of the swing frame 3, an arc-shaped groove is formed in the sliding plate 10, and the other end of the swing frame 3 moves in the arc-shaped groove.
The base linkage mechanism of the seat back linkage chair comprises the damping adjusting mechanism, a sliding plate 10 and a connecting frame 9, wherein one end of the connecting frame 9 is hinged with the other end of the swinging frame 3, and the other end of the connecting frame 9 is connected with the sliding plate 10.
Example 2:
the damping mechanism of the seat back linkage chair and the adjusting structure thereof shown in figures 1-11 comprise a base 1, a swinging frame 3, an elastic body and an adjusting device, wherein one end of the swinging frame 3 is hinged with the base 1, the swinging frame rotates around the hinge point, one end of the elastic body is propped against the swinging frame 3, when the other end of the swinging frame 3 rotates around the hinge point under the action of driving force, the elastic body is promoted to deform so as to form restoring force, and the abutting position of the elastic body and the swinging frame 3 is adjusted by the adjusting device so as to change the magnitude of restoring moment, and then the magnitude of driving moment is changed. The base 1 is also provided with a first hinging block 11, and one end of the swinging frame 3 is hinged on the first hinging block 11.
The base 1 is also provided with a second hinging block 12; the other end of the elastomer is hinged to the second hinge block 12.
The swing frame 3 comprises an upper bottom plate 32 and a lower bottom plate 33 which are parallel to each other, one ends of the upper bottom plate 32 and the lower bottom plate 33 are fixed through an end plate 34, a second gear 81 is fixed on the end plate 34, the middle part of one side of the upper bottom plate 32 and the middle part of one side of the lower bottom plate 33 are fixed through a side plate 35, a partition plate 36 perpendicular to the upper bottom plate 32 and the lower bottom plate 33 is arranged on the side plate 35, a gap is reserved between the partition plate 36 and the upper bottom plate 32 and between the partition plate 36 and the lower bottom plate 33, and an arch notch 31 is formed in the middle of the other side of the upper bottom plate 32 and the lower bottom plate 33.
The adjusting device comprises an adjusting handle 2 and a stroke adjusting frame 7, one end of the stroke adjusting frame 7 is connected with one end of the elastic body, and the adjusting handle 2 controls the stroke adjusting frame 7 to move so as to adjust the abutting position of the elastic body and the swinging frame 3. The adjustment handle 2 sets up on a lateral wall of base 1, and stroke adjustment frame 7 sets up in rocker 3, specifically: the stroke adjusting frame 7 is inserted in the gap between the partition plate 36 and the upper and lower bottom plates 32 and 33 and is limited by the partition plate 36. A drive device for moving the travel adjusting bracket 7 on the swing bracket 3 is also arranged between the adjusting handle 2 and the travel adjusting bracket 7. The drive means comprises a screw 8, a nut 71 and a second gear 81. A first gear 21 is fixed to the inner end of the adjustment handle 2. The nut 71 is fixed on the stroke adjusting frame 7, the screw rod 8 is in threaded engagement with the nut 71, and the second gear 81 is fixed at one end of the screw rod 8 and is meshed with the first gear 21. The second gear 81 is an arc gear. One end of the screw 8 is fixed to a partition plate 36. The stroke adjusting frame 7 comprises two adjusting frame side plates 72 arranged in parallel and an adjusting frame connecting plate 73 vertically connected with the two adjusting frame side plates 72, wherein a nut 71 is arranged on the adjusting frame connecting plate 73, and one end of an elastic body is arranged between the two adjusting frame side plates 72 and is hinged with the two adjusting frame side plates 72 through a hinge shaft.
The elastic body is a telescopic guide column 5, the telescopic guide column 5 comprises a first sleeve 53 and a second sleeve 52 which are mutually nested, a spring is arranged in the telescopic guide column 5, and two ends of the spring are respectively propped against the inner end surfaces of the first sleeve 53 and the second sleeve 52; one end of the telescopic guide post 5 is hinged with the stroke adjusting frame 7, and the other end of the telescopic guide post is hinged with the base 1.
The base linkage mechanism of the seat back linkage chair comprises the damping adjusting mechanism and further comprises a sliding plate 10, wherein the sliding plate 10 is connected with the other end of the swing frame 3, an arc-shaped groove is formed in the sliding plate 10, and the other end of the swing frame 3 moves in the arc-shaped groove.
The base linkage mechanism of the seat back linkage chair comprises the damping adjusting mechanism, a sliding plate 10 and a connecting frame 9, wherein one end of the connecting frame 9 is hinged with the other end of the swinging frame 3, and the other end of the connecting frame 9 is connected with the sliding plate 10.
It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the invention are possible. Any simple modification, equivalent variation and modification of the above embodiments according to the principles of the present invention should be considered to fall within the scope of the present invention.
Claims (7)
1. The adjusting structure of the seat back linkage chair damping mechanism is characterized by comprising a base (1), a swing frame (3), an elastic body and an adjusting device, wherein one end of the swing frame (3) is hinged with the base (1) and the swing frame (3) rotates around the hinged point, and the adjusting device comprises an adjusting handle (2), a stroke adjusting frame (7) and a driving device for changing the position of the stroke adjusting frame (7); a first gear (21) is arranged at the inner end of the adjusting handle (2); the driving device comprises a screw rod (8), a nut (71) and a second gear (81), wherein the nut (71) is fixed on the stroke adjusting frame (7), the screw rod (8) is in threaded fit with the nut (71), and the second gear (81) is fixed at one end of the screw rod (8) and meshed with the first gear (21); the second gear (81) adopts an arc gear; the driving device and the stroke adjusting frame (7) are arranged in the swinging frame (3) and synchronously swing along with the swinging frame (3), and one end of the elastic body is abutted with the swinging frame (3) and connected with the stroke adjusting frame (7); the swing frame (3) comprises an upper bottom plate (32) and a lower bottom plate (33) which are parallel to each other, one ends of the upper bottom plate (32) and the lower bottom plate (33) are fixed through an end plate (34), a second gear (81) is fixed on the end plate (34), the middle part of one side of the upper bottom plate (32) and the middle part of one side of the lower bottom plate (33) are fixed through a side plate (35), a partition plate (36) perpendicular to the upper bottom plate (32) and the lower bottom plate (33) is arranged on the side plate (35), and a gap is reserved between the partition plate (36) and the upper bottom plate (32) and the lower bottom plate (33); the stroke adjusting frame (7) is inserted in a gap between the partition plate (36) and the upper bottom plate (32) and the lower bottom plate (33), and is limited by the partition plate (36).
2. The structure according to claim 1, wherein the travel adjusting frame (7) comprises two adjusting frame side plates (72) arranged in parallel and an adjusting frame connecting plate (73) vertically connected with the two adjusting frame side plates (72), the nut (71) is arranged on the adjusting frame connecting plate (73), and one end of the elastic body is arranged between the two adjusting frame side plates (72) and is hinged with the two adjusting frame side plates (72) through a hinge shaft.
3. The adjusting structure of the seat back linkage chair damping mechanism according to claim 1, wherein the elastic body comprises a pressure spring (4) and a telescopic guide post (5), one end of the telescopic guide post (5) is hinged with a stroke adjusting frame (7), the other end of the telescopic guide post (5) is hinged with the base (1), and the pressure spring (4) is sleeved on the telescopic guide post (5).
4. The structure for adjusting the damping mechanism of the seat back linkage chair according to claim 3, wherein the telescopic guide column (5) comprises a first sleeve (53) and a second sleeve (52) which are mutually nested, the first sleeve (53) is hinged with the stroke adjusting frame (7), the second sleeve (52) is hinged with the base (1), a stop block (54) is respectively fixed at a position, close to the hinged end, of the first sleeve (53) and a position, close to the hinged end, of the second sleeve (52), and two ends of the pressure spring (4) are respectively abutted against the stop block (54).
5. The adjusting structure of the seat back linkage chair damping mechanism according to claim 3, wherein an arch notch (31) is formed in the middle of the swing frame (3), rollers (6) are further arranged at two ends of a hinge shaft at the hinge position of the telescopic guide post (5) and the stroke adjusting frame (7), and the rollers (6) are propped against the arch notch (31).
6. The adjusting structure of the seat back linkage chair damping mechanism according to claim 1, wherein the base (1) is further provided with a first hinge block (11), and one end of the swing frame (3) is hinged on the first hinge block (11).
7. The adjusting structure of the seat back linkage chair damping mechanism according to claim 1, wherein the base (1) is further provided with a second hinge block (12), and the other end of the elastic body is hinged on the second hinge block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738326.3A CN106419239B (en) | 2016-08-27 | 2016-08-27 | Adjusting structure of seat back linkage chair damping mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738326.3A CN106419239B (en) | 2016-08-27 | 2016-08-27 | Adjusting structure of seat back linkage chair damping mechanism |
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| Publication Number | Publication Date |
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| CN106419239A CN106419239A (en) | 2017-02-22 |
| CN106419239B true CN106419239B (en) | 2023-12-26 |
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| CN201610738326.3A Active CN106419239B (en) | 2016-08-27 | 2016-08-27 | Adjusting structure of seat back linkage chair damping mechanism |
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| CN112403878A (en) * | 2020-11-01 | 2021-02-26 | 爱可道生物科技有限公司 | Rolling type artichoke screening device based on gravity of conical seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977644A (en) * | 1973-06-25 | 1976-08-31 | Gebr. Isringhausen | Seat construction |
| US4640488A (en) * | 1985-01-09 | 1987-02-03 | Tachikawa Spring Co., Ltd. | Seat suspension |
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| CN203378783U (en) * | 2013-03-18 | 2014-01-08 | 佛山高飞模家具配件有限公司 | Self-weight base plate for pushing seat part through back part of chair |
| CN104939560A (en) * | 2015-03-26 | 2015-09-30 | 浙江永艺家具股份有限公司 | Damping adjusting device for chair seat of seat-back linkage chair |
| WO2016124328A1 (en) * | 2015-02-03 | 2016-08-11 | Bock 1 Gmbh & Co. Kg | Synchronized mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102005020237B3 (en) * | 2005-04-28 | 2006-08-17 | Bock 1 Gmbh & Co. Kg | Synchronous mechanism e.g. for correlated seat backrest movement of office chair, is connected to chair column base carrier, seat support and backrest carrier with tiltable backrest carrier arranged around transverse axis |
| DE202005010097U1 (en) * | 2005-06-26 | 2006-11-09 | Bock 1 Gmbh & Co. Kg | Synchronous mechanism for the seat-backrest movement of an office chair comprises a base support placed on a chair column, a seat support and a backrest support |
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| US3977644A (en) * | 1973-06-25 | 1976-08-31 | Gebr. Isringhausen | Seat construction |
| US4640488A (en) * | 1985-01-09 | 1987-02-03 | Tachikawa Spring Co., Ltd. | Seat suspension |
| US4758045A (en) * | 1986-03-15 | 1988-07-19 | Drabert Sohne Gmbh & Co. | Seat furniture |
| JPH07177944A (en) * | 1993-12-22 | 1995-07-18 | Itoki Crebio Corp | Reclining device for chair |
| CN1190564A (en) * | 1996-10-14 | 1998-08-19 | 普洛托尼德公司 | Chair mechanism and pad coverings |
| JP2010252893A (en) * | 2009-04-22 | 2010-11-11 | Okamura Corp | Chair |
| CN203378783U (en) * | 2013-03-18 | 2014-01-08 | 佛山高飞模家具配件有限公司 | Self-weight base plate for pushing seat part through back part of chair |
| WO2016124328A1 (en) * | 2015-02-03 | 2016-08-11 | Bock 1 Gmbh & Co. Kg | Synchronized mechanism |
| CN104939560A (en) * | 2015-03-26 | 2015-09-30 | 浙江永艺家具股份有限公司 | Damping adjusting device for chair seat of seat-back linkage chair |
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| Publication number | Publication date |
|---|---|
| CN106419239A (en) | 2017-02-22 |
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