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CN-121987039-A - Adjustable chair

CN121987039ACN 121987039 ACN121987039 ACN 121987039ACN-121987039-A

Abstract

The invention provides an adjusting chair, which comprises a chair seat, a back support, a backrest sliding mechanism, a backrest connecting rod mechanism and a driving mechanism. The back support comprises a first rail and a second rail. The first rail has a first guiding direction parallel to a length direction of the back support. The second track is arranged at intervals with the first track and is provided with a second guiding direction, and the second guiding direction is parallel to the length direction. The backrest sliding mechanism comprises a sliding component and a backrest component. The sliding component is movably arranged on the first track. The backrest component is connected with the sliding component. The back-rest linkage mechanism is connected with the back-rest assembly and guided by the second track. The driving mechanism drives the back support to rotate relative to the seat, and the back connecting rod mechanism is linked with the sliding assembly to move in the first track, so that the back assembly moves relative to the back support. Thereby improving the comfort of use.

Inventors

  • ZHENG MINGQUAN
  • ZHENG SHUNYUAN

Assignees

  • 国睦工业股份有限公司

Dates

Publication Date
20260508
Application Date
20241106

Claims (10)

  1. 1. An adjustment chair, comprising: A seat; back support, pivot locate this seat support and contain: a first rail having a first guiding direction parallel to the length direction of the back support, and The second track is arranged at intervals with the first track and is provided with a second guiding direction, and the second guiding direction is parallel to the length direction; A back slide mechanism comprising: a sliding assembly movably disposed on the first rail, and A back rest assembly connected to the sliding assembly; A back link mechanism connected to the back assembly and guided by the second rail, and A driving mechanism connected with the back bracket; The back support is driven by the driving mechanism to rotate relative to the seat, and the back connecting rod mechanism moves along the second track and drives the sliding component to move in the first track so that the back component moves relative to the back support.
  2. 2. The reclining chair of claim 1, wherein said first track comprises: Track frame, and The inner pad is arranged in the track frame; wherein, the sliding component has a rod-shaped structure to match the inner pad.
  3. 3. The chair of claim 2 wherein the track frame includes at least one detent recess and the inner pad includes at least one detent rib protruding into the at least one detent recess.
  4. 4. The reclining chair of claim 3 wherein the track frame has a metal body and the inner pad has a channel-shaped plastic body.
  5. 5. The reclining chair of claim 1 wherein the drive mechanism comprises: one end of the fixing plate is connected with the back support; A push rod connected to the other end of the fixing plate, and And the actuator is connected with and drives the push rod.
  6. 6. The reclining chair of claim 1 wherein the backrest linkage comprises: the connecting rod is pivoted with the backrest component; One end of the swing rod is pivoted to the back support, the other end of the swing rod is pivoted to the connecting rod, and the swing rod comprises at least two pivot holes; the upper end of the first sliding rod is pivoted to any one of the at least two pivot holes, and the lower end of the first sliding rod is limited by the second track; A slide seat slidably disposed on the second track and pivoted to the first slide bar, and One end of the second slide bar is pivoted with the slide seat, and the other end is pivoted with the chair seat.
  7. 7. An adjustment chair, comprising: A seat; the back support is pivoted on the seat and comprises a first track, the first track is provided with a first guiding direction parallel to the length direction of the back support, and the first track comprises: Rail frame The inner pad is arranged in the track frame and forms a guide space; A back slide mechanism comprising: a sliding component movably accommodated in the guiding space and having a rod-like structure for matching with the guiding space, and A back rest assembly connected to the sliding assembly; a back link mechanism connecting the back assembly, and A driving mechanism connected with the back bracket; The back support is driven by the driving mechanism to rotate relative to the seat, and the back connecting rod mechanism is linked with the sliding component to move in the first track, so that the back component moves relative to the back support.
  8. 8. The chair of claim 7 wherein the track frame includes at least one detent recess and the inner pad includes at least one detent rib protruding into the at least one detent recess.
  9. 9. The reclining chair of claim 8 wherein the track frame has a metal body and the inner pad has a channel-shaped plastic body.
  10. 10. The reclining chair of claim 7 wherein said drive mechanism comprises: one end of the fixing plate is connected with the back support; A push rod connected to the other end of the fixed plate, and And the actuator is connected with and drives the push rod.

Description

Adjustable chair Technical Field The present invention relates to an adjustable chair, and more particularly, to an adjustable chair with a tiltable back. Background Chairs generally comprise a seat and a back, the back being supported by the back of the person. In order to improve the comfort of use, most chairs have a chair back adjusting function, which can enable the chair back to pivot relative to the chair seat and enable the back of a human body to incline relatively. When the back of the chair is adjusted, a user can firstly erect the upper half body and then adjust the chair back, but for partial elderly or users with the body incapable of being voluntarily, the upper half body of the user is required to be supported on the chair back, so that the user can pull the back when adjusting the angle, and discomfort is generated. In view of this, it is an objective of the relevant practitioner to improve the structure of the chair to enhance the comfort of use. Disclosure of Invention The invention provides an adjusting chair, which can improve the comfort of use through structural configuration. According to one embodiment of the present invention, an adjustment chair is provided that includes a seat, a back support, a back slide mechanism, a back link mechanism, and a drive mechanism. The back support is pivoted on the seat and comprises a first track and a second track. The first rail has a first guiding direction parallel to a length direction of the back support. The second track is arranged at intervals with the first track and is provided with a second guiding direction, and the second guiding direction is parallel to the length direction. The backrest sliding mechanism comprises a sliding component and a backrest component. The sliding component is movably arranged on the first track. The backrest component is connected with the sliding component. The back-rest linkage mechanism is connected with the back-rest assembly and guided by the second track. The driving mechanism is connected with the back support. The back support is driven by the driving mechanism to rotate relative to the seat, and the back support connecting rod mechanism moves along the second track and drives the sliding assembly to move in the first track, so that the back support assembly moves relative to the back support. According to the adjustment chair of the foregoing embodiment, the first rail may include a rail frame and an inner pad, and the inner pad is disposed in the rail frame. Wherein, the sliding component is provided with a rod-shaped structure to be matched with the inner pad. According to the adjustment chair of the foregoing embodiment, the track frame may include at least one positioning groove, and the inner pad includes at least one positioning rib protruding into the at least one positioning groove. According to the adjustment chair of the previous embodiment, the track frame may have a metal body and the inner pad has a channel-shaped plastic body. According to the adjustment chair of the previous embodiment, the driving mechanism may include a fixing plate, a push rod and an actuator. One end of the fixing plate is connected to the back support. The push rod is connected with the other end of the fixed plate, and the actuator is connected with and drives the push rod. According to the adjustment chair of the foregoing embodiment, the backrest link mechanism may include a connecting rod, a swing rod, a first slide rod, a slide seat, and a second slide rod. The connecting rod is pivoted with the backrest component. One end of the swing rod is pivoted to the back support, the other end of the swing rod is pivoted to the connecting rod, and the swing rod comprises at least two pivot holes. The upper end of the first sliding rod is pivoted to any one of the at least two pivot holes, and the lower end of the first sliding rod is limited by the second track. The sliding seat is arranged on the second track in a sliding manner and pivoted with the first sliding rod. One end of the second slide bar is pivoted to the other end of the sliding seat is pivoted with the chair seat. In accordance with another embodiment of the present invention, an adjustment chair is provided that includes a seat, a back support, a back slide mechanism, a back link mechanism, and a drive mechanism. The back support is pivoted on the seat and comprises a first track, the first track is provided with a first guiding direction parallel to the length direction of the back support, and the first track comprises a track frame and an inner pad. The inner pad is arranged in the track frame and forms a guiding space. The back sliding mechanism comprises a sliding component and a back component, wherein the sliding component is movably accommodated in the guide space and is provided with a rod-shaped structure to be matched with the guide space. The backrest component is connected with the sliding component. The back-rest connecting rod mechanis