CN201005296Y - Adjustable chair linkage mechanism - Google Patents

Abstract

The utility model discloses a seat interlock mechanism with adjustable includes a base, and this base rear is equipped with a back frame, and the place ahead is equipped with one and leans on the foot rest, and both sides respectively are equipped with a handrail frame, and are equipped with a seat frame on this base upper portion, and this base is in the pivot of the neighbouring place ahead department in upper portion and is established a power component. A link assembly pivotally connects the members and is driven by the power assembly to cause the relative positions of the members to change. The backrest frame, the chair seat frame and the backrest foot frame of the utility model can be a straight line, so that the rider can have a sufficient rest and feel comfortable. The chair seat frame is linked with the backrest frame, and when the backrest frame is inclined from a horizontal state to a leaning state, the chair seat frame moves forwards, so that the spine of a human body can be prevented from being injured. The armrest frame is linked with the backrest frame by tilting, so that the rider can still lean two hands against the armrest frame, and when the rider wants to stand, the rider can obtain a supporting force by means of the armrest frame.

Description

Adjustable seat linkage mechanism

technical field

The utility model relates to an adjustable seat that can completely lie flat, in particular to an adjustable seat linkage mechanism.

Background technique

Referring to FIG. 17 , it is a schematic diagram of an adjustable office chair in the prior art. Its structure includes: two groups of identical linkage mechanisms are arranged on the top of a seat base 91, mainly including a first link group 92, a second link group 93 and a third link group 94, and are respectively connected with The foot pads 95, seat cushions 96 and back cushions 97 arranged in the upper area are connected, and the connecting rod groups are mutually pulled, and each part can move relative to each other during linkage; the seat pad 96 is formed by the aforementioned second connecting rod group 93 It is connected with the seat base 1; the foot pad 95 is connected with the bottom of the seat cushion 96 by the first connecting rod group 92; the back cushion 97 is connected with the seat base 91 by the aforementioned third connecting rod group 94 And cushion 96 is connected.

Although the existing seat can adjust the angle of the back cushion and the seat cushion, its inclination angle is limited to a certain extent, and the back cushion and the seat cushion cannot be positioned in a straight line, so that the function of the seat is limited to sitting but not lying down. Many people have the habit of taking a nap during the day, but due to various reasons, they cannot lie in bed and sleep comfortably. Therefore, if the chair that usually sits, the back of the chair and the back cushion can lie flat completely, which will make the rester obtain a quite comfortable feeling, and can fully relax and enter the sleep state. Sleep focuses on quality, and sleeping for a long time is not as good as sleeping well.

new content

The purpose of the utility model is to provide an adjustable seat linkage structure in which the backrest frame, the seat frame and the footrest can form a straight line.

For realizing above-mentioned utility model purpose, the utility model has adopted following technical scheme:

The adjustable seat interlocking structure includes a base with a limit piece on both sides; a backrest frame pivotally arranged behind the base; a seat frame with a guide piece on both sides. The guide part is movably arranged on the limiting part, so that the seat frame can move relative to the base; a power assembly, one end is set on the base, and the other end is set on the backrest frame; a connecting rod The component includes a first backrest connecting rod, one end is pivotally arranged on the backrest frame, the other end is pivotally arranged on a seat connecting rod, and the other end of the seat connecting rod is pivotally arranged on the seat frame.

The back frame is driven by the power assembly, when the power assembly is implemented in the first state, the back frame is in an upright state; when the power assembly is implemented in the second state, the power assembly pulls the back frame, and the back frame is horizontal In this state, the first backrest link pivots toward the seat frame, so that the seat link slides the seat frame against the guide member to the limiter, so that the seat frame slides toward the backrest frame, Make this backrest frame and this seat frame be in line.

The backrest frame, the seat frame and the footrest of the utility model can form a straight line, so that the occupants can get sufficient rest and feel comfortable. The seat frame is linked with the backrest frame, and when the backrest frame is from a horizontal state to a reclined state, the seat frame will move forward, which can prevent human spine from being injured. The armrest frame is linked with the reclining of the backrest frame, so that the occupant can still lean his hands on the armrest frame, and when he wants to stand up, he can also rely on the armrest frame to get a support.

Description of drawings

Fig. 1: is the three-dimensional appearance view of the first embodiment of the utility model.

Fig. 2: is the front view of the first embodiment of the utility model.

Fig. 3 is a schematic diagram of the first embodiment of the present invention, showing that the adjustable seat is in an upright state.

Fig. 4: is a schematic diagram of the first embodiment of the present invention, showing that the adjustable seat is in a reclining state.

Fig. 5: is a schematic diagram of the first embodiment of the utility model, showing that the adjustable seat is in a horizontal state.

Fig. 6: is the three-dimensional appearance view of the second embodiment of the utility model.

Fig. 7 is a schematic diagram of the second embodiment of the present invention, showing that the adjustable seat is in an upright state.

Fig. 8 is a schematic diagram of the second embodiment of the present invention, showing that the adjustable seat is in a horizontal state.

Fig. 9 is a three-dimensional appearance view of the third embodiment of the present invention.

Fig. 10 is a schematic diagram of the third embodiment of the present invention, showing that the adjustable seat is in an upright state.

Fig. 11 is a schematic diagram of the third embodiment of the present invention, showing that the adjustable chair is in a horizontal state.

Fig. 12: is the three-dimensional appearance view of the fourth embodiment of the present utility model.

Fig. 13 is a schematic view of the fourth embodiment of the present invention, showing that the adjustable seat is in an upright state.

Fig. 14 is a schematic diagram of the fourth embodiment of the present invention, showing that the adjustable seat is in a horizontal state.

Fig. 15 is a schematic diagram of the fifth embodiment of the present invention, showing that the adjustable seat is in an upright state.

Fig. 16 is a schematic diagram of the fifth embodiment of the present invention, showing that the pressure relief chair is in a horizontal state.

Figure 17: A schematic diagram of an existing adjustable office chair.

[Description of main component symbols]

(current technology)

91 Seat Base 92 First Link Group 93 Second Link Group

94 The third link group 95 Foot pad 96 Seat cushion 97 Back cushion

(this utility model)

1 Compression chair 10 Base 11 Limiting piece 11b Limiting piece

12b Upright bar 20 Backrest frame 21 Backrest end 22 Pivot end

30 Footrest 40 Armrest 50 Chair Frame 51 Guide

51b guide piece 52e linkage piece 60 power assembly 60d power assembly

70 Linkage assembly 71 First backrest link 72 Seat link 73 Second backrest link

74 Base link 75 Footrest link 76 Armrest link 71b First backrest link

72b Seat link 721b Pivot hole 73b Second backrest link

77c Wheel Disc 771c First Pivot Hole 772c Second Pivot Hole

77d Wheel disc 771d First pivot hole 772d Second pivot hole

Detailed ways

Referring to Figures 1-3, it is a three-dimensional appearance view, a top view and a side view of the first embodiment of the adjustable seat linkage mechanism of the present invention. The adjustable seat 1 of the present utility model includes a base 10, a backrest frame 20 is provided at the rear of the base 10, a footrest 30 is provided at the front, and an armrest frame 40 is provided on both sides, and on the top of the base 10 A seat frame 50 is provided, and a power assembly 60 is pivotally mounted on the upper part of the base 10 near the front. A link assembly 70 pivotally connects the above-mentioned components, and is driven by the power assembly 60 to change the relative positions of the above-mentioned components.

Both sides of the base 10 are respectively provided with a stopper 11 in the shape of a U-shaped guide groove, and the end of the seat frame 50 is pivotally connected with a guide 51 in a U-shaped structure, so that the guide 51 can slide Slidingly set on the limiting member 11 in a way.

The first end of the back frame 20 is a back end 21 , and the second end is a pivot end 22 , so that the back frame 20 is L-shaped. The power assembly 60 is preferably an electric screw, and the other end of the power assembly 60 is pivoted to the pivot end 22 of the back frame 20 . Two sides of the pivot end 22 are pivotally disposed on two sides behind the upper part of the base 10 . A first backrest link 71 is pivotally arranged on both sides of the end of the pivotal end 22, and the first backrest link 71 is pivotally connected to a seat link 72. The center point of the seat link 72 is pivotally arranged on the seat The upper part of the side of the base 10 takes the central point as the fulcrum. The back frame 20 is pivotally provided with a second backrest link 73 in the middle of the two first backrest links 71, and the second backrest link 73 is pivotally arranged at the central point of a base link 74, and the pivot joint is used as As a fulcrum, one end of the base link 74 is pivotally arranged in front of the bottom of the base 10 , and the other end is pivotally connected to a footrest link 75 , and the footrest link 75 is also pivotally connected to the footrest 30 .

The armrest frame 40 is pivotally arranged above the two sides of the base 10 . The armrest frame 40 is pivotally connected to an armrest link 76 at the middle section. place.

3-5 are action diagrams of the first embodiment of the present utility model. The utility model drives the power assembly 60 to change the relative positions of the backrest frame 20 , the footrest frame 30 , the armrest frame 40 and the seat frame 50 . The power assembly 60 can adjust and control the reclining angle of the adjustable seat 1 in a multi-stage manner. When the power assembly 60 is in the first state (as shown in FIG. 3 ), the backrest frame 20 is in an upright state at the first position, and the front end of the seat frame 50 is slightly tilted upward through the link assembly 70 . The schematic diagram of the power assembly 60 from the first state to the second state (as shown in FIG. 4 ), when the power assembly 60 is implemented in the second state (as shown in FIG. 5 ), the power assembly 60 pulls the backrest frame 20 The pivoting end 22 makes the first backrest connecting rod 71 pivot toward the seat frame 50, so that the seat connecting rod 72 slides the seat frame 50 on the limiter 11 by relying on the guide member 51, so that The seat frame 50 slides toward the backrest end 21 . The seat frame 50 drives the armrest link 76 and the armrest frame 40 to pivot toward the backrest end 21 . Simultaneously, the second backrest link 73 also pivots toward the seat frame 50, so that the base link 74 and the footrest link 75 are in a straight line, and the footrest 30 is moved from the upright position to the horizontal position. At this moment, the backrest frame 20, the seat frame 50 and the footrest frame 30 are just in a straight line.

Referring to Fig. 6-8, it is a schematic view of the second embodiment of the present utility model. The main parts and implementation methods of this embodiment are the same as those of the first embodiment, and will not be described in detail here. Both sides of the base 10 are respectively provided with a limit member 11b of a slideway structure composed of a plane and a ramp, and the two sides of the seat frame 50 are pivotally provided with two roller-type guide members 51b, The guiding part 51b is moved between the limiting parts 11b in a rolling manner.

The backrest frame 20 is pivotally provided with a first backrest connecting rod 71b at the end of the pivoting end 22, and the first backrest connecting rod 71b is pivotally connected with a seat connecting rod 72b. The seat connecting rod 72b is approximately L-shaped, and A pivot hole 721b is provided at the turning point, so that the seat connecting rod 72b is pivotally mounted on a vertical rod 12b of the base 10 at the same time. The backrest frame 20 is respectively provided with a second backrest link 73b pivoted on both sides of the first backrest link 71b. The joint is a fulcrum. One end of the base link 74 is pivotally arranged in front of the bottom of the base 10 , and the other end is pivotally connected to a footrest link 75 , which is also pivotally connected to the footrest 30 .

When the power assembly 60 is in the first state (as shown in FIG. 7 ), the backrest frame 20 is in an upright state at the first position, and the front end of the seat frame 50 is slightly tilted upward through the link assembly 70 . When the power assembly 60 is in the second state (as shown in FIG. 8 ), the power assembly 60 pulls the pivotal end 22 of the backrest frame 20 to pivot the first backrest link 71b toward the seat frame 50 , let the seat link 72b take the vertical rod 12b of the base 10 as a fulcrum, slide the seat frame 50 on the limiter 11b through the guide 51b, and slide the seat frame 50 toward the backrest end 21 . Simultaneously, the second backrest link 73b pivots toward the footrest 30, so that the base link 74 and the footrest link 75 are in a straight line, and the footrest 30 is moved from the upright position to the horizontal position. At this moment, the backrest frame 20, the seat frame 50 and the footrest frame 30 are just in a straight line.

Referring to Fig. 9-11, it is a schematic view of the third embodiment of the present utility model. The main components and implementation methods of this embodiment are the same as those of the second embodiment, and will not be described in detail here. Only the combination of the backrest frame 20 and the seat frame 50 is different. In this embodiment, a wheel 77c is pivoted on the vertical rod 12b, and one end of the wheel 77c is provided with a first shaft formed along the axial direction. The pivot hole 771c is pivotally connected to the seat link 72, and a second pivot hole 772c formed along the circumferential direction is formed at the other end to pivotally connect to the first backrest link 71b.

Referring to Fig. 12-14, it is a schematic view of the fourth embodiment of the present utility model. The main components and implementation methods of this embodiment are the same as those of the third embodiment, and will not be described in detail here. The power assembly 60d in this embodiment is preferably a screw, and the peripheral surface of the wheel 77d is provided with teeth, and the first pivot hole 771d on the wheel 77d drives the seat frame by using the teeth to engage with the screw. 50 moves on the base 10, the second pivot hole 772d on the wheel 77d is pivotally connected to the first backrest link 71b to link the back frame 20, when the wheel 77d pivots to the first position (as shown in the figure 13), the back frame 20 is in an upright position, when the wheel 77d is pivoted to the second position (as shown in Figure 14), the base link 74 and the foot link 75 are in a straight line, and the The stand 30 is moved from an upright position to a horizontal position. At this moment, the backrest frame 20, the seat frame 50 and the footrest frame 30 are just in a straight line.

15 and 16 are schematic diagrams of a fifth embodiment of the present utility model. The main components and implementation methods of this embodiment are the same as those of the fourth embodiment, and will not be described in detail here. The power assembly 60d in this embodiment is the same as the fourth embodiment, which is a screw rod, and a linkage 52e is provided between the seat frame 50 and the seat connecting rod 72, and the linkage 52e is screwed on the screw rod at the same time. The power assembly 60d rotates the power assembly 60d of the screw, and drives the link 52e to reciprocate.

The power assembly in the utility model connects with the backrest frame, so that the backrest frame can be tilted at any angle relative to the seat frame, and drives the seat frame to move on the base, and at the same time makes the footrest rise to meet the seat frame. The frame and the backrest can be in a straight line, and the armrest frame also tilts backwards along with the backrest. The utility model enables the adjustable seat to lie flat completely, so that the occupant can completely relax and get a full rest. And when the adjustable seat is in a supine state from a horizontal position, the seat frame will move forward with the tilting of the backrest frame, which can prevent the human spine from being squeezed and prevent spinal injuries.

With regard to the above, it can be summarized that the utility model has the following advantages:

1. The backrest frame, the seat frame and the footrest of the utility model can form a straight line, so that the occupants can get sufficient rest and feel comfortable.

2. The seat frame is linked to the backrest frame. When the backrest frame is from horizontal to reclining state, the seat frame will move forward, which can prevent human spine from being injured.

3. The armrest frame is linked with the reclining of the backrest frame, so that the occupant can still lean his hands on the armrest frame, and when he wants to stand up, he can also rely on the armrest frame to get a supporting force.

Claims (15)

1. seat chair with adjustable interlinked mechanism is characterized in that it includes:

One pedestal is respectively equipped with a locating part in both sides;

One back rest is hubbed at this pedestal rear;

One chair seat frame respectively is provided with a guide member in both sides, and this guide member is located at this locating part in a movable manner, and this chair seat frame can be moved relative to this pedestal;

One Power Component, an end is located at this pedestal, and the other end is located at this back rest;

One link assembly includes one first backrest connecting rod, and an end is hubbed at this back rest, and the other end is hubbed at a seat support connecting rod, and this seat support connecting rod other end is hubbed at this chair seat frame.

2. seat chair with adjustable interlinked mechanism according to claim 1 is characterized in that, the locating part of this pedestal is U font guide groove shape, and the guide member of this chair seat frame is ㄇ word structure, and this guide member slidably is slidedly arranged on this locating part.

3. seat chair with adjustable interlinked mechanism according to claim 1 is characterized in that, this link assembly includes a wheel disc and is hubbed at this pedestal, and this wheel disc one end is pivoted with this first backrest connecting rod, the other end this seat support connecting rod that is pivoted.

4. according to claim 1 or 3 described seat chair with adjustable interlinked mechanisms, it is characterized in that the locating part of this pedestal is a slideway, the guide member of this chair seat frame is the roller type guide member.

5. seat chair with adjustable interlinked mechanism according to claim 4 is characterized in that, the slideway of this pedestal is made up of a plane and a domatic institute.

6. seat chair with adjustable interlinked mechanism according to claim 1 is characterized in that this pedestal is provided with a vertical rod, and the middle section of this seat support connecting rod is hubbed at this vertical rod.

7. seat chair with adjustable interlinked mechanism according to claim 3 is characterized in that this pedestal is provided with a vertical rod, and this wheel disc is hubbed at this vertical rod.

8. seat chair with adjustable interlinked mechanism according to claim 1 is characterized in that, this seat support linkage is L-shaped.

9. seat chair with adjustable interlinked mechanism according to claim 1 is characterized in that this back rest is L-shaped.

10. seat chair with adjustable interlinked mechanism according to claim 1, it is characterized in that, this link assembly also includes one second backrest connecting rod, a base linkage and by the pin connecting rod, this second backrest connecting rod, one end is located at this back rest, the other end is hubbed at this base linkage middle section, this base linkage one end is located at this pedestal, and the other end is located at this by the pin connecting rod, should be located at one by foot rest by the pin connecting rod.

11. seat chair with adjustable interlinked mechanism according to claim 1 is characterized in that this link assembly also includes two ribbed inserts, this ribbed insert one end is located at this chair seat frame, the other end arm-rest frame that is pivoted, and this arm-rest frame is hubbed at this pedestal.

12. seat chair with adjustable interlinked mechanism according to claim 3, it is characterized in that this wheel disc one end is provided with one first pivoted hole that forms along axis direction, articulates this seat support connecting rod, the other end is provided with one second pivoted hole that along the circumferential direction forms, and articulates this first backrest connecting rod.

13. seat chair with adjustable interlinked mechanism according to claim 3 is characterized in that, this Power Component is a screw rod.

14. seat chair with adjustable interlinked mechanism according to claim 1 is characterized in that, this wheel disc side face is provided with tooth, and with this screw engages.

15. seat chair with adjustable interlinked mechanism according to claim 13 is characterized in that this chair seat frame is provided with a moving part, join with this seat support connecting rod, and this moving part spiral shell is located at this Power Component.

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