CN2529562Y - Chair with adjustable lean angle - Google Patents

Abstract

The utility model relates to a chair with adjustable lean angle, comprising a chair assembly with a left and a right support, a back rest which is pivoted between the two side supports in a L-shaped, a seat support, and a regulation mechanism which can support the seat support and change the angle of the rest back and the seat support. The chair assembly is also provided with a connecting piece which is fixedly connected with the two side supports and is below the seat support. The regulation mechanism includes a hollow pipe, a torque spring, an inserted rod and a dragging component. The hollow pipe stretches forwardly and is connected with the connecting piece. The torque spring is axially positioned in the front end of the hollow pipe, and the two ends of the torque spring radially protrude two supporting sections from the hollow pipe. The inserted rod is closely locked in the hollow pipe, and the front end of the inserted rod is outside the hollow pipe and is pivoted with the bottom of the seat support. And the dragging component is used for twisting the two supporting sections to force the torque spring to release the inserted rod, thus, the seat support can move around, and then the angle between the seat support and the back rest is changed.

Description

The chair tool of adjustable leaning angle

[technical field]

The utility model relates to a kind of chair tool, particularly relates to the chair tool that angle can adjust between a kind of seat support for the human body seating, the chair back.

[background technology]

General chair tool for the human body seating, often the difference with function has dissimilar designs, for example have with meet design that ergonomics is the requirement emphasis, have with light and handy easy for the design that requires, also have the design of attaching most importance to for the angle angle of human body seating between the seat support and the chair back adjusting.

Can adjust the chair tool structure of leaning angle between seat support, the chair back in the past, on the whole be to have seat support that a level sets up, to be installed in the chair back above the rearward end of this seat support with predetermined adjustable included angle wholely, and the two left and right sides that are installed in this seat support and the chair back respectively are used for standing in a ground bogie side frame, and each bogie side frame has a side that is installed in this seat support and is used for standing on a ground supporter, and an armrest body that is installed in a top of this supporter.And the seat support of this type of chair tool, the chair back have the whole structure design of adjustable included angle, nearly all be along its length direction locking one lengthy motion picture shape iron plate in addition for a long time in the bottom of each armrest body, be used for that top for supporter is pivoted and can before and after adjust displacement, seldom see breakthrough design.

[utility model content]

The purpose of this utility model is to provide a kind of adjustable leaning angle and the very special chair tool of adjustment mode.

The chair tool of the adjustable leaning angle of the utility model includes a chair frame group body, one in front and one in back is assembled in a chair back and a seat support on this chair frame group body with predetermined angle, and one is used for supporting the guiding mechanism that this seat support also can change the leaning angle between the chair back and seat support; This chair frame group body includes chair frame on, and chair frame has two side frame body that the first from left right septum is provided with on this, and a connector that is fixed between this two side frame body bottom; This chair back erectly is journaled between the rear, upper end of this two side frame body with the nearly middle part of its dual-side; This seat support flatly is journaled into a bottom of this chair back with the one rearward end; Be characterized in: this guiding mechanism is to be installed in this seat support below, includes a hollow tube, a torque spring, an inserted link and a drawing assembly.This hollow tube is to be fixed in this connector and to extend forward, has one and is positioned at the one leading section and runs through the perforation of its tube wall.This torque spring has the coiling section of a pre-fixing turn of coiling and radius, and two respectively by two terminal sections of supporting toward the outer radials extension of this coilings section, the perforation of this hollow tube of this coiling Duan Shenjing and the axle be contained in the hollow tube, this two section of supporting is that correspondence passes this perforation, and respectively by the front and back ends place of axial limiting in this perforation, when the simultaneously stressed past coiling direction in contrast to this coiling section of this two section of supporting reversed relatively, this coiling section was made radius enlarge by twisting; But this inserted link axial stretching is plugged in this hollow tube with displacement, and passes the coiling section of this torque spring and by tight Shu Dingwei, and a leading section of inserted link passes the leading section bottom surface that this hollow tube and pivot dress are supported on this seat support; This drawing assembly is used for this two section of supporting of operation driving toward reversing relatively in contrast to coiling direction.

Adopt such scheme, when this drawing assembly of operation drives this two section of supporting, this coiling section radius is enlarged and when removing tight bundle power to this inserted link, but the displacement before and after the inserted link bearing of trend of this this inserted link of seat support interlock, and change leaning angle between the seat support and the chair back.

[description of drawings]

Be elaborated below by preferred embodiment and accompanying drawing chair tool to the adjustable leaning angle of the utility model, in the accompanying drawing:

Fig. 1 is a face upwarding stereogram, and an embodiment of the utility model chair tool is described;

Fig. 2 is the lateral plan of this embodiment;

Fig. 3 is the sectional perspective enlarged drawing of a guiding mechanism among Fig. 1;

Fig. 4 is the side cutaway view of this guiding mechanism among Fig. 3;

Fig. 5 is the positive side cutaway view of this guiding mechanism among Fig. 3, illustrates that an inserted link is by the tight Shu Dingwei of a torque spring;

Fig. 6 one is similar to the view of Fig. 5, and the radius that this torque spring is described enlarges and unclamps this inserted link;

Fig. 7 is the face upwarding section of the drawing assembly among Fig. 1;

Fig. 8 one is similar to the view of Fig. 2, and the state after a seat support is passed forward is described.

[specific embodiment]

As shown in Figures 1 and 2, one embodiment of the utility model chair tool includes a chair frame group body 1, one in front and one in back is assembled in a chair back 4 and a seat support 5 on this chair frame group body 1 with predetermined angle, and one is used for supporting the guiding mechanism 6 that this seat support 5 also can change the leaning angle of 5 of the chair back 4 and seat supports.

This chair frame group body 1 has a following chair frame 2 that is used for standing on ground, and a last chair frame 3 that rotatably is built up on this time chair frame 2.The structure of whole chair frame group body 1 for example also can not established this time chair frame 2, and directly stand on the ground with chair frame 2 on this not as limit.This time chair frame 2 has a base 21 that stands on ground, and one uprightly is arranged on these base 21 central authorities and the axle sleeve 22 of projection up.

Should go up two upstanding side support bodys 31, that chair frame 3 has the first from left right septum setting and be fixed in the rectangular-shaped skeleton frame 33 that elongated rod shape connector 32, between a bottom of this two side frame body 31 is consolidated in a middle position rear side of this connector 32, and one be fixed in this skeleton frame 33 and the upright axostylus axostyle 34 of projection down, this axostylus axostyle 34 rotatably is inserted in the axle sleeve 22 of this time chair frame 2, and making on the whole, chair frame 3 rotatably is built up in down on the chair frame 2.The shape of this two lateral body 31 can have bigger variability, be not provided with at whole chair frame group body 1 under the situation of aforementioned chair frame 3 down, can be corresponding and stand on the ground by the variation that this two side frame body 31 is made suitable shape, each side frame body 31 in the present embodiment is to consist of example with the upper and lower hack lever 311,312 by affixed one to explain.This time hack lever 311 is slightly fixed with its bottom and this connector 32 obliquely forward, and hack lever 312 is to be fixed in this time hack lever 311 tops with the one leading section on this, and arcuation extends backward, can provide seating person's hand to support, help on it.

This chair back 4 is erectly with both sides, the nearly middle part of one, is journaled on the rearward end of last hack lever 312 of this two side frame body 31 by one first support body 41 respectively.

This seat support 5 borrows one second support body 51 to be journaled into a bottom of this chair back 4 respectively flatly with one rearward end both sides.

This guiding mechanism 6 is installed in this seat support 5 belows, includes a hollow tube 61, a torque spring 62, an inserted link 63 and a drawing assembly 64.

Cooperate shown in Fig. 3,4, this hollow tube 61 is connector 32 central authorities that are fixed in chair frame 3 on this toward the front upper place with extending, this hollow tube 61 has a tube body 611 and two fixed interval and is inserted into lining 612 in this tube body 611, this tube body 611 has one and is positioned at the one leading section and runs through the rectangle perforation 613 of its tube wall, and making this perforation 613 offer the position is between 612 of this two linings.

This torque spring 62 has the coiling section 621 of a pre-fixing turn of coiling and radius, and two respectively by two terminal sections of supporting 622 toward the outer radials extension of this coilings section 621,623, this coiling section 621 stretches into by the perforation 613 of this tube body 611 and axle is contained in the tube body 611, this two section of supporting 622,623 correspondences pass this perforation 613, and respectively by axial limiting in this perforation 613 before, rear end, before present embodiment makes aforementioned two linings 612 extend in this perforation 613 in the design, rear end makes this two section of supporting 622,623 stopped and axial limiting by this two lining 612.

But these inserted link 63 axial stretchings are plugged in the tube body 611 of this hollow tube 61 with displacement, and pass described lining 612 and this torque spring 62, and by the coiling section 621 tight Shu Dingwei of torque spring 62, and a leading section of inserted link 63 is to pass this hollow tube 61 and with dashed forward 52 in a pair of pivot ear established of the leading section bottom surface that one the 3rd support body 631 is journaled into this seat support 5, and can provide seat support 5 support forces.

As seen from Figure 5, in inserted link 63 is plugged in the coiling section 621 of this torque spring 62, and two sections of supporting 622,623 are during driver under stress, and this coiling section 621 is tightly restrainted in inserted link 63, make the inserted link 63 can't be with respect to hollow tube 61 axial stretching displacements.And when these two sections of supporting, 622,623 stressed past coiling directions in contrast to this coiling section 621 reverse relatively, to twist this coiling section 621 enlarges its radius, become state as shown in Figure 6, the internal diameter of the section 621 of reeling this moment is obviously greater than inserted link 63 external diameters, but in these state lower plunger 63 axial displacement starts, as for the running of reversing of this two section of supporting 622,623, be to realize by the driving of aforementioned drawing assembly 64.

This drawing assembly 64 mainly is to drive two sections of supporting 622,623 of this torque spring 62 toward reversing relatively in contrast to coiling direction in order to be used for, the structure design that can realize this effect is a lot of, general seeing as bicycle, locomotive, perambulator, wheelchair ... in brake assemblies with brake gear.

As shown in Figure 1, the drawing assembly 64 of present embodiment has: a holder 65, a sleeve pipe 66, leader 67, and a drag-line 68.

Cooperate shown in Fig. 6,7, this holder 65 is to be packed in aforementioned seat support 5 bottoms.One inner end 661 of this sleeve pipe 66 is to be cemented in this holder 65 edges, one outer end 662 (being found in Fig. 1 and Fig. 6) is resisted against the section of supporting 623 of aforementioned torsion spring 62, that is to say the inside and outside end the 661, the 662nd of sleeve pipe 66, is resisted against 623 of the holder 65 and the sections of supporting respectively limitedly.

This handle 67 is to be fixed on fastenedly on this holder 65 with one the 4th support body 671, and installing the time is to make an outer end of handle 67 protrude seat support 5 outsides, pulls to make things convenient for seating person to operate floppily with hand.

This drag-line 68 is that two ends are located in this sleeve pipe 66 highlightedly, after one inner end 681 passes the inner end 661 of sleeve pipe 66, is fixed on a proximal edge position of this handle 67 with can being subjected to drawing.After one outer end 682 of this drag-line 68 passes the outer end 662 of sleeve pipe 66, can draw two sections of supporting 622,623 that are bound up on this torque spring 62 with holding, the bind mode of this outer end 682 and two sections of supporting 622,623, be by curved respectively coiled one spacing collar 624,625 of an end of this two section of supporting 622,623, make this outer end 682 successively pass spacing collar 625,624, and then in terminal locking one nut body 683 of this outer end 682, and these nut body 683 volumes can't pass through spacing collar 624 greatly.

Like this, when driving this drag-line 68 of drawing when the handle 67 of operating this drawing assembly 64, to be shown in Figure 6 as described above, produce to be equal to by the outer end 662 of this nut body 683 and this sleeve pipe 66 and push this two section of supporting 622 in opposite directions, 623 effect, make this two section of supporting 623,624 produce the running of reversing relatively toward in contrast to this coilings section 621 coiling directions because of stressed, radius of section 621 will enlarge and removed tight Shu Li to this inserted link 63 so should reel, be sitting in the seating person on the chair tool this moment, pass the seat support 5 that supported by this inserted link 63 before and after can taking advantage of a situation, seat support 5 just can be along displacement before and after the bearing of trend of this inserted link 63, during seat support 5 front and back displacements, the bottom that will drive the chair back 4 forward, back displacement, making the whole chair back 4 serves as that axle is made pivot pendulum with first support body 41, thereby changes the leaning angle of 5 of the chair back 4 and seat supports.Be the state after seat support 5 displacement forward as shown in Figure 8, and be provided with because the hollow tube 61 of this guiding mechanism 6 is to be fixed in obliquely up on this connector 32, therefore when the leading section of seat support 5 is passed forward, with respect to the chair back 4 is slightly toward upwarping, and the interlock chair back 4 makes the one upper end swing toward the back lower place, therefore whole seat support 5 and the leaning angle that the chair back 4 is constituted more can possess to have and can allow the comfortable backward special-effect of lying of facing upward of seating person.

In addition when the drawing gravitation removed drag-line 68, whole torque spring 62 can be borrowed the reverse elastic force of being put aside by twisting, and returns back to the state of tight bundle inserted link 63 location, and while handle 67 also can be resetted by interlock.

Take a broad view of above-mentioned, because present embodiment is adjusted the function mode and structure design of leaning angle about guiding mechanism 6, be to provide the function that grasps the location by its torque spring 62, and guide the direction of displacement of the seat support 5 and the chair back 4 by hollow tube 61 and inserted link 63, in addition, slightly upwarped by guiding, and seating person can be provided the comfortable backward special-effect of lying of facing upward.

Claims (6)

1, a kind of chair tool of adjustable leaning angle includes a chair frame group body, one in front and one in back is assembled in a chair back and a seat support on this chair frame group body with predetermined angle, and one is used for supporting the guiding mechanism that this seat support also can change the leaning angle between the chair back and seat support; This chair frame group body includes chair frame on, and chair frame has two side frame body that the first from left right septum is provided with on this, and a connector that is fixed between this two side frame body bottom; This chair back erectly is journaled between the rear, upper end of this two side frame body with the nearly middle part of its dual-side; This seat support flatly is journaled into a bottom of this chair back with the one rearward end, it is characterized in that:

This guiding mechanism is installed in this seat support below, includes a hollow tube, a torque spring, an inserted link and a drawing assembly;

This hollow tube is fixed in this connector and extends forward, has one and is positioned at the one leading section and runs through the perforation of its tube wall;

This torque spring, coiling section with a pre-fixing turn of coiling and radius, and two respectively by two terminal sections of supporting toward the outer radials extension of this coilings section, the perforation of this hollow tube of this coiling Duan Shenjing and the axle be contained in the hollow tube, this two sections of supporting correspondence passes this perforation, and respectively by the front and back ends place of axial limiting in this perforation, when the simultaneously stressed past coiling direction in contrast to this coiling section of this two section of supporting reversed relatively, this coiling section was twisted and is made radius to enlarge;

This inserted link, but axial stretching be plugged in displacement in this hollow tube, and pass the coiling section of this torque spring and by tight Shu Dingwei, and a leading section of inserted link passes the leading section bottom surface that this hollow tube and pivot dress are supported on this seat support;

This drawing assembly is used for this two section of supporting of operation driving toward reversing relatively in contrast to coiling direction.

2, the chair tool of adjustable leaning angle according to claim 1 is characterized in that: this hollow tube has a tube body and two fixed interval and is inserted into lining in this tube body, and this perforation is opened on this tube body and between between this two lining.

3, as the chair tool of adjustable leaning angle as described in the claim 2, it is characterized in that: two sections of supporting of this torque spring are subjected to this two lining axially to stop spacing respectively.

4, the chair tool of adjustable leaning angle according to claim 1, it is characterized in that: this chair frame group body also includes chair frame, and this time chair frame has one and is used for standing on ground base and and uprightly is arranged on these base central authorities and the axle sleeve of projection up; The last chair frame of this chair frame group body also has a upright axostylus axostyle that is consolidated in these connector central authorities, and this axostylus axostyle rotatably is inserted in the axle sleeve of this time chair frame.

5, the chair tool of adjustable leaning angle according to claim 1 is characterized in that this drawing assembly has:

One holder is packed in this seat bottom;

One sleeve pipe, its inside and outside end be limited in respectively this holder and this torque spring wherein one support intersegmental;

The leader is fixed on this holder fastenedly;

One drag-line, be located in this sleeve pipe, one inner end of this drag-line passes sleeve pipe and being fixed on this handle with can being subjected to drawing, and an outer end of this drag-line passes sleeve pipe and when being subjected to drawing, twists two sections of supporting of this torque spring in opposite directions and enlarges this coiling section radius.

6, the chair tool of adjustable leaning angle according to claim 1, it is characterized in that: the hollow tube of this guiding mechanism is fixed on this connector up obliquely.

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