CN202477016U - double back office chair - Google Patents

Abstract

The embodiment of the utility model discloses two back of the chair office chair utensil relates to articles for daily use field, can provide the user and lean on according to the required slope of head posture and carry out the headrest adjustment to enjoy the many first posture angle adjustment functions of headrest. The utility model discloses two back of chair office chair utensil, include: the chair comprises a chair body with double chair backs and a headrest, wherein the bottom end of the headrest is provided with a combination bracket for combining with a chair back bracket arranged between a left side back plate and a right side back plate of the double chair backs; the headrest multi-element adjusting structure is arranged on the rear end face of the headrest and comprises a tilting adjusting unit, a front and back adjusting unit, a tilting adjusting unit and a lifting adjusting unit.

Description

double back office chair

technical field

The utility model relates to an office chair with double backs, in particular to an office chair with a multi-dimensional posture angle adjustment structure for the headrest.

Background technique

A general office chair with a headrest, in addition to being able to lean against the back of the user, also has the function of resting the head, so that the user can relax when he or she wants to take a rest after working for a long time. The head and neck can be leaned back to relax the tense shoulder and neck muscles; however, the headrests on most office chairs are fixed on the back of the chair and cannot be adjusted up, down, left, and right, so they cannot match the user's head. The headrest adjustment required for posture cannot provide effective head support and proper pillow function.

In view of the problems existing in the above-mentioned conventional office chair structure, how to develop a more ideal and practical innovative structure, which is eagerly awaited by consumers, is also the goal and direction that the relevant industry must work hard to develop and break through.

Utility model content

The technical problem to be solved by the embodiments of the present utility model is to provide a double-back office chair with multiple adjustment functions of the headrest; The headrest adjustment required by the user's head posture can not provide effective head support and proper pillow function. The problem is to improve and break through

The technical means for solving the problem of the double-back office chair of the present utility model mainly includes a headrest including a coupling bracket for combining with the aforementioned double-back office chair at an appropriate position; a headrest with multiple adjustment structures fixed on the The rear end surface of the headrest, wherein the multi-adjustment structure of the headrest includes a tilt adjustment unit, a front and rear adjustment unit, a tilt adjustment unit and a lift adjustment unit;

And the effect enhancement of the utility model is that the headrest can produce different adjustment functions relative to the chair body, such as up and down tilt, front and rear displacement, left and right tilt and lifting displacement, etc., so as to make the headrest The double-back office chair described in the utility model can provide the user with the headrest adjustment function according to the leaning required by the head posture, so as to enjoy the multi-position angle adjustment function of the headrest, which greatly improves the quality of the chair and the practicality of using comfort. progressive.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention For some novel embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is one of combined stereograms of the double-back office chair structure of the utility model;

Fig. 2 is the second combined perspective view of the structure of the double-back office chair of the present invention;

Fig. 3 is an exploded perspective view of the structure of the double-back office chair of the present invention;

Fig. 4 is the tilting state diagram of the double chair back office chair structure of the present utility model;

Fig. 5 is a diagram of the front and rear displacement state of the structure of the double-back office chair of the present invention;

Fig. 6 is a left-right tilting state diagram of the structure of the double-back office chair of the present invention;

Fig. 7 is a state diagram of the lifting displacement state of the double-back office chair structure of the utility model;

Fig. 8 is a schematic diagram of the location configuration of the lifting adjustment unit in another embodiment of the multi-adjustment structure of the headrest provided in the double-back office chair of the present invention.

Detailed ways

The embodiment of the utility model provides a double-back office chair, which can provide the user with headrest adjustment according to the required head posture, so as to enjoy the multi-position angle adjustment function of the headrest.

Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.

As shown in Figures 1 to 7, the double-back office chair of the present invention includes:

A chair body 8, wherein the chair body 8 includes a seat portion 80, a tripod portion 81 assembled at the bottom end of the seat portion 80, and a pair of chair backs 82 assembled at the top of the back side of the seat portion 80 wherein the double chair back 82 is composed of a left side backboard 821 and a right side backboard 822 arranged at intervals, and the left and right side backboards 821, 822 are connected to each other by a chairback bracket 9, The bottom side of the chair back bracket 9 is connected and positioned on the back side of the seat portion by a vertical bracket 85;

A headrest 10, the bottom end of which has a coupling bracket 7 for coupling to the seat back bracket 9 provided between the left and right side backboards 821, 822 of the double chair back 82;

A headrest multi-adjustment structure 1, the headrest multi-adjustment structure 1 is fixed on the rear end surface of the headrest 10, wherein the headrest multi-adjustment structure 1 includes a tilt adjustment unit 2, a front and rear adjustment unit 3, and a tilt adjustment unit 4 And a lifting adjustment unit 5; wherein

The reclining adjustment unit 2 includes a rear bracket 11 fixed on the rear end of the headrest 10, the rear bracket 11 is pivotally assembled with a horizontal frame 20, and the relative pivotal position of the horizontal frame 20 and the rear bracket 11 is axially arranged. There is a tilting shaft 21, and one end of the tilting shaft 21 is provided with a tilting positioning part 22 for adjusting and positioning the tilting angle of the headrest 10; and

The front and rear adjustment unit 3 includes a guide block 31, and a U-shaped horizontal frame 20 that penetrates the inside of the guide block 31 and is stretched forward and backward. In order to make the horizontal frame 20 and the connected rear bracket 11 and headrest 10 have a forward and backward displacement configuration by using the guide block 31 as a reference point, the predetermined position of the guide block 31 is provided with a positioning headrest 10 for front and rear displacement Amount of front and rear locators 32; and

The tilt adjustment unit 4 includes a seat plate 40, and the seat plate 40 is respectively penetrated with a pivot hole 41, and the pivot hole 41 is pivoted on the bottom surface of the guide block 31 by a pivot piece 42, so that the guide block 31 and the connected horizontal frame 20, rear bracket 11 and headrest 10 can produce a left-right tilting configuration by using the pivoting member 42 as the pivot center, and the pivoting shaft hole 41 of the seat plate 40 penetrates through the relative rotation position There is a limiting arc groove 43, and the limiting arc groove 43 is screwed on the bottom end surface of the guide block 31 by a tilting positioning member 44, so as to adjust the left and right tilting angle of the headrest 10; and

The lifting adjustment unit 5 includes a frame block 50, and a longitudinal frame 51 that penetrates the interior of the frame block 50 and is vertically telescopically displaced. The vertical frame 51 and the connected seat plate 40, guide block 31, horizontal frame 20, rear support 11 and headrest 10 can produce a lifting displacement configuration by using the frame block 50 as a reference point, and the frame block 50 is predetermined. The position is provided with a lifting positioning member 52 for positioning the lifting displacement of the headrest 10;

Wherein, a lateral shift positioning member 83 is installed between the chair back support 9 and the left and right back side plates 821, 822 respectively, and the lateral transfer positioning member 83 is assembled with the left and right back side plates 821, 822. Each is formed with a plurality of elastic connecting components 86 , and an assembly positioning member 84 is installed at the other end, so that the left and right back side panels 821 , 822 can be moved and positioned laterally along the seat back bracket 9 .

As shown in Figure 8, the vertical frame 51 of the lifting adjustment unit 5 can also be in the form of a double rod. The lift positioning member 52 can adjust the height of the headrest 10 .

According to this, the headrest 10 can be adjusted relative to the chair body 8 at multiple angle positions of various types such as up and down tilt, front and rear displacement, left and right tilt, and up and down displacement, so that the utility model can be used in wheelchairs. During implementation, it can provide the user with headrest adjustment according to the head posture required leaning, so as to enjoy the comfortable function of headrest leaning, which makes the headrest multi-position angle adjustment quality of the utility model improve the practical progress.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (3)

1. A double back office chair, comprising: A chair body with double backs, the chair body includes a seat part, a tripod part assembled at the bottom end of the seat part and a pair of chair backs assembled at the top of the back side of the seat part, Wherein the double chair back is composed of a left side backboard and a right side backboard arranged at intervals. connected and positioned on the back side of the seat portion by a vertical bracket; A headrest, the bottom end of the headrest has a coupling bracket for coupling to the chair back bracket provided between the left and right side backboards of the double chair back; A headrest multi-adjustment structure, which is arranged on the rear end surface of the headrest, includes a tilt adjustment unit, a front and rear adjustment unit, a tilt adjustment unit and a lift adjustment unit; wherein the tilt adjustment unit includes a The rear bracket at the rear end, the rear bracket is pivotally assembled with a horizontal frame, and the relative pivotal position of the horizontal frame and the rear bracket is pivotally provided with a tilting shaft, and one end of the tilting shaft is provided with a head The reclining positioner for adjusting and positioning the reclining angle of the pillow; the front and rear adjustment unit includes a guide block and a horizontal frame that penetrates the inside of the guide block and is stretched forward and backward. The front end of the horizontal frame is pivotally combined with the rear end surface of the headrest The rear bracket, so that the horizontal frame and the connected rear bracket and headrest can produce front and rear displacement configurations by using the guide block as the reference point. The predetermined position of the guide block is provided with a front and rear positioning for positioning the front and rear displacement of the headrest. piece; the tilt adjustment unit includes a plate, and the seat plate is respectively penetrated with a shaft hole, and the shaft hole is pivoted on the bottom end surface of the guide block by a rotating piece, so that the guide block and the connected horizontal The frame, the rear bracket and the headrest can produce left and right tilting configurations by using the pivoting part as the center of the pivoting support. In addition, the pivoting shaft hole of the seat plate runs through a limit arc groove relative to the rotation position, and the limit arc groove is borrowed A tilting positioning piece is screwed on the bottom end surface of the guide block to adjust the left and right tilting angle of the headrest; The lifting adjustment unit includes a frame block and a vertical frame that penetrates the inside of the frame block for vertical telescopic displacement. , the guide block, the cross frame, the rear support and the headrest can produce a lifting displacement configuration by using the frame block as a reference point, and the predetermined position of the frame block is provided with a lifting positioning piece for adjusting the lifting displacement of the headrest. the 2. The office chair with double backs according to claim 1, characterized in that, a lateral shift positioning member is respectively installed between the chair back support and the left and right back side panels, and the lateral transfer positioning member and A plurality of elastic connecting components are formed at the assembling parts of the left and right back and side plates, and an assembling positioning part is respectively installed at the other ends. 3. The office chair with double backs according to claim 1, characterized in that the vertical frame of the lifting adjustment unit is in the form of a single rod or double rods, and the vertical frame penetrates into the single rod provided at the upper end of the frame block. Or in the two fixing holes, the height of the headrest can be adjusted by controlling the lifting positioning member. the

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