CN209883556U

CN209883556U - Office chair with adjustable armrests

Info

Publication number: CN209883556U
Application number: CN201920209596.4U
Authority: CN
Inventors: 严冬平
Original assignee: Foshan Xinaoda Plastic Hardware Products Co Ltd
Current assignee: Foshan Xinaoda Plastic Hardware Products Co Ltd
Priority date: 2019-02-19
Filing date: 2019-02-19
Publication date: 2020-01-03
Anticipated expiration: 2029-02-19

Abstract

The utility model provides an office chair with adjustable armrests, which comprises a chassis structure, a backrest structure, a cushion structure, an armrest structure and a chair foot structure; the chassis structure comprises a backrest installation part, a cushion installation part, a handrail installation part and a chair foot installation part; the handrail structure comprises a handrail panel component and a handrail upright post component, wherein the handrail panel component is arranged at the upper end of the handrail upright post component; a first sliding groove is formed in the handrail panel component, a sliding block matched with the first sliding groove is arranged in the first sliding groove, and the sliding block is fixedly connected with the upper end of the handrail upright post component; the upper end of the handrail upright post component is provided with an upward protruding fixed block, and the handrail upright post component is fixedly connected with the sliding block through the fixed block; the lower surface of the handrail panel component is provided with a second sliding groove which is parallel to the first sliding groove. The utility model discloses an office chair with adjustable handrail, but the handrail back-and-forth movement is adjusted, provides good support for the user.

Description

Office chair with adjustable armrests

Technical Field

The utility model relates to a technical field of office supplies especially relates to an office chair with adjustable handrail.

Background

In the prior art, the armrest structure of the office chair is used for supporting the elbow position of the user and reducing the burden of the hand or the shoulder of the user, but the support range of the existing armrest structure is limited, and when the posture of the user is changed (such as when the body leans forward), the position of the armrest structure cannot be adjusted, so that the armrest structure cannot provide good support for the user; secondly, for users with different heights, the heights of the elbows/hands are different, and the supporting height of the conventional handrail structure is fixed, so that the requirements of different users are difficult to meet.

Thus, there is still a need for improvement and development of the prior art.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an office chair with adjustable handrail, but the handrail back-and-forth movement is adjusted, provides good support for the user.

The technical scheme of the utility model as follows:

an office chair with adjustable armrests comprises a chassis structure, a backrest structure, a cushion structure, armrest structures and chair leg structures; the chassis structure comprises a backrest installation part, a cushion installation part, a handrail installation part and a chair foot installation part, wherein the backrest structure is connected with the chassis structure through the backrest installation part;

the handrail structure comprises a handrail panel component and a handrail upright post component, wherein the handrail panel component is arranged at the upper end of the handrail upright post component;

a first sliding groove is arranged in the handrail panel component and extends along the length direction of the handrail panel component; a sliding block matched with the first sliding groove is arranged in the first sliding groove, and the sliding block is fixedly connected with the upper end of the handrail upright post component;

the upper end of the handrail upright post component is provided with an upward protruding fixed block, the width of the fixed block is smaller than that of the sliding block, and the handrail upright post component is fixedly connected with the sliding block through the fixed block; the lower surface of the handrail panel component is provided with a second sliding groove, the fixed block passes through the second sliding groove and can move along the length direction of the second sliding groove, and the second sliding groove is parallel to the first sliding groove.

The office chair with the adjustable armrests is characterized in that a positioning assembly is arranged between the first sliding chute and the sliding block, and the positioning assembly comprises a positioning piece arranged in the sliding block and a plurality of positioning concave positions arranged on the side surface of the first sliding chute; the positioning piece is opposite to the positioning concave position and matched with the positioning concave position, and the positioning concave position is distributed along the length direction of the first sliding chute.

The office chair with the adjustable armrests is characterized in that the positioning piece comprises a positioning block and a first elastic piece connected with the positioning block; one end of the positioning block is opposite to the positioning concave position, and the other end of the positioning block is connected with the first elastic piece.

The office chair with the adjustable armrests is characterized in that the positioning piece comprises two positioning blocks and a first elastic piece arranged between the two positioning blocks; the positioning concave positions are arranged on two opposite side surfaces of the first sliding groove; one positioning block is opposite to the positioning concave position of one side surface of the first sliding groove, and the other positioning block is opposite to the positioning concave position of the other side surface of the first sliding groove.

The office chair with the adjustable armrests is characterized in that the positioning concave positions are arc-shaped concave positions, and a plurality of arc-shaped concave positions extend along the length direction of the first sliding chute in a wave shape; the positioning block is an arc-shaped positioning block, and the positioning concave position is in concave-convex fit with the arc-shaped positioning block.

The office chair with the adjustable armrest, wherein, handrail stand subassembly still includes the height control subassembly of adjusting the armrest height, the height control subassembly includes stand connecting piece, stand part, the upper end and the rotatory regulating part fixed connection of stand connecting piece, be equipped with the third spout that matches with the stand connecting piece in the stand part, the third spout extends along the length direction of stand part, the stand connecting piece can slide in the third spout.

The office chair with the adjustable armrests is characterized in that clamping components matched with each other are arranged between the upright post connecting piece and the upright post part.

The office chair with the adjustable armrests is characterized in that the clamping component comprises a poking connecting piece, a clamping bead and clamping positions distributed along the length direction of the third sliding chute; the shifting connecting piece is arranged in the upright post connecting piece and can slide along the length direction of the upright post connecting piece; the side surface of the upright post connecting piece is provided with a clamping hole, the diameter of the clamping hole is smaller than that of the clamping bead, and the clamping bead is arranged in the clamping hole; the clamping position is matched with the part of the clamping bead protruding out of the clamping hole; an inclined plane is arranged on the side surface of the toggle connecting piece opposite to the clamping hole.

The office chair with the adjustable armrests is characterized in that a second elastic piece is arranged between the upright post connecting piece and the shifting connection.

The utility model has the advantages that: the utility model provides an office chair with adjustable handrail, but the handrail back-and-forth movement is adjusted, provides good support for the user.

Drawings

Fig. 1 is a schematic structural diagram of an office chair of the present invention.

Fig. 2 is a top view of the interior of the arm panel assembly.

Fig. 3 is a schematic view of the positioning block of fig. 2 moving to a next positioning recess.

Fig. 4 is a schematic view of the interior of the handrail upright assembly.

Fig. 5 is a schematic view of the toggle link of fig. 4 in a configuration sliding upward.

Description of reference numerals: 10. an office chair; 100. a chassis structure; 200. a backrest structure; 300. a cushion structure; 400. a chair leg structure; 500. a handrail structure; 510. an armrest panel assembly; 511. a first chute; 512. a slider; 513. a second chute; 514. positioning the concave position; 515. positioning blocks; 516. a first elastic member; 520. a handrail column assembly; 521. a column connector; 522. a column part; 523. a third chute; 524. shifting the connecting piece; 525. clamping the beads; 526. clamping; 527. a clamping hole; 528. a bevel; 529. a second elastic member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

As shown in fig. 1, the present invention provides an office chair 10 with an armrest structure 500, which includes a chassis structure 100, a backrest structure 200, a cushion structure 300, an armrest structure 500, and a chair foot structure 400. The chassis structure 100 includes a backrest mounting portion, a cushion mounting portion, a handrail mounting portion, and a chair foot mounting portion; the backrest structure 200 is connected to the chassis structure 100 through a backrest mounting portion, the cushion structure 300 is connected to the chassis structure 100 through a cushion mounting portion, the armrest structure 500 is connected to the chassis structure 100 through an armrest mounting portion, and the chair foot structure 400 is connected to the chassis structure 100 through a chair foot mounting portion. Specifically, two armrest mounting portions are provided, and the two armrest mounting portions are respectively provided on the left and right sides of the office chair 10.

As shown in fig. 2 ~ 5, the handrail structure 500 includes a handrail pillar assembly 520 and a handrail panel assembly 510, wherein the handrail panel assembly 510 is disposed at an upper end of the handrail pillar assembly 520, and a lower end of the handrail pillar assembly 520 is connected to the handrail mounting portion.

As shown in fig. 2 and 3, in order to achieve the fore-and-aft adjustment of the arm rest structure 500, a first sliding slot 511 is provided in the arm rest panel assembly 510, the first sliding slot 511 extending along the length direction of the arm rest panel assembly 510; a sliding block 512 matched with the first sliding groove 511 is arranged in the first sliding groove 511, and the sliding block 512 is fixedly connected with the upper end of the handrail upright post component 520. Specifically, an upward protruding fixing block is disposed at the upper end of the armrest column assembly 520, the width of the fixing block is smaller than that of the slider 512, and the armrest column assembly 520 is fixedly connected with the slider 512 through the fixing block. A second sliding groove 513 is formed in the lower surface of the handle panel assembly 510, the second sliding groove 513 is parallel to the first sliding groove 511, the width of the second sliding groove 513 is smaller than the width of the first sliding groove 511, and the fixing block passes through the second sliding groove 513 and can move along the length direction of the second sliding groove 513. In the present invention, the armrest structure 500 is adjustable forward and backward, which means that the armrest panel assembly 510 is adjustable forward and backward relative to the armrest column assembly 520.

The utility model discloses set up the fixed block, and the width of fixed block is less than the width of slider 512, the width of second spout 513 is less than the width of first spout 511, make slider 512 can slide in first spout 511, the fixed block can remove in second spout 513, when handrail panel subassembly 510 is for handrail stand subassembly 520 back-and-forth movement, first spout 511 provides the direction for handrail panel subassembly 510's back-and-forth movement, second spout 513 provides relative motion's space for handrail stand subassembly 520. The utility model discloses in, the length direction of handrail panel subassembly 510 is the direction of handrail panel subassembly 510 back-and-forth movement, and the width of fixed block and the width of slider 512 are the fixed block and the slider 512 is perpendicular to the ascending size in handrail panel subassembly 510 length direction's direction.

Further, in order to prevent the armrest panel assembly 510 from moving relative to the armrest column assembly 520 when moving to a desired position, a positioning assembly is disposed between the first sliding slot 511 and the sliding block 512, and the positioning assembly includes a positioning member disposed in the sliding block 512, and a plurality of positioning recesses 514 disposed at the side of the first sliding slot 511; the positioning element is opposite to the positioning concave portion 514 and matches with the positioning concave portion 514, and the positioning concave portion 514 is distributed along the length direction of the first sliding slot 511. The utility model discloses set up locating component at first spout 511 and slider 512, when applying an external force to the length direction of handrail panel subassembly 510, the setting element can move between the concave position 514 in different location, makes handrail panel subassembly 510 for handrail stand subassembly 520 back-and-forth movement, and when removing this external force, the setting element is restricted in rather than relative location concave position 514, realizes handrail panel subassembly 510's location.

In one embodiment, the positioning element includes a positioning block 515, and a first elastic element 516 connected to the positioning block 515, wherein one end of the positioning block 515 is opposite to the positioning recess 514, and the other end is connected to the first elastic element 516. In a normal use state, the positioning block 515 is pushed by the first elastic member 516 to be clamped in the positioning concave 514, when the front and rear positions of the arm panel assembly 510 need to be adjusted, an external force is applied along the length direction of the arm panel assembly 510, the first sliding slot 511 moves back and forth relative to the sliding block 512 under the action of the external force, the positioning block 515 compresses the first elastic member 516 and moves to the next positioning concave 514, and the positioning block 515 is clamped in the next positioning concave 514 again under the action of the first elastic member 516. The first elastic member 516 is preferably a spring.

Preferably, the positioning member includes two positioning blocks 515, a first elastic member 516 disposed between the two positioning blocks 515; the positioning concave parts 514 are arranged on two opposite side surfaces of the first sliding chute 511; one of the positioning blocks 515 is opposite to the positioning concave portion 514 of one side surface of the first sliding slot 511, and the other positioning block 515 is opposite to the positioning concave portion 514 of the other side surface of the first sliding slot 511. The two positioning blocks 515 and the positioning concave portions 514 on both sides are symmetrically arranged, so that the positioning effect of the arm panel assembly 510 is more stable and the arm panel assembly is not easy to rotate left and right.

Further, in order to make the arm panel assembly 510 move to the next positioning concave portion 514 more easily under the action of external force, that is, the positioning block 515 moves to the next positioning concave portion 514 more easily under the action of external force, the positioning concave portions 514 are arc-shaped concave portions, and a plurality of arc-shaped concave portions extend along the length direction of the first sliding slot 511 in a wave shape; the positioning block 515 is an arc positioning block 515, and the position of the positioning concave 514 corresponding to the arc positioning block 515 is concave-convex fit. The arc concave positions and the arc positioning blocks 515 are in arc concave-convex fit, and the arc concave positions extend in a wave shape, so that the arc positioning blocks 515 can transition more stably and smoothly when moving to the downward positioning concave positions 514.

Preferably, the positioning concave positions 514 on two opposite sides of the first sliding slot 511 are all set as arc concave positions, and a plurality of arc concave positions on each side extend along the length direction of the first sliding slot 511 in a wave shape; the two positioning blocks 515 are arc-shaped positioning blocks 515, one of the arc-shaped positioning blocks 515 is in concave-convex fit with an arc-shaped concave position on one side surface of the first sliding groove 511, and the other arc-shaped positioning block 515 is in concave-convex fit with an arc-shaped concave position on the other side surface of the first sliding groove 511.

Further, as shown in fig. 4 and 5, in order to make the height of the armrest adjustable, the armrest column assembly 520 also includes a height adjustment assembly.

Specifically, the height adjustment assembly includes a column connector 521, a column member 522. The upper end and the rotation adjustment spare fixed connection of stand connecting piece 521 are equipped with the third spout 523 with stand connecting piece 521 matching in the stand part 522, and third spout 523 extends along the length direction of stand part 522, and stand connecting piece 521 can slide in third spout 523 to realize the height-adjustable of handrail panel assembly 510.

Further, in order to prevent the height of the arm panel assembly 510 from being changed after the height adjustment, a locking assembly is provided between the pillar connector 521 and the pillar member 522.

Specifically, the detent assembly includes a toggle link 524, a detent ball 525, and detents 526 distributed along the length of the third runner 523. The toggle connecting piece 524 is arranged in the upright post connecting piece 521 and can slide along the length direction of the upright post connecting piece 521; a clamping hole 527 is formed in the side face of the upright post connecting piece 521, the diameter of the clamping hole 527 is smaller than that of the clamping ball 525, and the clamping ball 525 is arranged between the inner wall of the upright post connecting piece 521 and the toggle connecting piece 524 and is clamped in the clamping hole 527; the position clip 526 is matched with the part of the card bead 525 protruding out of the card hole 527; the side of the toggle connecting member 524 opposite to the locking hole 527 is provided with an inclined surface 528, the inclined surface 528 comprises a wide end and a narrow end, the wide end refers to the widest distance from the inclined surface 528 to the inner wall of the upright post connecting member 521, the narrow end refers to the narrowest distance from the inclined surface 528 to the inner wall of the upright post connecting member 521, and the distance from the inclined surface 528 to the inner wall of the upright post connecting member 521 gradually increases from the narrow end to the wide end. When the height of the handrail is fixed, the connecting element 524 is shifted to slide to the position where the narrow end is opposite to the clamping hole 527, so that the clamping ball 525 is clamped between the narrow end and the clamping hole 527, and the part of the clamping ball 525 protruding out of the clamping hole 527 is matched with the clamping position 526, so that the upright post connecting element 521 is fixed and cannot slide along the third sliding groove 523; when the height of the handrail needs to be adjusted, the toggle connecting piece 524 slides to the position where the wide end is opposite to the clamping hole 527, because the distance from the wide end to the clamping hole 527 is increased, the clamping ball 525 can move between the wide end and the clamping hole 527, so that the clamping ball 525 cannot protrude out of the clamping hole 527, the matching state of the clamping ball 525 and the clamping position 526 is released, the upright post connecting piece 521 can slide along the third sliding groove 523, and the relative position of the upright post connecting piece 521 and the upright post component 522 is changed, so that the height of the handrail is adjusted.

Furthermore, in order to ensure that the position of the toggle connecting piece 524 is not easy to change when the height of the handrail is fixed, the fixing effect is more reliable, a second elastic member 529 is provided between the pillar connection member 521 and the striking connection member 524, in a normal state, the toggle connecting element 524 is under the action of the second elastic element 529, the narrow end is kept at a position opposite to the blocking hole 527, thereby ensuring the matching state of the clamping bead 525 and the clamping position 526, when the toggle connecting piece 524 is pulled manually, the relative positions of the toggle link 524 and the post link 521 change, the second elastic member 529 is compressed or stretched, when the toggle connector 524 is pulled to a position where the wide end is opposite to the latch hole 527, the height of the armrest may be adjusted, and after the toggle connector 524 is released, the toggle connecting element 524 is reset under the elastic restoring force of the second elastic element 529, the clamping ball 525 is clamped in the clamping hole 527 again, and the clamping ball 525 and the clamping position 526 are restored to the matching state. Specifically, the second elastic member 529 is a spring.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. An office chair with adjustable armrests is characterized by comprising a chassis structure, a backrest structure, a cushion structure, an armrest structure and a chair foot structure; the chassis structure comprises a backrest installation part, a cushion installation part, a handrail installation part and a chair foot installation part, wherein the backrest structure is connected with the chassis structure through the backrest installation part;

2. The adjustable armrest office chair as claimed in claim 1, wherein a positioning assembly is provided between the first sliding slot and the sliding block, the positioning assembly comprises a positioning member provided in the sliding block, and a plurality of positioning recesses provided at the side of the first sliding slot; the positioning piece is opposite to the positioning concave position and matched with the positioning concave position, and the positioning concave position is distributed along the length direction of the first sliding chute.

3. The adjustable-armrest office chair of claim 2, wherein the positioning member comprises a positioning block, a first elastic member connected to the positioning block; one end of the positioning block is opposite to the positioning concave position, and the other end of the positioning block is connected with the first elastic piece.

4. The adjustable armrest office chair of claim 2, wherein the positioning member comprises two positioning blocks, a first resilient member disposed between the two positioning blocks; the positioning concave positions are arranged on two opposite side surfaces of the first sliding groove; one positioning block is opposite to the positioning concave position of one side surface of the first sliding groove, and the other positioning block is opposite to the positioning concave position of the other side surface of the first sliding groove.

5. The adjustable armrest office chair of claim 3, wherein the positioning recess is an arc-shaped recess, and a plurality of arc-shaped recesses extend in a wave shape along the length direction of the first sliding groove; the positioning block is an arc-shaped positioning block, and the positioning concave position is in concave-convex fit with the arc-shaped positioning block.

6. The adjustable armrest office chair of claim 4, wherein the positioning recess is an arc-shaped recess, and a plurality of arc-shaped recesses extend in a wave shape along the length direction of the first sliding groove; the positioning block is an arc-shaped positioning block, and the positioning concave position is in concave-convex fit with the arc-shaped positioning block.

7. The adjustable-armrest office chair according to claim 1, wherein the armrest column assembly further comprises a height adjustment assembly for adjusting the height of the armrest, the height adjustment assembly comprises a column connecting member and a column member, the upper end of the column connecting member is fixedly connected with the rotary adjusting member, a third sliding slot matched with the column connecting member is arranged in the column member, the third sliding slot extends along the length direction of the column member, and the column connecting member can slide in the third sliding slot.

8. The adjustable armrest office chair of claim 7, wherein a cooperating detent assembly is provided between the post coupler and the post member.

9. The adjustable armrest office chair of claim 8, wherein the detent assembly comprises a toggle link, a detent bead, detents distributed along the length of the third chute; the shifting connecting piece is arranged in the upright post connecting piece and can slide along the length direction of the upright post connecting piece; the side surface of the upright post connecting piece is provided with a clamping hole, the diameter of the clamping hole is smaller than that of the clamping bead, and the clamping bead is arranged in the clamping hole; the clamping position is matched with the part of the clamping bead protruding out of the clamping hole; an inclined plane is arranged on the side surface of the toggle connecting piece opposite to the clamping hole.

10. An adjustable arm rest office chair as claimed in claim 1, wherein a second resilient member is provided between the post connection member and the toggle connection.