CN213097011U - Chair and rocking mechanism thereof - Google Patents

Abstract

The utility model discloses a chair and wabbler mechanism thereof, including mounting bracket and the seat that sways that is used for fixed seat support bracing piece, sway the seat and install on the mounting bracket, its characterized in that: the mounting frame comprises a bottom plate in contact with the ground and a top plate arranged above the bottom plate through at least one support column, a first through hole is formed in the top plate, the seat support rod penetrates through the first through hole, the diameter of the first through hole is larger than that of the seat support rod, and the swing seat is arranged between the top plate and the bottom plate through at least 3 elastic elements so that the swing seat can swing relative to the mounting frame; according to the technical scheme, the horizontal rotation and the sliding of the chair can be realized, the swing function of the chair can be realized, meanwhile, the original structural design of the chair does not need to be changed, and the universality is high.

Description

Chair and rocking mechanism thereof

Technical Field

The invention belongs to the field of seats, and particularly relates to a chair and a swing mechanism thereof.

Background

The chair is common furniture in the market at present, and most of the chairs have the function of adjusting the sitting height, namely the height of the chair seat is adjusted through an air rod; in addition, if the swivel chair is used as a common office chair, horizontal rotation and sliding can be realized. In addition, many office workers or students can sit on the seat in most of the day, so that the seat is provided with a swinging function, and the rest of the personnel in the work is facilitated.

The prior office chair (swivel chair) adopts a tilting chassis to realize the function of swinging in front and back amplitude. For example, a swivel chair base with adjustable forward inclination is disclosed in the patent document of chinese utility model with publication number "CN 206252158U", and is used for mounting a swivel chair support rod through a swivel chair rod hole on the base plate seat. An intermediate plate is arranged above the chassis base in a matched manner through a tilting rotating shaft; the tilting rotating shaft is hinged with the vertical wall of the middle plate and the vertical wall of the base plate seat; a forward-inclined plate is installed above the middle plate in a matched mode through a forward-inclined bottom rotating shaft or a forward-inclined middle rotating shaft; the forward-inclined bottom rotating shaft is hinged with a forward-inclined plate vertical wall of the forward-inclined plate and a base plate vertical wall of the base plate seat; the forward-inclined middle rotating shaft is hinged with a forward-inclined plate vertical wall of the forward-inclined plate and a middle plate vertical wall of the middle plate. The base of the swivel chair and the chair back can be simultaneously matched and inclined forwards to fit the back, waist and whole pelvis of a rider, so that the swivel chair better conforms to the human engineering; the rider feels more comfortable. However, the above-mentioned solutions only enable the seat to swing in the front-back direction by tilting the chassis, but do not have the function of swinging in the left-right direction or any angle direction.

Thus, chinese patent publication No. CN201798301U discloses a universal rocking chair, wherein a seat, a backrest, and armrests are connected by fasteners, and are connected to an upper connecting member at the upper end of a supporting spring by fasteners under the seat, the seat is adjustable forward and backward relative to the upper connecting member, and the upper connecting member is fixedly connected to the supporting spring; the lower part of the supporting spring is fixed on a footing connecting plate through a fastener, the footing connecting plate is fixedly connected with the footing, a foot pad is arranged below the footing end, and one footing end is also provided with a wheel shaft and a caster wheel which can assist in moving. Due to the action of the supporting spring, the upper part of the chair can swing in a universal way, so that people can use the chair for leisure and fitness.

And chinese patent publication No. CN110742430A discloses a dynamic seat, comprising: a first base; the second base rotates left and right relative to the first base; a seat support configured to support a human body to sit; one end of the first crank is hinged with the first base; the other end of the first crank is rotatably connected with the seat supporting piece, and the rotary connection part of the first crank and the seat supporting piece is flexible; two ends of the second crank are respectively hinged with the second base and the seat supporting piece; the rocker is configured to be connected with the chair back component and is connected with the second crank into a whole; the first crank, the base support piece, the second crank, the first base and the second base form a four-bar linkage; when the seat supporting piece and the second base rotate around the first base left and right together, the rotary connection part of the first crank and the seat supporting piece deforms under the action of the torsional force transmitted by the seat supporting piece, and restores to the initial state when the torsional force disappears. The user can swing left and right or lean forward and backward to meet different postures of the user.

Although the latter two chairs achieve multi-directional swinging compared with the first chair, the latter two chairs do not solve a common phenomenon of swinging chairs: in order to increase the rocking function of the seat, in particular to make the seat rocking in all directions, it is common to structurally modify the existing well-performing seat or seat support structure, but the resulting mechanical solution is not only relatively complex, but also expensive to manufacture, and often the seat or seat support structure is inferior to the previous one due to the additional necessary components and the space required.

Disclosure of Invention

The invention aims to provide a chair and a swing mechanism thereof, which can realize the swing function of the chair, simultaneously do not need to change the original structural design of the chair and have strong universality.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a rocking mechanism of chair, includes the mounting bracket and is used for the rocking seat of fixed seat support bracing piece, and the rocking seat is installed on the mounting bracket, its characterized in that:

the mounting bracket includes the bottom plate and installs the roof in the bottom plate top through at least root support post, is equipped with first through-hole on the roof, and the seat support bracing piece passes first through-hole, and first through-hole diameter is greater than seat support bracing piece diameter, it installs between roof and bottom plate through 3 at least elastic element to swing the seat to the mounting bracket sways.

Preferably, the bottom surface on the bottom plate is upwards sunken to form a protruding portion on the upper surface of the bottom plate, a second through hole for the swing seat to fall to the ground is formed in the protruding portion, and the support columns are located around the second through hole, are circumferentially uniformly distributed and are fixedly mounted on the protruding portion.

Preferably, the at least 3 elastic elements are uniformly distributed on the circumference by taking the axis of the chair seat supporting rod as the center of a circle and are all positioned on the inner side of the supporting column.

Preferably, the elastic element comprises a compression spring or a tension spring, wherein the compression spring is mounted on the upper surface of the top plate, and the tension spring is mounted on the lower surface of the top plate.

Preferably, the elastic element further comprises a connecting piece penetrating through the top plate, the compression spring is sleeved on the connecting piece, the upper end face of the swing seat extends to the periphery to form an annular first extending edge, the connecting pieces are evenly distributed along the circumference of the first extending edge, the upper end and the lower end of each connecting piece are provided with threaded portions, the threaded portion at the lower end of each connecting piece penetrates through the first extending edge and is fixed on the first extending edge through threaded connection, the upper end of each connecting piece is fixedly provided with a blocking piece through threaded connection, and the top end of the compression spring abuts against the blocking piece.

Preferably, the top plate is provided with a plurality of mounting grooves for accommodating the pressure springs, third through holes for the connecting pieces to pass through are formed in the mounting grooves, and the diameter of each third through hole is larger than that of each connecting piece;

the mounting groove is formed by a circle of protrusions on the upper surface of the top plate, or the mounting groove is formed by a blind hole which is downwards concave on the upper surface of the top plate.

Preferably, the first extending edge is provided with a notch at the area close to the supporting column.

Preferably, the lower end surface of the rocking base is convex.

A chair comprises the rocking mechanism.

The invention has the beneficial effects that:

1) for common chairs on the market, the function of all-directional swinging can be realized only by replacing the chair legs, the original supporting structure of the chair does not need to be changed, the chair is convenient and quick, and the cost is low.

2) The rocking base of the present invention is movable, but its movement is limited by the elastic element, and in general, the movement of the rocking base includes elevation in the vertical direction and inclination with respect to the horizontal plane, that is, inclination with respect to the ground; more specifically, when the chair is not loaded or people are not seated, the swinging seat is at a certain distance from the ground under the action of the elastic element and the lower end surface of the swinging seat is opposite to the ground, when the chair is loaded in the vertical direction, the swinging seat descends or the swinging seat descends to the ground, and when the chair is loaded in the horizontal direction, the swinging seat generates the corresponding inclination in the horizontal direction, namely swings.

3) The mounting frame is a main supporting piece of the chair, each pressure spring is in a compressed state in the swinging process of the swinging seat, the pressure spring is located on the upper surface of the mounting frame, namely the vertical downward acting force is applied to the mounting frame by the swinging of the swinging seat, the larger the swinging amplitude of the swinging seat is, the larger the vertical downward acting force applied to the mounting frame by the pressure spring is, and the mounting frame is more stably erected on the ground, so that the swinging stability is ensured.

4) The utility model discloses a swing seat, swing seat's swing in-process, swing the compression distance of seat one end on corresponding pressure spring of deviating from the distance can be reacted completely through the connecting piece for the elasticity performance of pressure spring obtains make full use of, and then when making general people sit and sway on the seat support, the reaction force of pressure spring just is enough to ensure to sway and is in a reasonable angle within range and a slower rate of swaying, promotes user's comfort level then.

5) The maximum swinging angle can be limited by the matching of the first through hole and the seat support supporting rod.

Drawings

FIG. 1 is a first schematic structural diagram of a rocking mechanism according to the present invention;

FIG. 2 is a second schematic structural view of the rocking mechanism of the present invention;

FIG. 3 is a schematic structural view of the rocking mount of the present invention;

FIG. 4 is a schematic view of the rocking chair of the present invention;

fig. 5 is a schematic structural view of the rocking connector of the present invention.

Description of reference numerals: 1. a chair seat support bar; 2. mounting a disc; 3. a mounting frame; 4. a swing seat; 31. a base plate; 32. a support pillar; 33. a top plate; 331. a first through hole; 5. an elastic element; 311. a second through hole; 51. a connecting member; 52. a pressure spring; 332. Mounting grooves; 41. a first extending edge; 511. a threaded portion; 411. and (4) a notch.

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 or similar 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 drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the 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", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

In the present invention, for convenience of description, the six directions "up", "down", "inside", "outside", "left", "right", and the like are based on the state of a single cantilever arm in use; wherein; the inner end of the extending arm is closer to the swing seat than the outer end of the extending arm, the left side of the extending arm refers to the left-hand side of the extending arm from outside to inside, the right side of the extending arm refers to the right-hand side of the extending arm from outside to inside, and the upper and lower are the upper and lower in the normal sense.

A chair comprising a rocking mechanism as shown in figures 1-2; the seat cushion comprises a seat cushion support rod 1, a seat cushion and a backrest, wherein the seat cushion is fixedly arranged on the seat cushion support rod 1 through an installation plate 2, the backrest is arranged on the seat cushion, the backrest can be fixedly connected with the seat cushion and can also swing back and forth relative to the seat cushion to form a deck chair, and the seat cushion support rod 1 can be a common rod or a telescopic air rod; the rocking mechanism comprises an installation frame 3 used for contacting with the ground and a rocking seat 4 used for fixing the seat support supporting rod 1, and the rocking seat 4 is installed on the installation frame 3.

In the present embodiment, as shown in fig. 3, the mounting frame 3 includes a bottom plate 31 contacting with the ground and a top plate 33 mounted above the bottom plate 31 through at least 3 supporting columns 32, the top plate 33 is provided with a first through hole 331 for the seat supporting rod 1 to pass through, the diameter of the first through hole 331 is larger than that of the seat supporting rod 1, the swing seat 4 is mounted between the top plate 33 and the bottom plate 31 through at least 3 elastic elements 5, so that the swing seat 4 swings relative to the mounting frame 3, and when the lower end surface of the swing seat 4 contacts with the ground/bottom plate 31, the distance between the end of the swing seat 4 connected with the swing seat and the top plate 33 can be reduced by at least 1 elastic element 5.

It should be noted that the rocking mechanism can also be installed between the seat and the leg of the chair, so that the mounting frame 3 is not in contact with the ground but is fixedly connected with the leg of the chair, and the rocking mechanism as a whole plays a role of rocking support.

So set up, to common chair on the market, only need change its chair foot alright realize the function of all-round rocking to need not change original bearing structure of chair, convenient and fast, the cost is also low.

In addition, the rocking chair 4 of the present invention is movable, but its movement is limited by the elastic element 5, and in general, the movement of the rocking chair 4 includes elevation in the vertical direction and inclination with respect to the horizontal plane, that is, inclination with respect to the ground; more specifically, when there is no load or no person sitting on the chair, the swing seat 4 is spaced from the ground by the elastic member 5 and the lower end surface thereof is opposite to the ground, when there is a load in the vertical direction on the chair, the swing seat 4 is lowered or the swing seat 4 is lowered to the ground, and when there is a load in the horizontal direction on the chair, the swing seat 4 is tilted in the corresponding horizontal direction, i.e., it swings.

In this embodiment, the bottom surface of the bottom plate 31 contacting with the ground is recessed upward to form a protruding portion on the upper surface of the bottom plate 31, the protruding portion is provided with a second through hole 311 for the rocking base 4 to fall on, and the plurality of supporting columns 32 are all located around the second through hole 311, are circumferentially and uniformly distributed, and are fixedly mounted on the protruding portion; this is because the plurality of support columns 32 are fixedly mounted on the base plate 31 by screw-fitting, and thus the support columns 32 have a space for screw-fitting by the formed bosses.

The top plate 33 is installed above the bottom plate 31 through 3 to 8 support columns 32, the swing seat 4 is installed between the top plate 33 and the bottom plate 31 through 3 to 8 elastic elements 5, wherein 3 to 8 support columns 32 are uniformly distributed in a circumferential manner, 3 to 8 elastic elements 5 are uniformly distributed in a circumferential manner and are all located on the inner side of the support columns 32, and a circle surrounded by 3 to 8 support columns 32 and a circle surrounded by 3 to 8 elastic elements 5 are the same circle center; in the present embodiment, the top plate 33 is installed above the bottom plate 31 by 5 supporting columns 32, the swing seat 4 is installed between the top plate 33 and the bottom plate 31 by 5 elastic elements 5, and each elastic element 5 is located at the middle position between 2 supporting columns 32, and the diameter of the circle enclosed by 5 elastic elements 5 is slightly smaller than that of the circle enclosed by 5 supporting columns 32, and the diameter difference ranges from 10 mm to 30mm, which is set to ensure the structural stability of the mounting frame 3.

In this embodiment, the elastic element 5 includes a connecting member 51 penetrating through the top plate 33 and a pressure spring 52 sleeved on the connecting member 51, the connecting member 51 is preferably a steel bar to ensure the stability of the installation of the rocking base, the lower end of the connecting member 51 is fixedly connected with the rocking base 4, the top end of the pressure spring 52 abuts against the upper end of the connecting member 51, and the bottom end of the pressure spring 52 abuts against the top plate 33; in other embodiments, the connector 51 may be a steel cable, a high quality plastic rod, or a rod made of other materials that are not easily broken. Due to the arrangement, the deviation distance of one end of the swing seat 4 can be completely reflected on the corresponding compression distance of the compression spring 52 through the connecting piece 51, so that the elastic property of the compression spring 52 is fully utilized; in other embodiments, the elastic element 5 may also be a tension spring.

Further preferably, a plurality of circular mounting grooves 332 for accommodating part of the compression spring 52 and enabling the compression spring 52 to be vertical are formed in the top plate 33, a third through hole through which the connecting piece 51 can pass is formed in the mounting groove 332, and the diameter of the third through hole is larger than that of the connecting piece 51, so that the connecting piece 51 is ensured to have a swinging moving space in the third through hole;

the mounting groove 332 may be formed by a circle of protrusions on the upper surface of the top plate 33, and the mounting groove 332 may also be formed by a blind hole recessed on the upper surface of the top plate 33 to ensure that the pressure spring 52 is substantially in the vertical state.

So set up because the mounting bracket 3 is the main support piece of chair, at the rocking in-process of rocking seat 4, every pressure spring 52 all is in compression state, and the pressure spring 52 is located the upper surface of mounting bracket 3 and has applyed vertical decurrent effort to mounting bracket 3 in the rocking of rocking seat 4 promptly, and rocking seat 4's range of rocking is big more moreover, the pressure spring 52 is also big more to the vertical decurrent effort that mounting bracket 3 applyed, mounting bracket 3 is just more firm stand on the ground, and then has ensured the stability of rocking.

In this embodiment, as shown in fig. 4, the upper end surface of the rocking base 4 extends to the periphery to form an annular first extending edge 41, and a plurality of connecting members 51 are uniformly distributed along the circumference of the first extending edge, as shown in fig. 5, the upper end and the lower end of each connecting member 51 are provided with threaded portions 511, the threaded portions 511 at the lower end of the connecting members 51 penetrate through the first extending edge 41 and are fixed on the first extending edge 41 through threaded connection, the upper end of each connecting member 51 is fixed with a blocking member through threaded connection, and the top end of the pressure spring 52 abuts against the blocking member; this is provided to facilitate installation of the connector 51.

In this embodiment, the first extending edge 41 is provided with a notch 411 in a region close to the supporting pillar 32, and the notch 411 may be a crescent notch 411, a rectangular notch 411 or a semicircular notch 411, which is configured to prevent the first extending edge 41 from touching the supporting pillar 32 during the swinging process of the swinging seat 4.

In the present embodiment, the lower end surface of the rocking base 4 is convex. Further preferably, the lower end surface of the rocking base 4 may be a spherical surface, a circular table surface, or another convex surface, and the shape of the bottom surface of the rocking chair disclosed in publication No. CN210095162U may be referred to, so that the chair can still rock when the rocking base 41 is landed.

The specific state of the swing mechanism is as follows:

when the seat surface is not loaded, the lower end surface of the swing seat 4 is at a certain distance from the ground or the bottom plate, and the distance is usually between 1cm and 10cm, preferably between 1cm and 5 cm; the seat support rod 1 is in a vertical state and is positioned at the right center of the first through hole 331;

when the chair seat bears uniform load, the swinging seat 4 can move along the vertical direction and can not incline like the horizontal direction, when the load is large enough, the swinging seat 4 can vertically descend to the ground or a bottom plate, and the compression degree of all the compressed springs 52 is consistent;

when uneven load is borne on the seat surface, the swinging seat 4 moves downwards and has inclination in the horizontal direction, when the load is large enough, the swinging seat 4 can descend to the ground or a bottom plate and incline, and in the process, the compression degree of each compression spring 52 is different; and at least 1 compression spring 52 can reduce the distance between one end of the swing seat 4 connected with the compression spring and the top plate 33.

It is worth to be noted that, when the swing seat 4 descends to the ground or the bottom plate and inclines, the compression degree of the pressure spring 52 is already larger, and when a person sits on the seat to swing, the reaction force of the pressure spring 52 is enough to ensure that the swing is within a reasonable angle range and a slower swing speed, so as to improve the comfort of the user; in addition, the maximum angle of the swing is defined by the cooperation of the first through hole 331 and the seat support bar 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "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, the schematic representations of the terms used above 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.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a rocking mechanism of chair, includes mounting bracket (3) and rocking seat (4) that are used for fixed seat support bracing piece (1), and install on mounting bracket (3) rocking seat (4), its characterized in that:

mounting bracket (3) include bottom plate (31) and install roof (33) in bottom plate (31) top through 3 at least support columns (32), are equipped with first through-hole (331) on roof (33), and first through-hole (331) are passed in seat support bracing piece (1), and first through-hole (331) diameter is greater than seat support bracing piece (1) diameter, it installs between roof (33) and bottom plate (31) through 3 at least elastic element (5) to swing seat (4) for mounting bracket (3) sway.

2. The rocking mechanism of a chair as claimed in claim 1, wherein the bottom surface of the base plate (31) is recessed upwardly to form a raised portion on the upper surface of the base plate (31), the raised portion has a second through hole (311) for the rocking base (4) to pass through, and the plurality of support posts (32) are located around the second through hole (311) and are circumferentially distributed uniformly and fixedly mounted on the raised portion.

3. The rocking mechanism of a chair as claimed in claim 1, wherein the at least 3 resilient members (5) are circumferentially distributed around the axis of the seat support bar (1) and are located inside the support post (32).

4. The rocking mechanism of a chair according to claim 1, wherein the resilient member (5) comprises a compression spring (52) or a tension spring, wherein the compression spring (52) is mounted on an upper surface of the top plate (33) and the tension spring is mounted on a lower surface of the top plate (33).

5. The rocking mechanism of a chair as claimed in claim 4, wherein the resilient member (5) further comprises a connecting member (51) penetrating through the top plate (33), the compression spring (52) is sleeved on the connecting member (51), the upper end of the rocking base (4) extends around to form a first annular extending edge (41), the connecting members (51) are circumferentially and uniformly distributed along the first extending edge, the upper and lower ends of the connecting member (51) are provided with threaded portions (511), the threaded portion (511) at the lower end of the connecting member (51) penetrates through the first extending edge (41) and is fixed on the first extending edge (41) through threaded connection, the upper end of the connecting member (51) is fixed with a blocking member through threaded connection, and the top end of the compression spring (52) abuts against the blocking member.

6. The rocking mechanism of a chair as claimed in claim 5, wherein the top plate (33) is provided with a plurality of mounting grooves (332) for receiving the compression springs (52), the mounting grooves (332) being provided with third through holes for passing the connecting members (51), the third through holes having a diameter larger than that of the connecting members (51);

wherein, the mounting groove (332) is formed by a circle of protrusions on the upper surface of the top plate (33), or the mounting groove (332) is formed by a blind hole which is downwards concave on the upper surface of the top plate (33).

7. A rocking mechanism for a chair as claimed in claim 5, wherein the first elongate edge (41) is provided with a notch (411) in the region adjacent the support post (32).

8. The rocking mechanism of a chair as claimed in claim 1, wherein the lower face of the rocking chair (4) is convex.

9. A chair comprising a rocking mechanism of a chair according to any one of claims 1 to 8.

Images