Patent Application
20250017379
This application claims the priority of Korean Patent Application No. 10-2023-0089752 filed on Jul. 11, 2023, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
The present disclosure relates to seats for chairs with easy installation of a mesh fabric and a chair including the same, and more particularly, to seats for chairs with easy installation of a mesh fabric and a chair including the same, in which the mesh fabric may be tightly installed by horizontally sliding-coupling a seat front bar to a seat frame so that a user's body weight may be supported.
Recently, as living environments have become gradually westernized, the trend is that an increasing number of people spend their time sitting in a chair. In particular, office workers and students spend most of their time sitting in chairs, so they appreciate more comfortable and stable chairs, and the functional importance of chairs has become very important.
Recently, the number of consumers seeking functional chairs has increased. For example, as the functional chairs with various shapes, chairs having breathable mesh fabrics with a mesh sheet material applied to a seat, a backrest, or both the seat and the backrest are widely used.
The mesh seat in the related art is configured such that a rim of a mesh fabric is fixed along a periphery of the seat frame having a circular, elliptical, or quadrangular shape so that the mesh fabric is tensely maintained.
However, the mesh seat in the related art is assembled by fixedly installing one side of the mesh fabric to the seat frame, tensely pulling the mesh fabric, and fixing the other side of the mesh fabric to the seat frame, which makes it difficult to assemble and install the mesh fabric and increases the working time.
In particular, the tension of the mesh fabric of the mesh seat needs to be constantly maintained in order to elastically support a user's body weight. However, in the case of the mesh seat in the related art, the mesh fabric is torn by an excessive pulling force during an assembling process, which causes a product defect. Further, a difference in tension of the mesh fabric is caused by the force that pulls the mesh fabric, which makes it impossible to maintain uniform quality.
In particular, the mesh seat in the related art causes several problems in that a separate device for fixing the seat frame while pulling the mesh fabric needs to be installed.
An object to be achieved by the present disclosure is to provide a mesh seat with easy installation of a mesh fabric, in which the mesh fabric may be easily installed while tension of the mesh fabric is increased by horizontal fitting of a seat front bar to a seat frame.
Another object to be achieved by the present disclosure is to provide a mesh seat and a chair including the same, in which a mesh fabric is tightly supported, a user's thigh is supported by tension of the mesh fabric without coming into contact with a frame, and a user's thigh is not strained.
The present disclosure provides a mesh seat for chairs with easy installation of a mesh fabric, the mesh seat including: a mesh fabric; a ‘⊏’-shaped seat frame having a fitting line provided along an outer periphery thereof so that a rim end of the mesh fabric is fitted with the fitting line, the seat frame having sliding coupling parts provided inside two opposite ends thereof; and a seat front bar configured to support the seat frame so that a predetermined interval is maintained between the two opposite ends of the seat frame as coupling parts provided at two opposite ends are fitted with the sliding coupling parts of the seat frame while horizontally moving in a forward direction (F), in which when the seat front bar is horizontally coupled, the two opposite ends of the seat frame are supported while being spread in an outward direction, such that tension of the mesh fabric installed on the seat frame is adjusted so that a user's body weight is supported.
According to the present disclosure, the seat front bar is sliding-fitted with the ‘⊏’-shaped seat frame in the horizontal direction, such that the tension of the mesh fabric installed on the seat frame may be easily and automatically adjusted.
According to the present disclosure, the tension of the mesh fabric may be automatically adjusted as the seat front bar is fitted with the seat frame. The process of installing the mesh fabric may be easily performed, the mesh seats may be mass-produced, and a tension defect hardly occurs, such that a defect rate of a mesh chair product may be minimized, and the tension of the mesh fabric may be constantly maintained.
According to the present disclosure, the seat front bar is slidably coupled to the seat frame while being guided by the inclined guide portion, such that the tension of the mesh fabric may be adjusted, and the seat front bar may be easily assembled to the seat frame.
According to the present disclosure, the seat front bar is screw-coupled to the seat frame by the coupling flange by dual engagement, such that a coupling/supporting force of the seat front bar to the seat frame may be improved.
According to the present disclosure, when the tension of the mesh fabric decreases, the mesh fabric may be easily replaced and repaired only by separating the seat front bar from the seat frame.
According to the present disclosure, the front fitting line of the fitting line, with which the mesh fabric is fitted, has a ‘C’ or ‘⊏’-shaped structure rounded downward, and the seat front bar is structured to have the spacing gap G with the front fitting line, such that an elastic force of the mesh fabric may be naturally provided to a seated person, and a comfortable seating quality may be provided without applying a sense of pressure to a thigh of the seated person.
According to the present disclosure, the fitting line and the fitting groove are provided on the seat frame and the seat front bar, such that the tension of the mesh fabric may be constantly maintained and adjusted, and the seat may be replaced with not only the mesh fabric but also the seat made of a fabric material.
The above and other aspects, features and other advantages of the present device will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
The present disclosure includes a mesh fabric 10, a ‘⊏’-shaped seat frame 20 having a fitting line 23 provided along an outer periphery thereof so that a rim end of the mesh fabric 10 is fitted with the fitting line 23, the seat frame 20 having sliding coupling parts 24 provided inside two opposite ends thereof, and a seat front bar 30 configured to support the seat frame so that a predetermined interval is maintained between the two opposite ends of the seat frame as coupling parts 32 provided at two opposite ends are fitted with the sliding coupling parts 24 of the seat frame 20 while horizontally moving in a forward direction F. When the seat front bar is horizontally coupled, the two opposite ends of the seat frame are supported while being spread in an outward direction B, such that tension of the mesh fabric 10 installed on the seat frame is adjusted so that a user's body weight may be supported.
The mesh fabric 10 is made of fiber, resin, or a composite material including a mixture thereof and includes a woven fabric or knitted fabric made of a mesh sheet material having predetermined elasticity (tension) and breathability. In addition, a fixing rod (not illustrated) is installed at a rim end 11 of the mesh fabric 10 and used to fixedly install the mesh fabric 10 into the fitting line of the seat frame. In this case, the fixing rod (not illustrated) may be provided in the form of a rod or bar and made of a synthetic resin material or a metallic material. Because the installation of the fixing rod is a publicly-known technology, a detailed description thereof will be omitted.
As illustrated in
That is, as illustrated in
In order to assist in understanding the present disclosure, the pair of lateral end frames 21 and the rear end frame 22 are described as being separated. The pair of lateral end frames 21 and the rear end frame 22 may be integrated and define the single seat frame 20 instead of being separately formed and assembled.
In addition, as illustrated in
That is, the main frame 20a may include the pair of lateral end frames 21 and the rear end frame 22, and the rim frame 20b may be integrated so as to protrude along the outer peripheries of the pair of lateral end frames 21 and the rear end frame 22.
The fitting line 23 has a predetermined depth so that the rim end 11 of the mesh fabric is fitted with the fitting line 23. As illustrated in
The fitting line 23 may include the pair of front fitting lines 23a having a ‘C’ or ‘⊏’ shape and provided on outer portions of the two opposite ends of the seat frame (outer portions of the lateral end frames in the forward direction F), and the rear fitting line 23b extending from the front fitting lines 23a and formed along the outer periphery of the seat frame 20 (the outer peripheries of the pair of lateral end frames and the rear end frame). In this case, the rear fitting line 23b is connected to and communicates with upper end portions of the pair of front fitting lines 23a having a ‘C’ or ‘⊏’ shape.
In addition, the fitting line 23 may have a structure having a straight line, a curved line, or a mixture of a straight line and a curved line.
In addition, in case that the seat frame 20 includes the main frame 20a and the rim frame 20b, the rim frame 20b protrudes along the outer periphery of the seat frame 20 so that the pair of front fitting lines 23a and the single rear fitting line 23b are provided.
The two opposite ends of the seat front bar 30 are slidably fitted with and supported by the sliding coupling parts 24. As illustrated in
The two opposite ends of the seat front bar 30 are tightly fitted with the coupling grooves 25 while horizontally moving. The coupling groove 25 has a horizontal groove structure having a predetermined length.
The coupling protrusion 26 is formed along a periphery of the coupling groove 25. The coupling protrusions 26 serve to support the two opposite ends of the seat front bar 30 introduced into the coupling grooves 25 and restrict the movements of the seat front bar 30 in the upward/downward direction and the forward direction F.
In addition, as illustrated in
As described above, in case that the sliding coupling part 22 is formed to have the level difference D from the inner surface 21a of the lateral end frame, the sliding coupling part 22 and the inner surface 21a of the lateral end frame are connected by an inclined guide portion 27, such that the horizontal movement and coupling of the seat front bar 30 to the sliding coupling part 22 may be smoothly performed.
The inclined guide portion 27 has an inclined surface so that the seat front bar 30 is smoothly guided to and fitted with the sliding coupling part 22 without being caught by the level difference D when the seat front bar 30 is slidably coupled.
That is, as illustrated in
The inclined guide portion 27 configured as described above serves to guide the seat front bar 30 so that the seat front bar 30 is easily fitted with the seat frame 20 while maintaining the constant tension of the mesh fabric.
In addition, as illustrated in
For example, in case that the seat frame 20 includes the main frame 20a having the sliding coupling part 24 and the rim frame 20b having the fitting line 23, the rim frame 20b may further protrude in the forward direction F than the main frame 20a so that a spacing gap G is provided.
The spacing gap G prevents the mesh fabric 10 from coming into contact with the main frame 20a having the sliding coupling part 24 and the seat front bar 30 fitted with the sliding coupling part 24 when the mesh fabric 10 is installed on the front fitting line 23a of the fitting line. Therefore, when the user is seated on the seat frame 20 on which the mesh fabric 10 is mounted, the mesh fabric 10 may resiliently support the user's thigh without providing a sense of pressure, thereby improving the user's convenience.
In addition, as illustrated in
In addition, although not illustrated, the seat frame 20 is connected to or equipped with a seat sliding bracket for improving a convenience for the seat seat, a seat lever for adjusting sliding, and a tilting part for tilting a chair backrest.
As illustrated in
As illustrated in
That is, the seat front bar 30 is horizontally slidably coupled to the seat frame 20 having a ‘⊏’ shape, such that a ‘▭’-shaped frame structure having the space portion S therein is formed, thereby constantly maintaining the tension of the mesh fabric 10 and stably supporting the mesh fabric 10.
As illustrated in
The body part 31 is formed to have a predetermined length and serves to maintain and support a predetermined interval between the two opposite ends, i.e., the pair of lateral end frames 21 of the seat frame 20.
The body part 31 has a slit type fitting groove 31a formed in a longitudinal direction so that a rim front end 11c of the mesh fabric 10 is fitted with the slit type fitting groove 31a.
That is, in the present disclosure, the rim lateral end 11a and the rim rear end 11b of the mesh fabric are fitted with the fitting line 23 of the seat frame, and the rim front end 11c of the mesh fabric is fixedly fitted with the fitting groove 31a of the seat front bar, such that the supporting force and tension of the mesh fabric 10 are stably maintained.
In addition, in the present disclosure, four sides of the seat are fixedly supported by the fitting line 23 and the fitting groove 31a, such that the seat may be installed by being replaced with the mesh fabric or a seat made of a fabric material. That is, in the case of the mesh fabric, the mesh fabric may be sufficiently supported only by the fitting line 23 having a ‘⊏’ shape. However, in the present disclosure, the fitting groove 31a may be further provided on the seat front bar, such that the supporting force and tension of the mesh fabric may be stably maintained, or the seat may be easily replaced with the seat made of a fabric material.
In addition, as illustrated in
As illustrated in
That is, the coupling part 32 has a structure in which the sliding support part 33 having a ‘⊏’ shape is provided along the periphery of the coupling block 34, and as illustrated in
In addition, as illustrated in
As illustrated in
In addition, as illustrated in
The coupling flanges 35 allow the seat front bar 30 to be fastened to the seat frame 20 by dual engagement and screw-fastening, thereby increasing a coupling supporting force of the seat front bar 30 to the seat frame 20.
The coupling flange 35 may include an extension flange 36 having one side integrally connected to the body part 31 and having a support guide groove 38 into which the coupling protrusion 26 of the sliding coupling part is inserted, and a fastening flange 37 integrally formed at the other side of the extension flange 36 and screw-fastened to the seat front.
That is, the coupling flange 35 is configured such that the body part 31 and the fastening flange 37 are integrally connected by the extension flange 36 so that the support guide groove 38 is positioned between the body part 31 and the fastening flange 37.
The support guide groove 38 is formed such that a lower end 26b of the coupling protrusion is fitted with the support guide groove 38 in the horizontal direction, and the fastening flange 37 has one or more fastening holes 37a so that the fastening flange 37 is in surface contact with and screw-fastened to a lower surface of the seat frame 20.
In the present disclosure, in case that the coupling flange 35 is further provided on the seat front bar 30, the coupling part 32 of the seat front bar is coupled to the sliding coupling part 24 of the seat frame in the horizontal direction and screw-fastened by an assembling screw 40. Therefore, as illustrated in
According to the present disclosure configured as described above, in a state in which a rim lateral end and a rim rear end of the mesh fabric 10 are fixedly fitted with the seat frame 20, the seat front bar 30 is moved horizontally and coupled to the sliding coupling part 24 of the seat frame. As described above, when the seat front bar 30 is fitted with the seat frame 20 in the horizontal direction, the two opposite ends of the seat frame are supported by the seat front bar 30 while being spread in the outward direction, such that the tension of the mesh fabric is adjusted and maintained.
That is, a mesh seat in the related art is configured such that any one portion of a mesh fabric is coupled to a seat frame, and the remaining part is pulled and coupled to the seat frame, which makes it difficult to install the mesh fabric on the seat frame. In contrast, according to the present disclosure, the seat front bar is fitted with the seat frame in the horizontal direction in the state in which the rim lateral end and the rear end of the mesh fabric are coupled to the seat frame, such that the tension of the mesh fabric may be adjusted to support the user's body weight, a process of installing the mesh fabric may be easily performed, and the working time may be remarkably reduced.
In addition, the chair 200 according to the present disclosure may be configured such that the stationary or movable leg 110 is connected to and installed on the mesh seat 100 for a chair, and a backrest 120 is provided at a one side of the mesh seat 100.
In addition, the chair 200 according to the present disclosure may have a structure in which an armrest 130 is further connected to the mesh seat 100 for a chair.
In addition, the chair 200 according to the present disclosure may be configured such that the seat sliding bracket for improving the convenience of the mesh seat, the seat lever for adjusting the sliding, and the tilting part for tilting the chair backrest are positioned between the mesh seat 100 and the leg 110.
The present disclosure is not limited to the specific embodiment described above, various modifications can be made by any person skilled in the art to which the present disclosure pertains without departing from the subject matter of the present disclosure as claimed in the claims, and the modifications are within the scope defined by the claims.
In addition, the terms used to describe the present disclosure are used only for the purpose of distinguishing one constituent element from another constituent element and assisting in understanding the present disclosure, and the constituent elements of the present disclosure should not be limited by the terms.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2023-0089752 | Jul 2023 | KR | national |
