KR102140065B1 - Frame for chair applied with non-exposed connection structure and chair including it - Google Patents

Abstract

According to the present invention, a frame for a chair applied with a non-exposed coupling structure includes: a back plate frame including a base frame supporting a back portion of a sitter and a lower frame provided in a lower portion of the base frame; a joint bracket including a plurality of first inserting parts vertically arranged based on a vertical direction and coupled to the lower frame; and an arm frame including a plurality of second inserting parts inserted and coupled into the plurality of first inserting parts and coupled to the joint bracket, wherein one of the plurality of first or second inserting parts comprises a groove part and the other one thereof comprises a protruding part inserted and coupled into the groove part.

Description

FRAME FOR CHAIR APPLIED WITH NON-EXPOSED CONNECTION STRUCTURE AND CHAIR INCLUDING IT}

The present invention relates to a frame for a chair and a chair including the same, and more specifically, to improve the frame structure for physically supporting the chair and to assemble it by constructing such that frames are easily combined with each other without external exposure of the coupling or connection structure The present invention relates to a chair frame including an unexposed coupling structure capable of optimizing the efficiency of the process and to realize higher utility in a process such as separation, and a chair including the same.

The chair generally consists of a frame structure that forms the basic skeleton of the chair and provides a physical support structure, a seat plate that supports the lower part of the seated person, and a back plate that supports the seated part of the seated person, etc., usage, quality, specification, application field, size It is implemented in various shapes and structures according to the like.

In the case of a chair that is relatively light and simple, the frame structure is generally formed in a relatively simple form, but in the case of a high-spec chair that combines an operation mechanism unit that implements operations such as height adjustment, angle adjustment, and tilting strength adjustment, etc. The frame structure basically consists of a heavy, large skeleton structure and a relatively complex structure.

In the case of a conventional high-spec chair, it is common to simply implement the chair frame on the upper part of the operating mechanism unit. In this case, it is not a structure capable of distributing the load of the seated person as well as its own load. There is a problem that damage such as deformation or breakage is likely to occur.

In addition, since the entire frame structure supporting the body part of the seated person is simply mounted on the upper part of the working mechanism unit, the mutual coupling and working relationship between the working mechanism unit and the frame cannot be accurately reflected, thereby ergonomic behavior characteristics. It can be said that there is an inherent limitation that it cannot be implemented to have.

Furthermore, according to the embodiment, in the case of a conventional high-spec chair, the individual frame structure is realized in a form of being simply coupled through a connecting means such as a nut, a bolt, or a connecting member such as a fitting or a bracket, so as well as an assembly process, a separation process for repair, etc. There is a complicated and difficult problem.

In particular, in the case of such a conventional coupling structure, since the physical connection part mainly depends only on the fixing force of the fastening means, and the bonding force is generated only at the fastening point, when the external impact is applied or the use is frequently performed, the bonding force is weakened, resulting in problems in durability. In addition, since the connection part or the joint part is exposed to the outside, external appearance is not good, and the possibility of unnecessary contact of a user's clothing or a body part with the connection part is increased, which may cause safety problems.

The present invention was devised to solve the above-mentioned problems in the background as described above, while simultaneously exposing the frame structure for the chair, the structure accurately reflecting the working relationship with the operating mechanism unit, and the exposed portion to the outside, and simultaneously physical support. By improving the coupling structure that can be improved, the load of the occupant can be accurately and precisely distributed to further improve physical support, as well as to enable operations such as tilting and angle adjustment to be implemented with more ergonomic behavior. An object of the present invention is to provide a chair frame and a chair with an unexposed coupling structure capable of further improving the efficiency of the assembly process and the like.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by embodiments of the present invention. In addition, the objects and advantages of the present invention can be realized by a combination of the configuration and the configuration shown in the claims.

A frame for a chair to which the unexposed coupling structure of the present invention is applied to achieve the above object includes a base frame supporting a back portion of a seated person and a back frame including a lower frame provided below the base frame; A joint bracket including a plurality of first fitting portions arranged vertically based on a vertical direction and coupled to the lower frame; And a plurality of second fitting parts fitted to the plurality of first fitting parts and an arm frame coupled to the joint bracket, wherein one of the plurality of first or second fitting parts is a groove part. It is made and the other one can be configured to be made of a protrusion that is fitted into the groove.

Here, the plurality of first fitting portions of the present invention may be formed on the first surface portion facing the front of the joint bracket, and the plurality of second fitting portions may be formed on the second surface portion facing the rear of the arm frame. , When the plurality of first and second fitting parts are mutually fitted, the first surface and the second surface may be configured to face each other.

In addition, the projection portion of the present invention may be configured to have a stepped end, and for the corresponding structural implementation, the groove portion of the present invention extends in the vertical length direction so that the projection can be lowered or raised in a fitted state. It has a shape, but may be configured to be provided with an engaging space at which the stepped end is engaged in an upper or lower portion.

Depending on the embodiment, the lower frame of the present invention is extended in the vertical length direction, may include a side part of a shape protruding forward, in this case, the joint bracket of the present invention can be coupled to the side part .

Further, the joint bracket of the present invention may further include a first coupling portion formed in a lower portion of the plurality of first fitting portions located at the bottom of the first fitting portion, and an inflow hole formed in the bottom surface. The arm frame of the present invention is further configured to further include a second coupling part fitted with the first coupling part, and furthermore, the present invention provides the inlet hole with the second coupling part fitted to the first coupling part. It may be configured to further include a fastening member that flows from the lower side to the upper side and is fastened to the second coupling portion.

More preferably, the arm frame of the present invention includes a support frame having a shape in which the second fitting portion and the second coupling portion are provided at the rear and the lower front protrudes inward; An armrest frame combined with the support frame; And a seat plate engaging portion having a shape protruding from the rear of the support frame inward and coupled with the rear bottom surface of the seat plate frame. In this case, the present invention operates one or more of tilting, angle or height adjustment of the chair. It may be configured to further include a post connector for mutually coupling the operation mechanism unit and the lower front portion of the support frame.

Here, the post connector of the present invention is provided on the outside and the lower coupling portion coupled to the lower front inner side of the support frame; An axial coupling portion axially coupled with a groove portion provided on a side surface of the operation mechanism unit; And a guiding unit provided on the side of the operating mechanism unit and moving along a guide rail having a rounded slot shape, coupled to the guiding unit formed at a lower position than the shaft coupling unit.

The chair to which the unexposed coupling structure according to another aspect of the present invention is applied is a base frame supporting a back portion of a seated person, a back frame including a lower frame provided below the base frame, and vertically arranged based on a vertical direction. It includes a plurality of first fitting parts and a joint bracket coupled to the lower frame, and a plurality of second fitting parts fitted to the plurality of first fitting parts and an arm frame coupled to the joint bracket. And one of the plurality of first or second fitting portion is made of a groove portion, the other is a chair frame made of a protrusion that is fitted into the groove portion; A seat plate frame coupled to the rear of the arm frame; An operating mechanism unit that operates one or more of tilting, angle or height adjustment of the chair; And it may be configured to include a post connector for mutually coupling the operation mechanism unit and the front portion of the arm frame.

An eco-friendly adhesive-free fixed coupling device of the outer cover of the present invention for achieving another object of the present invention is a snap guider detachably coupled to a back frame or a seat frame of a chair; And a pair guider fitted to the snap guider and coupled to the inside of the outer cover covered with the back frame or the seat plate frame, wherein one of the snap guider or the pair guider has a groove structure, and the other is the It is configured to be formed of a protrusion structure that is fitted to the groove portion structure.

Here, the snap guider of the present invention specifically includes a first body coupled to the back frame or the seat frame; A groove part provided in the first body and having an opening formed outside; And a locking part formed in the groove part part, and the pair guider of the present invention specifically includes a second body coupled to the inside of the exterior cover; A protruding part provided on the second body and introduced into the opening of the groove part; And it is provided at the end of the projecting part may be configured to include a engaging portion that is engaged with the engaging portion.

Depending on the embodiment, the groove part structure and the protruding structure of the snap guider and the pair guider may be configured to be opposite to each other.

In this case, the pair guider of the present invention includes a second body coupled to the inside of the outer cover; A groove part provided in the second body and having an opening formed outside; And a locking part formed in the groove part, and the snap guider of the present invention includes a first body coupled to the back frame or the seat frame; A protruding part provided on the first body and introduced into the opening of the groove part; And it is provided at the end of the projecting part may be configured to include a engaging portion that is engaged with the engaging portion.

Here, the second body of the pair guider according to the present invention is preferably configured to be coupled along the inner portion of the stitch line of the outer cover.

In addition, the groove part of the present invention is made of a groove part lane extending in the longitudinal direction, and the protruding part is preferably configured to have a shape extending in the longitudinal direction to correspond to the groove part lane.

In order to implement a more preferred embodiment, the present invention may further include a height adjusting member made of a fabric or an elastic material extending in a direction in which the pair guider is fitted inside the outer cover, in which case the pair of the present invention The second body of the guider is configured to be coupled to the height adjustment member.

An environment-friendly adhesive-free fixed coupling device according to another aspect of the present invention includes a backrest frame supporting a back of a seated person; A seat plate frame supporting the lower part of the seated person; A snap guider coupled to the back frame or seat frame; An outer cover over the back frame or the seat frame; A cushion member disposed between the back frame and the outer cover or between the seat plate frame and the outer cover; And a pair guider coupled to the inside of the outer cover and fitted to the snap guider, in which case one of the snap guider or the pair guider is formed with a groove portion structure, and the other one is fitted with the groove portion structure. It is configured to be made of a projecting structure to be combined.

Here, the back frame of the present invention is an outer frame; And one or more crossframes interconnecting the outer circumferential frames and dividing the backboard frame into one or more section regions. In this case, the snap guider of the present invention may be configured to be coupled to the one or more crossframes. Can.

Preferably, the cushion member of the present invention is formed with at least one inner space, in which case the pair guider is configured to be fitted to the snap guider through the inner space.

For implementation in a preferred embodiment the present invention is a second snap guider coupled to the exterior member; And a second pair guider coupled to the other portion of the exterior member to which the second snap guider is not coupled and fitted to the first snap guider.

According to a preferred embodiment of the present invention, the frame of the chair has a structure that is organically coupled with an operation mechanism unit that implements operations such as tilting, angle adjustment, and height adjustment of the chair, as well as combination with the seat plate and the back frame. By improving the structure, the weight of the seat and the weight of the chair itself can be distributed more accurately and accurately, thereby realizing the physical support of the seat more effectively, and also the durability of the chair can be effectively improved.

In addition, according to another embodiment of the present invention, by applying a structure in which some parts of the chair frame are directly interlocked with the operation of the operation mechanism unit, the working relationship such as tilting and angle adjustment is optimized for various postures of the seated person, etc. It can be implemented to have engineering behavior characteristics.

In addition, in the case of the present invention, it is possible to increase the external aesthetic through structural improvement that the coupling portion of each frame is not exposed to the outside and can be more easily and clearly combined and separated. In addition, it is possible to prevent and provide an effect that can further improve the efficiency of the assembly process and the like.

The following drawings attached to this specification are intended to illustrate preferred embodiments of the present invention, and serve to more effectively understand the technical idea of the present invention together with the detailed description of the invention described below. It should not be interpreted as being limited to the matter.
1 is a perspective view showing the overall structure of a chair frame and a chair according to a preferred embodiment of the present invention,
Figure 2 is a perspective view showing the detailed configuration of a chair frame according to an embodiment of the present invention,
Figure 3 is a view showing the detailed configuration of the joint bracket according to an embodiment of the present invention,
Figure 4 is a view showing the detailed configuration of the arm frame according to an embodiment of the present invention,
5 is a view showing a coupling relationship between the joint bracket and the arm frame of the present invention,
6 is a view showing a detailed configuration of the arm frame and a poster connector according to an embodiment of the present invention,
7 is a view showing the mutual coupling relationship of the operating mechanism unit and related components of the present invention,
8 is a view showing a detailed configuration of the post connector and the operation mechanism unit of the present invention,
9 is a perspective view showing the overall structure of a fixed coupling device and a chair to which the fixed coupling device is applied according to a second preferred embodiment of the present invention,
10 is a view showing a specific structure of the snap guider according to the second preferred embodiment of the present invention;
11 is a view showing a combined structure of a pair guider and a pair guider and a snap guider according to a second embodiment of the present invention,
12 is a view showing a preferred embodiment of the outer cover with a built-in pair guider according to the second embodiment of the present invention,
13 is a view showing a coupling structure and a detailed configuration according to a second embodiment of the present invention applied to a seat plate,
14 is a view showing a structure according to another embodiment of the snap guider and the pair guider according to the second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Therefore, the embodiments shown in the embodiments and the drawings described in this specification are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, and various equivalents can be substituted at the time of this application. It should be understood that there may be water and variations.

1 and 2 is a chair frame to which the unexposed coupling structure according to a preferred embodiment of the present invention is applied (hereinafter referred to as'chair frame') 1000 and a chair to which the unexposed coupling structure is applied (hereinafter referred to as'chair') Refer to) (2000) is a diagram showing the overall structure.

1 and 2, the chair 2000 according to the present invention is provided inside the chair and functions as a basic frame of the chair (1000) (see FIG. 2), an outer cover 400, and an arm (arm) frame 300, seat plate frame 500, may be configured to include an operating mechanism unit 600 and leg unit 700.

The outer cover 400 may be made of various materials and shapes or structures depending on the embodiment, as well as the rear surface for more effectively covering the chair frame 1000 as shown in FIGS. 1 and 2. The exterior cover 430, the front upper cover 410 and the front lower cover 420 may be configured to be diversified.

The leg unit 700 may be provided with one or more wheels in a portion facing the bottom surface to facilitate movement of the chair 2000 and minimize noise generation during movement, as illustrated in FIG. 1. Of course.

As briefly mentioned above, in the recently disclosed chair, a height adjustment function of a chair using a cylinder, etc., an angle adjustment function of a seat/backrest, a tilt adjustment function, a specific angle locking function, etc. are implemented. The operation mechanism unit 600 of the present invention may be provided between the seat frame 500 and the leg unit 700 as shown in FIG. 1 as a unit in which these various functions are aggregated.

The internal structure of the operation mechanism unit 600 and the specific structure for implementing the corresponding function are well-known technologies, and are not essential features of the present invention, so detailed description thereof will be omitted.

In the following description, the Z-axis direction shown in FIG. 1 is defined as a direction corresponding to the vertical direction, and a positive (+) X-axis direction among the X-axis directions is a direction in which the user is seated, that is, a direction corresponding to the front to front. , The negative (-) direction of the X-axis will be defined as the direction corresponding to the rear or rear.

The chair frame 1000 of the present invention is configured to include a back frame 100, a joint bracket 200 and an arm frame 300, as shown in FIG. As shown in Figure 2, the back frame 100 is specifically located in the lower portion of the base frame 110 and the base frame 110 that physically supports the back of the occupant and the joint bracket 200 of the present invention to be described later ) May be coupled to the lower frame 120.

Of course, the base frame 110 and the lower frame 120 are only arbitrary divisions for increasing the efficiency of explanation, and may be physically integrated or separated.

The lower frame 120 of the present invention has a shape that extends generally in the vertical length direction (based on the Z-axis direction) as shown in FIG. 2 and the like, but protrudes to face the front direction (positive X-axis direction). It is preferably configured to include a side part (120S, see FIG. 3) having a.

In this way, when the shape of the side part 120S of the lower frame 120 is directed from the front to the square, the ease of coupling with the joint bracket 200 and the arm frame 300, which will be described later, can be further improved. Of course, even if the arm frame 300 is coupled to the lower frame 120, the arm frame 300 can naturally be accurately positioned on the left and right of the seated person.

The joint bracket 200 of the present invention is coupled to the lower frame 120 of the present invention, as shown in Figure 2, the arm frame 300 of the present invention, the joint bracket 200 is coupled to the lower frame 120. Corresponds to the configuration coupled to the joint bracket 200 in the state.

Hereinafter, the joint bracket 200 and the arm frame 300 of the present invention will be described in detail with reference to the accompanying drawings.

3 is a view showing a detailed configuration of the joint bracket 200 according to a preferred embodiment of the present invention, and FIG. 4 is a view showing a detailed configuration of the arm frame 300 according to a preferred embodiment of the present invention. .

The joint bracket 200 of the present invention is configured to be coupled to the lower frame 120, specifically the side parts 120S of the lower frame 120, and corresponds to the vertical direction (Z-axis direction) as shown in FIG. A plurality of first fitting portions 210 arranged up and down based on the direction to be formed is formed.

The plurality of first fitting portions 210 are formed on the first surface portion 200F, which is a direction (positive X-axis direction) surface portion of the joint bracket 200 facing forward. The first surface portion 200F is a portion coupled with the second surface portion 300B, which is a surface portion facing the rear (negative X-axis direction) of the arm frame 300, as will be described later, so that the adhesion strength between each other can be improved. The first surface portion 200F and the second surface portion 300B are preferably configured to face each other in a plane-to-plane (plane vs. plane).

On the other hand, the joint bracket 200 may further include the first coupling portion 220, the first coupling portion 220, as shown in Figure 3 at the bottom of the first fitting portion 210 It is formed in the lower portion (based on the Z axis) of the located first fitting portion 210.

In addition, as shown at the bottom of FIG. 3, an inlet hole 230 through which a fastening member 900 fastened from the outside flows is formed in a bottom surface portion of the joint bracket 200 of the present invention. Detailed description of the first coupling portion 220 and the inlet hole 230 will be described later.

According to the embodiment of the present invention, the joint bracket 200 of the present invention is formed by forming a space in the inner edge length direction and a stepped line 240, which is shaped to be blocked outward, as shown in FIG. It is possible to improve the ease of coupling between the 200 and the lower frame 120 and to make the aesthetic sense more elegant on the outside.

In addition, when the joint bracket 200 is coupled to the lower frame 120 through the fastening of a coupling means such as a bolt, it is preferable to configure the coupling means to be fastened in the inner direction so that the coupling site is not exposed to the outside.

Arm frame 300 of the present invention is a configuration that is coupled to the joint bracket 200 described above, as shown in Figure 4, a plurality of fitting to the first fitting portion 210 of the joint bracket 200 It includes a dog second fitting portion 310, a plurality of second fitting portion 310 is also arranged in the vertical length direction.

The first fitting portion 210 and the second fitting portion 310 may be formed in mutually corresponding shapes, such as concave/convex, groove/protrusion portions, to enable mutual coupling.

Therefore, if one of the first fitting portion 210 and the second fitting portion 310 has a shape characteristic such as a concave/groove portion, the other one may be formed in a shape of a corresponding convex/protrusion portion. In the following description, an embodiment in which the first fitting part 210 of the joint bracket 200 is formed as a groove part and the second fitting part 310 of the arm frame 300 is formed as a protruding part as in the embodiment shown in the drawings It is explained as a guide.

As described above, the second fitting part 310 of the arm frame 300 is formed on the second face part 300B, which is a face part in the direction toward the rear of the arm frame 300 (negative X-axis direction), and is a joint. When the bracket 200 and the arm frame 300 are fitted, it is configured to enter into a face-to-face contact with the first surface portion 200F facing the front of the joint bracket 200.

On the other hand, below the second fitting portion 310 located at the bottom of the second fitting portion 310 provided in the arm frame 300 is fitted with the first coupling portion 220 of the joint bracket 200 described above The second coupling part 320 is provided.

The first and second coupling parts 220 and 320 also include first and second fitting parts 210 and 310 and have shapes corresponding to each other, and in the following description, as illustrated in the drawings, the first coupling part ( 220) will be described based on the embodiment of the groove portion shape, the second coupling portion 320 is formed in the shape of a protrusion.

As described above, an inlet hole 230 is formed on the bottom surface of the joint bracket 200 so that the fastening member 900 flows into the first coupling part 220, and is fitted to the first coupling part 220. A second inflow hole 321 to which the fastening member 900 is coupled is formed in the second coupling part 320 to be coupled.

Therefore, while the second coupling part 320 is fitted to the first coupling part 220, the fastening member 900 is introduced from the bottom to the top through the inflow hole 230 to the second coupling part 320. By being fastened, the coupling between the joint bracket 200 and the arm frame 300 is fixed.

For the implementation of a more preferred embodiment, the second fitting portion 310 / protrusion 310 of the present invention is configured to have a larger diameter of the end 312 than the diameter of the body 311 as shown in FIG. 4. Thus, the second fitting portion 310 may be configured to have a stepped end as a whole. In this case, the second fitting part 310 may be implemented by forming a predetermined hole on the arm frame 300 side according to an embodiment, and a member having a stepped end portion is coupled to the coupling hole. to be.

In order to implement a structure corresponding to the stepped end-shaped second fitting portion 310, the first fitting portion 210 of the joint bracket 200, which is implemented as a groove portion, is provided as the protrusion as illustrated in the drawing. The second fitting part 310 is implemented so as to have a shape extending in a vertical longitudinal direction so as to descend or ascend in a fitted state, and further, a step difference of the second fitting part 310 in the upper or lower part It is preferable to configure so that the engaging space 211 (see FIG. 5) to which the end is engaged is formed.

5 is a view showing a mutual coupling relationship between the joint bracket 200 and the arm frame 300. Hereinafter, a relationship in which the arm frame 300 of the present invention is coupled to the joint bracket 200 will be described in detail with reference to FIG. 5 and the like.

As described above, the joint bracket 200 is coupled to the lower frame 120 located at the bottom of the back frame 100, and in this state, the arm frame 300 of the present invention is fitted to the joint bracket 200. It is composed.

When the first fitting portion 210, that is, the groove portion of the joint bracket 200 is fitted with the second fitting portion 310 (protrusion portion) as described above, the second fitting portion 310 (protrusion portion) moves up and down. It has a shape that extends in the vertical longitudinal direction to enable this.

In order to fit the arm frame 300 to the joint bracket 200, first, the second fitting portion 310 (projecting portion) of the arm frame 300, as shown in Figure 5 (a), the first fitting portion ( 210) (groove) and the second coupling portion 320 is brought closer to the first coupling portion 220.

Thereafter, as shown in FIG. 5(b), when the second fitting part 310 is fitted into the first fitting part 210 and the second fitting part 320 is fitted into the first fitting part 220, the female frame ( 300) Lower itself. As such, when the arm frame 300 descends, the stepped end 312 of the second fitting portion 310 is physically engaged to the locking space 211 of the first fitting portion 210, and the second coupling portion ( 320) is close to the first coupling portion (220).

The arm frame 300 is coupled to and fixed to the joint bracket 200 through the fitting and locking defects, and thereafter, the fastening member 900 is introduced into the inflow hole 230 to remove the second coupling portion 320. 2 By being fastened to the inlet hole 321, the coupling and fixing between the arm frame 300 and the joint bracket 200 is completed.

Like the first fitting portion 210 (groove portion) having a shape extending in the vertical length direction, the second coupling portion 320 also improves the ease of coupling of the first coupling portion 220 and the first coupling portion 220 Of course, it is preferable to configure such that a space longer than the height of the first coupling unit 220 is formed based on the vertical length direction so that the downward movement of the body is possible.

6 is a diagram showing the detailed configuration of the arm frame 300 and the poster connector 800 according to an exemplary embodiment of the present invention, and FIG. 7 is a mutual coupling of the operation mechanism unit 600 and related configurations of the present invention. It is a diagram showing the relationship.

The arm frame 300 of the present invention described above is a configuration coupled to the back frame 100 of the present invention, specifically the lower frame 120 through the medium of the joint bracket 200, specifically shown in FIG. As may be composed of a support frame (300-1) and the armrest frame (300-2) coupled to the support frame (300-1).

The support frame 300-1 is provided in a direction (negative X-axis direction) in which the second fitting portion 310 and the second coupling portion 320 described above are directed toward the rear side, and is vertical as shown in the drawing. A vertical body 300-1A having a shape extending in the longitudinal direction (Z-axis direction) and a horizontal body 300 having a shape connected or extended in a direction toward the front (positive X-axis direction) from the bottom of the body 300 -1B).

In addition, the lower front of the support frame 300-1 (front of the horizontal body 300-1B) has a shape protruding in the inner direction (Y-axis direction) as shown in the drawing, and the lower rear (horizontal body ( 300-1B) has a shape protruding in an inner direction (Y-axis direction), and a seat plate coupling portion 330 coupled to a rear bottom surface of the seat plate frame 500 is formed. The seat plate coupling portion 330 may be coupled to the rear bottom surface of the seat plate frame 500 through a predetermined fastening means 50 as shown in FIG. 7(b).

Furthermore, the present invention is an operating mechanism unit 600 and the support frame 300- for operating functions such as tilting, angle adjustment, height adjustment, locking, etc. of a chair as shown in FIGS. 6 and 7(a). The posterior connector 800 that combines the lower front portion (1) of the lower front portion (the front side of the horizontal body 300-1B) may be further included.

Through this structure and coupling relationship, the arm frame 300 of the present invention is combined with the back frame 100 to form the overall skeleton structure of the chair, and one point of the arm frame 300, specifically the support frame 300- 1) the seat plate coupling portion 330 provided at the rear of the seat plate frame 500 is physically connected to the other point of the arm frame 300, specifically the lower front portion of the support frame 300-1 is a poster connector ( 800) is configured to be connected to the operating mechanism unit 600.

That is, the arm frame 300 of the present invention is connected to the back frame 100, and in this state, a part of the arm frame 300 is a seat plate frame 500, and the other part is dual with the operating mechanism unit 600, respectively. To form a structure to be joined or connected.

As described above, the present invention is configured such that the frame structure constituting the overall skeleton of the chair is configured to be physically connected and supported to each other through different points of the chair (seat frame 500, operation mechanism unit 600) and dualized points. It is possible to more effectively disperse and support the load of itself and the occupant, thereby further enhancing physical support and durability of the chair, and more precisely and accurately implementing functions such as tilting and angle adjustment of the operation mechanism unit 600.

Hereinafter, a detailed configuration of the poster connector 800 and the operation mechanism unit 600 of the present invention and the behavior characteristics of the frame 1000 for a chair according to the present invention will be described in detail with reference to FIG. 8.

As described with reference to FIGS. 6 and 7, the poster connector 800 of the present invention corresponds to a configuration in which some points of the arm frame 300 are connected to the operation mechanism unit 600.

Specifically, the poster connector 800 of the present invention includes a lower coupling portion 810, an axial coupling portion 820, and a guiding coupling portion 840 as shown in FIG. 8.

The lower coupling portion 810 is provided on the outside of the poster connector 800 and is configured to be coupled with the inside of the lower front (the front portion having a shape protruding from the horizontal body 300-1B) of the support frame 300-1. Corresponds to

In order to increase the efficiency of the physical connection and fixed coupling and to secure the space of the guiding coupling portion 840, which is preferably provided at the lower portion, the lower coupling portion 810 is a bent groove portion line as shown in FIG. It is preferably configured.

When the arm frame 300 is coupled to the lower coupling part 810, as shown in FIG. 6, a predetermined fastening means is coupled from the inside to the outside (based on the Y-axis direction) so that the fastening part is not exposed to the outside. It is desirable to construct.

The shaft coupling portion 820 of the poster connector 800 is a configuration provided at the top of the poster connector 800, as shown in FIG. 8, the groove portion 610 and the shaft provided on the side of the operation mechanism unit 600 Corresponds to the configuration axially coupled by the fastening means 830.

That is, the shaft coupling portion 820 of the poster connector 800 is a kind of fixed end and functions as a central axis for rotational movement of the poster connector 800.

As shown in the drawing, a guide rail 620 having a rounded slot shape is formed on a side surface of the operation mechanism unit 600, and the guide rail 620 has a shape extending in the longitudinal direction (based on the Y-axis direction). Ding unit 630 is provided.

Depending on the embodiment, the guide rail 620 may be formed on both the left and right sides of the operation mechanism unit 600. In this case, the guiding unit 630 may have a left guide rail 620 and a right guide rail 620. It can be configured to form a through.

The guiding coupling portion 840 of the poster connector 800 is a configuration that is physically connected to the guiding unit 630 through a guiding fastening means 850 or the like, and a shaft coupling portion 820 functioning as a central axis of rotation is provided. It is preferable that the rotational movement (circumferential movement) to the center is provided at a lower position than the shaft coupling portion 820 in a range that can be made more smoothly.

As described above, a part of the chair frame 1000 according to the present invention is physically connected to the seat plate frame 500 and the other part is connected to the operation mechanism unit 600 through the mediation by the poster connector 800. do. Furthermore, since the connection with the operation mechanism unit 600 is physically connected by the shaft coupling by the groove portion 610 of the operation mechanism unit 600 and the guiding coupling by the guide rail 620, the seat plate of the chair and When the operation of changing the angle of the back plate is made, the entire frame 1000 for a chair can be moved more flexibly and accurately.

Hereinafter, a second embodiment of the present invention will be described in detail with reference to FIGS. 9 to 14.

9 is an eco-friendly adhesive-free fixed coupling device (hereinafter referred to as a'fixed coupling device') 3300 and a fixed coupling device 3300 of the exterior cover 3100 according to the second preferred embodiment of the present invention ( 3000) is a perspective view showing the overall structure.

The chair 3000 of the present invention includes a back frame 3200 constituting a basic skeleton structure of the chair, and according to an embodiment, it facilitates movement of the chair 3000 and the floor surface to minimize noise generation during movement. A leg unit having one or more wheels may be further included in the facing portion.

In addition, as shown in Figure 9, the height and height adjustment function of the chair using a cylinder, etc., the angle adjustment function of the seat/backrest, the tilt adjustment function, a specific angle locking function, etc. It may be provided between the units.

The outer cover 3100, 3150 is an outer member made of fabric, synthetic resin, leather, or the like, covering all or part of the back frame 3200, or as shown in FIG. 13, all of the seat plate frame 3500 or Corresponds to a member that covers a part.

In addition, between the back frame 3200 and the outer cover 3100 is made of a resilient material such as a sponge, a cushion member (3700, see FIG. 12) that flexibly and elastically supports the body part of the seated person is mediated.

The fixed coupling device 3300 of the present invention is made of a dualized object provided on each of the back cover 3200 and the exterior cover 3100, which are the internal configuration of the chair, and the exterior cover 3100 is provided through physical coupling between them. It is fixed to the back frame 3200 and the like.

The fixed coupling device 3300 of the present invention is specifically provided on the inner surface of the snap guider 3300A and the outer cover 3100 provided on the back frame 3200 and is fitted on the snap guider 3300A. It includes a pair guider (pair guider) (3300B).

The snap guider 3300A of the present invention is a structure provided in the back frame 3200, and may be provided in a plurality of different positions of the back frame 3200 according to the size and characteristics of the outer cover 3100.

9 is an example of this, and shows an example in which three snap guiders 3300A are installed on the back frame 3200, one at the center of the back frame 3200 and one at the bottom side of the back frame 3200.

In Figure 9, the snap guider 3300A of the present invention is illustrated in a straight shape extending in the longitudinal direction (Y-axis or Z-axis), but this is an example of the outer cover 3100, the back plate frame 3200, etc. Of course, it may be implemented in a rounded shape as shown in FIG. 14 in order to conform to a shape or a shape, and to variously configure a portion in which mutual coupling force is provided.

As will be described later, in particular, the pair guider 3300B, which is fastened to the snap guider 3300A, is configured to be coupled with the exterior cover 3100, and the exterior cover 3100 is made of a material such as fabric, leather, and the like, and thus combines rods with each other In order to be possible, it is preferable to be implemented with silicone or synthetic resin having flexible properties.

On the other hand, in the case of a chair with a relatively large volume, such as a conventional executive chair, in order to combine the cushion member disposed on the back plate and the outer cover as a whole, the back frame itself is implemented in a single plate shape, such as a wood material without space. It is common.

However, the present invention can be coupled to the cushion member 3700 and the outer cover 3100 to the back frame 3200 with a simple coupling structure as described above, so the back frame 3200 of the present invention as shown in FIG. The outer frame 3210 and the outer frame 3210 that provide a skeleton structure for the outer shape may be implemented as one or more cross frames 3220 that divide the back frame 3200 into one or more section areas.

When configured in this way, it is possible to mediate a cushion member, etc. differentiated for each section area, so that a more user-oriented environment can be realized, and a back panel can be implemented with a simple structure that is lighter in weight.

In this case, as illustrated in FIG. 9, the snap guider 3300A of the present invention can be coupled to the one or more cross frames 3220, and the cross frame 3220 is horizontal (Y-axis direction) as illustrated in FIG. ) Of course, it can be diversified in the diagonal direction, etc., so that the part to which the outer cover 3100 is coupled can be implemented plurally.

In the following description, the Z-axis direction shown in FIG. 9 is defined as a direction corresponding to the vertical direction, and a positive (+) X-axis direction among the X-axis directions is a direction in which the user is seated, that is, a direction corresponding to the front to front. , The negative (-) direction of the X-axis will be defined as the direction corresponding to the rear or rear.

10 is a view showing a specific structure of a snap guider 3300A according to a second preferred embodiment of the present invention, and FIG. 11 is a pair guider 3300B and a pair guider 3300B according to a second embodiment of the present invention. And a snap guider 3300A.

Hereinafter, specific configurations and functions of the snap guider 3300A and the pair guider 3300B of the present invention will be described in detail with reference to the drawings.

As illustrated in FIG. 10, the snap guider 3300A of the present invention may specifically include a first body 3310, a groove part 3320, and a locking part 3330, as shown in FIG. 11. Likewise, the pair guider 3300B of the present invention may be configured to include a second body 3410, a protruding part 3420, and a engaging part 3430.

As will be described later, the snap guider 3300A and the pair guider 3300B of the present invention are mutually coupled based on physically corresponding geometric features (convex structure vs. concave structure, groove substructure vs. protrusion structure, etc.) Have

Therefore, when one of the snap guider 3300A and the pair guider 3300B has a groove substructure (concave structure), the other can be implemented in a form having a protruding structure (convex structure), and the mutually corresponding structures are opposite to each other. Of course it can be.

Hereinafter, an embodiment of the present invention will be described in detail based on an example in which a groove structure is implemented in the snap guider 3300A and a protrusion structure is implemented in the pair guider 3300B.

The first body 3310 of the snap guider 3300A corresponds to a body coupled to the back frame 3200 or the seat plate frame 3500 (see FIG. 13), and may be formed in a plate shape extending in the longitudinal direction.

The snap guider 3300A is a fastening hole formed in the first body 3310 so that the snap guider 3300A can be detachably fixed to the back frame 3200, specifically the cross frame 3220 of the back frame 3200. It can be configured to be fixed to the back frame 3200 / cross frame 3220 through the fastening means 3312 that is fitted to the (3311).

The groove part 3320 of the snap guider 3300A is a configuration provided in the first body 3310 and may be formed to protrude so that an open portion 3321 is provided outward as shown in FIG. 10. On the inside of the groove part 3320, as shown in the drawing, a locking part 3330 through which engagement is induced is formed.

The groove part 3320 is preferably formed in plural in the first body 3310 so that the fixed coupling force with the pair guider 3300B provided in the outer cover 3100 can be extended in the longitudinal direction, and each groove part ( 3320) is preferably made of grooves having a width extending in the longitudinal direction. Depending on the embodiment, the groove part 3320 may be configured to have a shape that does not separate and extends in the entire longitudinal direction.

Snap guider 3300A, in particular, the snap guide 3300A, the engaging part 3330 is made of an elastic material so that physical coupling with the pair guider 3300B is easily implemented and its binding force can be effectively maintained within a certain threshold range. Of course, it is desirable.

As illustrated in FIG. 11, the pair guider 3300B of the present invention is configured to be physically coupled to or engaged (engaged) with the snap guider 3300A described above, and the second body 3410 of the pair guider 3300B is an exterior. It is coupled to the inside of the cover 3100.

The pair guider 3300B is preferably implemented with plastic or silicone made of a soft material or a material equivalent thereto so that sewing by a thread is possible. In this configuration, the combination with the outer cover 3100 made of fabric, leather, or the like can be more easily implemented.

The protruding part 3420 of the pair guider 3300B may be embodied in a form extending from the second body 3410 to the opening portion 3321 of the groove part 3320, which is one component of the snap guider 3300A described above. 11, the engaging part 3430 is engaged with the engaging part 3330 of the snap guider 3300A as shown in FIG.

The protruding parts 3420 and the hook of the present invention so that the physical coupling force with each groove portion 3320 made of the groove portions extending in the longitudinal direction and the supporting force by mutual coupling are enhanced and the fitting coupling can be more easily and accurately implemented The coupling part 3430 is made of one unitary member as shown in FIG. 11 and is preferably configured such that the whole has a shape extending in the longitudinal direction (in the case of FIG. 11, the Y-axis direction).

12 is a view showing a preferred embodiment of the outer cover 3100 with a built-in pair guider 3300B according to the second embodiment of the present invention.

12, the pair guider 3300B of the present invention is provided with one or more inside the outer cover 3100, the face portion facing the front of the outer cover 3100, that is, the body of the seated person It is provided on the inner side of the face portion that faces.

When the outer cover 3100 is made of a fabric or leather material, the outer cover 3100 may be embodied in a form in which individual parts are sewn together to manufacture the outer cover 3100 in a shape corresponding to a back plate or a seat plate. .

Recently, the individual parts of the outer cover 3100 are embodied in a form that enhances the aesthetics of the lines (stitch line) that are sewn to each other, and separate stitch lines to increase the external aesthetic even without the mutual sewing of the individual parts. It is also formed.

As described above, the pair guider 3300B of the present invention is a configuration that can be coupled to the inner surface of the outer cover 3100 by sewing or the like, so that the pair guider 3300B of the present invention is organically harmonized with the existing stitch line. The second body 3410 is preferably configured to be coupled along the inner portion of the stitch line of the outer cover 3100.

On the other hand, when the pair guider 3300B of the present invention is provided with one or more, since the cushion member 3700 may be divided into a plurality of interpolated regions, each of the cushion members of different shapes or heterogeneous materials may be separated from each other. The advantage that the elastic force provided by the cushion member can be diversified by providing it in another position can also be provided.

One cushioning member 3700 that is unified according to the embodiment may be provided therein. In this case, one or more internal spaces 3175, in which physical structures such as a pair guider 3300B, may be disposed to minimize physical interference therebetween. 13) is preferably configured to be formed on the cushion member 3700.

When the inner space is formed in the cushion member 3700 as described above, physical coupling of the pair guider 3300B and the snap guider 3300A can be made more effectively, and furthermore, the pair guider 3300B and the snap guider 3300A in the inner space ) Is combined so that the pair guider 3300B and the snap guider 3300A form a kind of physical wall portion, so that the separation of the cushion member 3700 can be effectively prevented.

Furthermore, when the physical coupling between the pair guider 3300B and the snap guider 3300A is made, the outer cover 3100 is pressed in the direction of the back frame 3200, so the tension of the cushion member 3700 is applied by this pressurized force. ) Is effectively promoted, the separation or clearance of the cushion member 3700 can be suppressed.

Hereinafter, an embodiment in which the snap guider 3300A and the pair guider 3300B of the present invention are implemented on the seat plate of a chair will be described with reference to FIG. 13.

Snap guider (3300A) of the present invention is fixed detachably to the seat plate frame (3500), as described above, the pair guider (3300B) of the present invention of the seat plate outer cover (3150) covering the seat plate frame (3500) It is provided on the inner surface.

Specifically, the pair guider 3300B is combined with the inner surface of the surface portion in the upper direction (based on the Z axis) as shown in FIG. 13(a) among the inner surfaces of the seat plate outer cover 3150. When configured as described above, when the pair guider 3300B is coupled to the snap guider 3300A, the upper portion of the seat plate exterior cover 3150 is pressed in the direction of the seat plate frame 3500, so that the seat plate cushion member 3170 is applied by this pressing force. ) Tension is effectively enhanced, so that the separation or clearance of the seat cushion member 3170 can be suppressed.

As described above, the pair guider 3300B of the present invention may be coupled along the upper inner surface corresponding to the stitch line 3510 of the seat plate outer cover 3150, and the pair guider 3300B according to the embodiment As shown in 13 (a) and (b), it may be implemented in a form coupled to the height adjustment member 3300C.

The height adjustment member 3300C has a shape extending in the direction in which the pair guider 3300B is fitted into the snap guider 3300A on the upper inner surface of the seat plate outer cover 3150 as shown in FIG. 13 and has fabric or elasticity. It may be made of a material.

As described above, when the pair guider 3300B of the present invention, specifically, the second body 3410 of the pair guider 3300B is coupled to the height adjustment member 3300C (by sewing or the like), the pair guider 3300B is a snap guider ( It is possible to adjust the height (based on the Z axis) that is fitted to the 3300A).

The height of the height adjustment member 3300C (based on the Z axis) is the height at which the seat cushion member 3170 is mounted, the size at which the seat cushion exterior cover 3150 presses the seat cushion member 3170, the height of the seat exposed to the outside. It can be variably set by considering changes etc. comprehensively.

In addition, as described above and shown in FIG. 13(b), the pair guider 3300B is configured to be coupled to the snap guider 3300A after passing through the inner space 3175 formed in the seat cushion member 3170 In this case, the physical coupling between the pair guider 3300B and the snap guider 3300A can be more easily implemented, and further, the separation or play of the seat cushion member 3170 can be effectively suppressed.

Of course, the height adjustment member 3300C described with reference to FIG. 13 and a configuration related thereto may also be applied to the outer cover 3100 covering the back frame 3200 described above.

14 is a view showing a structure according to another embodiment of the snap guider 3300A and the pair guider 3300B according to the second embodiment of the present invention.

As shown in FIG. 14, the second snap guider 3300A-1 has a rounded shape as a whole to be optimized for shapes or structures, such as an outer cover 3100, a back plate frame 3200, and a back plate frame 3500. It can be made and the material can also be made of an elastic material.

In addition, as described above, the second snap guider 3300A-1 and the second pair guider 3300B-1 of the present invention may be provided on the back frame 3200 and the outer cover 3100, respectively. Accordingly, each of the second snap guider 3300A-1 and the second pair guider 3300B-1 is coupled to different positions of the exterior cover 3100 according to an embodiment to close the exterior cover 3100 itself. Can also be applied.

The second snap guider 3300A-1 includes a groove part 331-1 in which an opening is formed as described above, and the second engagement part 3330-1 in the groove part 331-1 in order to enable engagement. ) Is provided.

According to the embodiment, as illustrated in FIG. 14 to enable organic coupling depending on the length or length of the exterior cover 3100, it is preferable that the second catching parts 3330-1 are provided with a plurality of different heights. Do.

The second pair guider (3300B-1) is a configuration that is fitted to the second snap guider (3300A-1) and is engaged with the second catching part (3330-1) of the second snap guider (3300A-1) at its end. A second guide coupling part 3430-1 to be coupled is provided, and substantially corresponds to the pair guider 3300B described above.

Although the present invention has been described above by way of limited examples and drawings, the present invention is not limited by this and will be described below and the technical idea of the present invention by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the equal scope of the claims.

In the above description of the present invention, since the modifiers such as first and second are only terms of a tool concept used to relatively distinguish components between each other, they are used to indicate a specific order, priority, and the like. It should be interpreted as not being a term.

The accompanying drawings and the like may be shown in a somewhat exaggerated form for emphasizing or emphasizing the technical contents of the present invention, for the illustration of the description of the present invention and examples thereof. In view of this, it should be interpreted that it is obvious that various types of modification examples may be possible at the level of those skilled in the art.

1000: chair frame of the present invention
100: back frame
110: base frame 120: lower frame
120S: Side parts
200: joint bracket
200F: first side part 210: first fitting part
211: Hanging space 220: First coupling part
230: inlet hole 240: step line
300: arm frame
300-1: Support frame 300-1A: Vertical body
300-1B: Horizontal body 310: Second fitting
311: body 312: end
320: second coupling portion 321: second inlet hole
330: seat plate coupling
400(410, 420, 430): External cover 500: Seat frame
600: operating mechanism unit 610: groove
620: guide rail 630: guiding unit
700: Leg unit 800: Poster connector
810: lower coupling portion 820: shaft coupling portion
830: shaft fastening means 840: guiding coupling unit
850: guiding fastening means 900: fastening member
3000: chair according to the second embodiment of the present invention
3100: External cover 3200: Back frame
3210: Outer frame 3220: Cross frame
3300: Fixed coupling device 3300A: Snap guide
3310: first body 3320: groove part
3330: Jam Part 3300B: Pair Guider
3410: Second body 3420: Protruding parts
3430: engaging parts 3300C: height adjustment member
3500: Seat frame 3510: Stitch line
3700: cushion member 3170: seat cushion member
3175: interior space 3300A-1: second snap guider
3300B-1: 2nd pair guider

Claims (8)

A back frame including a base frame supporting a back portion of a seated person and a lower frame provided below the base frame;
It includes a plurality of first fitting portions arranged vertically based on a vertical direction, and a first coupling portion formed below the first fitting portion located at the bottom of the plurality of first fitting portions, and coupled to the lower frame Joint brackets;
A support frame having a shape in which a plurality of second fitting parts fitted into the plurality of first fitting parts and a second coupling part fitting into the first coupling part are provided at the rear and the lower front protrudes inward, the support It includes an armrest frame coupled to the frame, and a seat frame engaging portion having a shape protruding from the rear side of the support frame to the rear bottom surface of the seat plate frame, and an arm frame coupled to the joint bracket; And
It includes a post-connector for engaging the lower front portion of the support frame and the operating mechanism unit for operating one or more of tilting, angle or height adjustment of the chair,
A frame for a chair with an unexposed coupling structure, characterized in that one of the plurality of first or second fitting parts is formed of a groove part and the other part is formed of a protrusion part fitted into the groove part. According to claim 1, The plurality of first fitting portion,
It is formed on the first surface portion facing the front of the joint bracket,
The plurality of second fitting portion is formed on the second surface portion facing the rear of the arm frame,
When the plurality of first and second fitting parts are mutually fitted, the first surface and the second surface are face-to-face. According to claim 1, wherein the protrusion,
Has a stepped end,
The groove portion,
An unexposed coupling structure characterized in that the protrusion has a shape extended in a vertical length direction so that it can descend or elevate in a fitted state, but has a locking space at which the stepped end is engaged in an upper or lower portion. Frame for the applied chair. The method of claim 1, wherein the lower frame,
It extends in the vertical longitudinal direction, and includes a side part of a shape protruding forward,
The joint bracket is a frame for a chair to which an unexposed coupling structure is applied, characterized in that it is coupled to the side parts. According to claim 1, The joint bracket,
Further comprising an inlet hole formed on the bottom surface,
In the state where the second coupling portion is fitted to the first coupling portion, an unexposed coupling structure is applied, characterized in that it further comprises a coupling member which is introduced from the bottom to the upper side through the inflow hole and is engaged with the second coupling portion. Chair frame. delete The method of claim 1, wherein the post connector,
A lower engaging portion provided on the outer side and coupled to the lower front inner side of the support frame;
An axial coupling portion axially coupled with a groove portion provided on a side surface of the operation mechanism unit; And
An unexposed coupling structure, characterized in that a guiding unit provided on the side of the operating mechanism unit and moving along a guide rail having a rounded slot shape is coupled and includes a guiding coupling portion formed at a lower position than the shaft coupling portion. Frame for the chair with applied. A base frame supporting a back portion of a seated person, a back frame including a lower frame provided at a lower portion of the base frame, a plurality of first fitting portions arranged vertically based on a vertical direction, and coupled to the lower frame It includes a joint bracket, a plurality of second fitting portions fitted to the plurality of first fitting portions, an arm frame coupled to the joint bracket, and one of the plurality of first or second fitting portions A frame for a chair made of a groove and the other one of which is formed of a protrusion fitted into the groove;
A seat plate frame coupled to the rear of the arm frame;
An operating mechanism unit that operates one or more of tilting, angle or height adjustment of the chair; And
A chair with an unexposed coupling structure including a post connector that mutually couples the operation mechanism unit and the front portion of the arm frame.

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