KR101496727B1 - A folding type chair without legs - Google Patents

Abstract

The present invention relates to a foldable type chair, which comprises a support frame 300 extending upward from a rear end of a seat 100 and a backrest 200 coupled to the front of the support frame 300, And a lower end of the support frame 300 is rotatably installed in a pair of frame assemblies 140 provided on the seat plate 100. The support frame 300 includes: Shaped structure composed of a horizontal portion 310 on which the backrest 200 is mounted and a vertical portion 320 extending downwardly from both sides of the horizontal portion 310. The vertical portion 320 is formed in a frame The frame assembly 140 is mounted in the assembly unit 140 so as to be rotatable by a hinge shaft 142. The frame assembly 140 includes a vertical portion 320, In order to elastically support the pivotal state according to the fixing and folding, And an elastic stopper portion 150 having a curved surface portion 151 protruding in a rounded curved half-hoop structure is provided. The armrest mounting portion 330 is provided on the vertical portion 320, and the armrest 400 are rotatably mounted around the center shaft 431 and the central shaft hole 331 along the upper rotating shaft hole 332 and the lower rotating shaft hole 333.

Description

{A folding type chair without legs}

More particularly, the present invention relates to a folding type chair, and more particularly, to a folding type chair having a separate structure for firmly supporting a vertical position of a support frame for supporting and fixing the backrest and a pivoting state according to folding, The present invention relates to a folding type chair, which is capable of upward rotation of an armrest while minimizing the number of components and the number of assembling processes.

It is well known that Korean people are domesticated in sitting style such as sitting on a floor with their hips directly on the floor of the room or sitting on a cushion.

In addition, recently, the domestic living culture of the people of Korea has been westernized, and there has been a tendency for the standing type of living using chairs, sofas, or beds to be gradually increasing. However, The left seat (or left chair) is available on the floor so that you can rest your back when you sit in the center so that you can have a more comfortable sitting position.

For example, in relation to the chair seat described above, Korean Utility Model No. 0250514 (issued October 19, 2001), Korean Registered Utility Model No. 0347184 (issued April 4, 2004), Korean Registered Utility Model No. 0416716 (May 2006 , Announcement of the Korean Registered Utility Model No. 0451646 (Announcement of Dec. 31, 2010), Korean Patent Publication No. 2010-129462 (Dec. 9, 2010), Korean Registered Patent No. 1157512 (Announcement of June 20, 2012) There have already been several cases.

1 and 2, the conventional chair is composed of a seat plate 1 and a back 2 extending upward from the rear end of the seat plate 1 And a structure in which a surface portion of a cushion material is formed on the body contact surface of the seat plate 1 and the backrest 2.

At this time, the backrest is coupled to the U-shaped support frame 3 by the elastic rubber combination body 5, and the support frame 3 to which the backrest 2 is fixed is fixed to the frame fixing portion 3 provided at the rear end of the left- The backrest 2 can be foldably coupled to the seat plate 1 by being rotatably installed on the seat back 4 so that it can be stored and transported in a folded state as shown in FIG. It can be conveniently used outdoors in a fishing place, etc., and also has a structure in which a plurality of left-handed chairs can be superimposed and stored in a relatively denser state when they are stacked and stored in one place, thus enabling efficient use of space.

However, in the conventional chair, the pair of frame fixing parts 4 provided at the rear end of the left side plate 1 are provided with recesses on both sides of the rear side, and shaft insertion holes are provided on both side walls, Since the lower end portion of the support frame 3 is inserted into the groove and is inserted into the shaft insertion hole of the frame fixing portions 4 and the lower end portion of the support frame 3 with bolts and nuts, The support frame 3 installed in the frame fixing part 4 is rotated only by a certain rotation angle from the seat plate part 1 inserted into the groove when the bolt is rotated around the rotation axis, It is not easy for the user to appropriately set the angle of the backrest 2 as required, and there is no structure that can firmly hold the support frame 3 so that it can not easily turn.

Conventionally, in the case of a conventional chair, the armrest is not provided for convenience of use. However, Korean Patent Laid-Open Nos. 2010-129462 and 1157512 disclose a chair with an armrest .

In the case of the foldable chair, the basic function of the armrest itself is satisfactory. However, when the user is seated on the chair or sitting upright, the direction is limited to the front, It is preferable to adopt a structure in which the armrest is rotatable because it is impossible not only to allow movement but also to use it in the case of obese persons.

However, the armrest disclosed in Korean Patent Laid-Open Publication No. 2010-129462 has a problem that the number of parts is increased and the assembly space is complicated because the armrest is rotatably installed on one side of the seat plate separately from the support frame for supporting the backrest. The armrest disclosed in the Korean Patent No. 1157512 includes an armrest fixing bracket fixedly coupled to a vertical portion of a support frame for upward rotation of an armrest while an armrest is mounted on a support frame for mounting and supporting a backrest, And an armrest that is hingedly coupled to the upper end of the coupling end via the hinge pin. This increases the number of components and increases the number of assembling steps associated with the use of a separate armrest fixing bracket.

1. Registered Utility Model No. 0250514 in the Republic of Korea (Notice on October 19, 2001: folding chair) 2. Registered Utility Model No. 0347184 (Registered on April 04, 2004, Name: Rotating Left Chair) 3. Registered Utility Model No. 0416716 of Republic of Korea (Notice: Name of Chair: Chair for chiropractor) 4. Registered Utility Model No. 0451646 in Korea Registered on 31st December 2010 (Name: Chair with dual back) 5. Korean Patent Publication No. 2010-129462 (Dec. 9, 2010, name: folding chair) 6. Korea registered patent No. 1157512 (Notice of June 20, 2012, Name: foldable chair with adjustable range of backrest)

The object of the present invention is to provide a support frame for supporting a vertical position of a backrest and supporting the backrest in a firmly supporting state The present invention is to provide a foldable chair seat having a separate elastic stopper portion.

Another object of the present invention is to provide an armrest for mounting the armrest on the support frame for supporting the backrest in order to increase the functionality of the left-hand chair, It is to provide a folding chair seat that is made possible.

According to an aspect of the present invention, there is provided a seat assembly comprising a support frame extending upward from a rear end of a seat plate and a backrest coupled to a front of the support frame, Wherein the support frame has a diaphragm-like structure composed of a horizontal part on which a backrest is mounted and a vertical part extending downwardly from both sides of the horizontal part, The frame assembly is rotatably supported by a hinge shaft within the additional frame assembly. The frame assembly is elastically supported in a vertical position of the support frame by a contact with the lower end of the vertical frame, An elastic stopper having a curved portion protruding in a curved semi-circular structure with a rounded central portion And the folding type chair is provided.

According to another aspect of the present invention, there is provided a seat assembly comprising: a support frame extending upward from a rear end of a seat plate; and a pair of frame assemblies including a backrest coupled to the front of the support frame, Wherein the support frame has a diaphragm-like structure composed of a horizontal part on which a backrest is mounted and a vertical part bent downward from both sides of the horizontal part, And an upper arm and a lower arm are mounted on the upper arm and the lower arm, respectively. The upper shaft and the lower shaft are coupled to each other. An upper rotating shaft and a lower rotating shaft are formed at one connecting portion, Around the mandrel ball has its features to provide a foldable chair-seat that rotatably along the upper ball and the lower rotary shaft axis of rotation ball mounting assembly.

According to the present invention, a lower end portion of a support frame for mounting and supporting a backrest is assembled so as to be rotatable in a pair of frame assembly portions provided on a seat plate portion, wherein a center portion of the frame assembly is rounded And the elastic stopper portion having the protruding curved surface portion is provided, whereby it is possible to firmly support the vertical position of the support frame and the pivotal state according to the folding.

In addition, according to the present invention, when the armrest is mounted on the left-hand chair for the sake of the seated person, the armrest mounting portion is provided on the vertical portion of the support frame. The center shaft hole and the central shaft of the armrest- The armrest can be pivotally mounted on the rotary shaft so that the armrest can be pivotally moved upward according to the need of the seated person, and the number of components and the number of assembling processes can be reduced as much as possible.

1 is a perspective view showing an embodiment of a chair according to the prior art;
FIG. 2 is a perspective view showing a folded state of a left-right chair shown in FIG. 1 according to the prior art; FIG.
3 is a perspective view showing a folding-type left-handed chair having an armrest according to the present invention.
Fig. 4 is a side view of a folding-type left-footed chair having the armrest shown in Fig. 3 according to the present invention; Fig.
5 is an exploded perspective view showing the structure of a seat portion of a folding-type left-footed chair according to the present invention.
6 is an exploded perspective view showing a backrest support and an armrest structure of a folding type left-footed chair according to the present invention.
FIG. 7 and FIG. 8 are views illustrating a folding state and a use state of an armrest of a folding type left and right chairs according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In order to explain the preferred embodiments of the present invention, the thicknesses of the lines and the sizes of the components shown in the attached drawings may be exaggerated or omitted for clarity and convenience of description, Terms to be given are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

It should also be noted that the expressions indicating directions and positions such as "front", "top", "top", "bottom", "downward" And is not intended to limit the structure of the foldable leg rest chair to any particular position or orientation.

3 and 4, the foldable chair seat 10 having an armrest according to the present invention includes a seat plate 100 on which a seated person can sit in a sitting form, And a backrest 200 (200a, 200b) coupled to the front of the support frame 300. The lower end of the support frame 300 is connected to the left- And a pair of frame assemblies 140 provided on the main body 100 to be coupled by a hinge shaft 142 so as to be rotatable.

According to a preferred embodiment of the present invention, as shown in FIG. 5, the left plate 100 is divided and assembled into a bottom plate 120 and a sheet plate 130 around the left plate main body 110 Structure.

The seat plate main body 110 is a part of a frame of the seat plate 100. The seat plate main body 110 is provided on both sides of the seat plate main body 110 on both sides thereof with frame assemblies (Not shown).

4 and 5, the frame assembly part 140 is a part of the frame assembly part 140 in which the end parts of both vertical parts 320 of the support frame 300, The seat plate main body 110 has a hollow space structure having a concave groove shape and has a substantially semicircular structure having a predetermined width, length and height with its front and top portions partially opened and its rear surface closed when its external shape is viewed from the side. And the hinge fastening holes 141 and 142 are formed on the frame assembly 140 such that both end portions of the support frame 300 can be pivotally mounted by a bolt- .

The reason why the front and top portions of the frame assembly 140 are opened is that the support frame 300 can be folded toward the left plate 100, The reason that the support frame 300 is closed is to support the support frame 300 so that the support frame 300 is not tilted backward any more.

The bottom plate 120 is closely adhered to the bottom surface of the seat panel main body 110 to prevent the seat back 10 from slipping on the floor. A stopper portion 150 is provided.

The elastic stopper part 150 is inserted into the frame assembly part 140 and is inserted into the vertical part 320 of the support frame 300 when the bottom plate 120 is closely attached to the bottom surface of the left- And serves to support the vertical position of the vertical part 320 of the support frame 300 elastically in relation to the rotation of the support frame 300 and the rotation state according to the folding .

That is, as shown in the figure, the elastic stopper portion 150 has a curved surface portion 151 protruding in a curved semi-circular structure with a rounded central portion. When the curved surface portion 151 protrudes from the support frame 300, So that it functions as a stopper.

4, when the support frame 300 is vertically fixed to the seat panel main body 110, the end of the support frame 300 is curved to the curved surface portion 151 of the elastic stopper portion 150, 7, in a state where the support frame 300 is folded in the horizontal direction with respect to the seat panel main body 110, the end of the support frame 300 is curved in the curved surface portion 150 of the elastic stopper portion 150, The elastic stopper 150 supports the vertical position of the support frame 300 and the rotation of the support frame 300 in accordance with the folding.

The seat plate 130 is assembled on the upper surface of the seat plate main body 110 as a portion to which the cushion seat 131 is attached for giving a sense of cushion to the seated person.

5, when the bottom plate 120 and the seat plate 130 are assembled to the seat plate main body 110, the seat plate main body 110, the bottom plate 120, the seat plate 130, The engaging projections 101 and the engaging holes 102 to be mutually engaged are formed in correspondence with the counterparts so that the engaging projections 101 and the engaging holes 102 are firmly fixed only by fitting the engaging projections 101 and the engaging holes 102 without any other fastening such as a screw So that the number of assembled parts and the assembling process can be simplified.

3, 4, and 6, the support frame 300 is a member for mounting and fixing the backrest 200. The support frame 300 is injection-molded from a synthetic resin material such as plastic having sufficient rigidity As shown in FIG. 6, a horizontal portion 310 on which the backrest 200 is mounted and a vertical portion 320 extending downwardly from both sides of the horizontal portion 310 Type structure.

Of course, the reason why the synthetic resin such as plastic is adopted as the material of the support frame 300 is considering the economical aspect in consideration of easiness of manufacturing, and the material of the support frame 300 according to the present invention is limited to the synthetic resin material And it is natural that it may be formed of a metal material.

The horizontal portion 310 of the support frame 300 is formed in the shape of a bar having a substantially rectangular cross section so that the projecting engagement portion 311 And a bolt hole is formed in the protruding engaging portion 311. A bolt (not shown) is inserted into the bolt hole, and a portion of the elastic coupling member 340 for fixing the backrest 200 is inserted As shown in Fig.

The vertical part 320 of the support frame 300 is formed in a square bar structure that extends from both sides of the horizontal part 310 and is bent slightly downward inward in the front direction. An armrest mounting portion 330 for mounting an armrest 400 to be described later is formed at a central portion of the vertical portion 320. A bottom end surface of the vertical portion 320 is formed as a horizontal end surface 322, And a photographic inclined plane 323.

The reason why the end of the vertical part 320 is formed by the horizontal end surface 322 and the inclined surface 323 is due to the contact relation with the elastic stopper part 150. The inclined surface 323 is formed by the elastic stopper And is configured to easily rotate in contact with the curved surface portion 151 of the base portion 150.

A hinge hole 321 corresponding to the hinge fastening hole 141 of the frame assembly 140 is formed at an upper portion of the end slope 323 of the vertical portion 320. The hinge hole 321, The hinge shaft 142 is assembled and connected through the hinge fastening hole 141 so that the support frame 300 is rotatably assembled and mounted in the frame assembly 140.

The backrest 200 (200a, 200b) is divided into left and right dual types. A cushioning material is formed on the front of the backrest 200, so that the backrest 200 can comfortably support the backrest 200. An elastic coupling member 340 is provided on the support frame 300, As shown in FIG.

Of course, the backrest 200 is not limited to the left and right divided dual type, and it is natural that the backrest 200 can be integrally formed.

The elastic coupling member 340 is made of a synthetic resin material having a sufficient elasticity, for example, PVC, and has one end of the elastic coupling member 340 The backrest 200 is coupled to the support frame 300 by being fastened to the protruding engaging portion 311 of the support frame 300 by bolts and both opposite ends thereof are coupled to the back surface of the backrest 200 by the fixing bolts. As shown in FIG.

According to a preferred embodiment of the present invention, an armrest (400) rotatable at a predetermined angle is mounted on the support frame (300).

As shown in FIG. 6, the armrest mounting portion 330 is formed on the upper portion of the vertical portion 320 of the support frame 300, The arm mounting portion 330 includes an upper rotation shaft hole 332 and a lower rotation shaft hole 332 symmetrically symmetrical with respect to the center shaft hole 331 at the center, A hole 333 is formed.

3 and 8, the armrests 400 are mounted on the armrest mounting portion 330 at a predetermined angle (as shown in Fig. 3 and Fig. 8), as can be seen from the normally unfolded state of the armrests 400, As shown in Fig.

As shown in FIG. 6, the armrest 400 includes a flat support structure 410 on which the arm of a seated person can be placed, and an inclined support portion 420 extending from the support portion 410 and bent at a predetermined inclination And an engaging portion 430 is formed at an end of the inclined support portion 420 so as to be in contact with the armrest mounting portion 330.

Particularly, in the coupling part 430 of the armrest 400, an upper rotation shaft 432 and a lower rotation shaft 433 are protruded from the center center shaft 431.

That is, the center shaft 431 of the armrest 400 is inserted into the central shaft hole 331 of the armrest mounting part 330, the upper rotation shaft 432 is inserted into the upper rotation shaft hole 332, And the rotary shaft 433 is inserted into the lower rotary shaft hole 333.

When the center shaft 431 and the central shaft hole 331, the upper rotation shaft 432 and the upper rotation shaft hole 332, the lower rotation shaft 433 and the lower rotation shaft hole 333 are correspondingly inserted into each other, It is a matter of course that they are fastened and fixed at respective joint portions so as not to be disengaged by separate fasteners such as nuts not shown.

Particularly, the upper rotating shaft hole 332 and the lower rotating shaft hole 333 are symmetrically formed in a half-hoop shape to provide a rotating range in which the armrest 400 can rotate at a certain angle do.

That is, when the armrest 400 rotates around the center shaft 431 and the central shaft hole 331, the upper rotation shaft 432 rotates along the slot of the upper rotation shaft hole 332, The lower rotating shaft 433 is rotated in the same rotating direction along the slot of the lower rotating shaft hole 333.

8 shows a state in which the armrest 400 according to the present invention is in a folded state. When the armrest 400 is on the left and right of the left-right chair 10, There may be an obstacle such as a table or the like in front of the seat 10 so that it may be difficult to sit or sit or sit up through the front.

At this time, the armrests 400 are rotated backward so that the armrests 400 completely move away from the lateral direction of the seatboard 100 and are positioned on both sides of the backrest 200, so that both side directions of the seatboard 100 are opened So that it can be conveniently used.

In addition, the armrest 400, which has been folded backward for the sideways movement of the armrest 400, is seated on the seat plate 100 and then rotated forward to use the armrest 400 The armrest 400 may be used in a state in which the armrest 400 is tilted backward when it is desired to move left and right during use of the armrest 400 or when the armrest 400 is interfered with when using the left- So that it can be used more conveniently.

[0060] The embodiments of the present invention described above with reference to the accompanying drawings are merely illustrative of the most preferred embodiments of the present invention in order to assist those skilled in the art to understand the present invention. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

10: left-handed chair 100:
101: engaging protrusion 102: engaging hole
110: seat plate main body 120: bottom plate
130: sheet plate 131: cushion sheet
140: frame assembly part 141: hinge fastener
142: hinge shaft 150: elastic stopper part
151: Curved portion 200:
300: Support frame 310: Horizontal part
311: projecting engaging portion 320: vertical portion
321: Hinge hole 322: Horizontal section
323: slope surface 330: armrest mounting portion
331: central shaft hole 332: upper rotating shaft hole
333: lower rotating shaft hole 340: elastic coupling member
400: armrest 410:
420: inclined portion 430:
431: center shaft 432: upper rotating shaft
433:

Claims (2)

A supporting frame 300 extending upward from the rear end of the seat 100 and a back 200 coupled to the front of the supporting frame 300, The foldable chair (10) is rotatably installed on a pair of frame assemblies (140) provided on the unit (100)
The support frame 300 has a diagonal structure including a horizontal portion 310 on which the backrest 200 is mounted and a vertical portion 320 extending downwardly from both sides of the horizontal portion 310, The portion 320 is formed in a square bar structure extending from both sides of the horizontal portion 310 and bent downwardly in a frontward inward direction,
The vertical part 320 is rotatably assembled and mounted in the frame assembly part 140 by a hinge shaft 142. The vertical part 320 is provided on the vertical part 320 with a half- And an armrest mounting portion 330 formed to have an upper rotation shaft hole 332 and a lower rotation shaft hole 333 formed to be opposed to each other,
A center shaft 431, an upper rotation shaft 432 and a lower rotation shaft 433 which are assembled to the central shaft hole 331, the upper rotation shaft hole 332 and the lower rotation shaft hole 333 of the armrest mounting portion 330, The armrest 400 formed at the coupling portion is assembled and mounted to be rotatable about the central shaft hole 431 and the central shaft hole 331 along the upper rotation shaft hole 332 and the lower rotation shaft hole 333,
In the frame assembly 140, a central portion of the frame 300 is curved so as to elastically support the vertical position of the support frame 300 and the pivoting state of the support frame 300 by contact with the bottom end of the vertical portion 320 And a resilient stopper part (150) having a curved surface part (151) protruding in a semicircular configuration.
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