KR100258479B1 - Frame structure of a sofa combined with a bed - Google Patents

Abstract

PURPOSE: A frame body of a sofa using a bed is provided to supply convenient and comfortable life by simply folding and spreading the sofa using as the bed. CONSTITUTION: A body(14) installs leg units(11) and a first frame(10) having a hinge combined unit(12) formed on both sides of a frond horizontal bar of the body. A second frame(20) is mounted on a lower side of a support bracket to fold the leg, and a third frame(30) protrudes two hinge bolts(31) on both sides of the body. The leg(52) installs a horizontal bar(51) forming a penetrate hole(55) on an upper side, and a support leg(50) fixing downward protrusion portion of a par of T-shaped brackets(54) on a lower side. A hinge bracket(70) installs a lower end of a second fixing plate on both sides of a front horizontal bar(32) of the third frame, and a lower end of a first fixing plate on both sides of rear horizontal bar(23) of the second frame. A lower frame(41) contains front and rear links(42,42a), and a frame body(40) elastically installing a tension coil spring(44). A leg-folding unit(60) hinge-establishes the first and second links, and a rotating plate is rotatably installed on a lower face of middle portion in the second frame.

Description

Frame of sofa bed

The present invention relates to a frame of a sofa bed, and more specifically, to configure each frame on which the mattress is installed to be foldable, the bed to fold the frame as needed or use as a sofa to expand the bed as needed It is about frame of combined sofa.

Conventionally, there have been developed to be used as a bed or a sofa, but they are detachable part of the mattress that covers the bed frame, or the folding function is cumbersome and coarse in three to four steps, it is inconvenient to use and noise occurs, as a bed There was a drawback of being weak in load when using and changing design intentions randomly to meet various tastes of consumers.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to configure a frame of a sofa bed so that the sofa can be easily folded and retracted by a very simple operation. As a way to provide a frame of a sofa bed to enable a convenient and comfortable life.

The frame of the sofa bed according to the present invention for achieving the above object, in the frame of the sofa bed, the legs are provided on both front lower sides of the body formed of a rectangular body and the hinge coupling portion on both sides of the rear horizontal band Hinge coupling portions are formed on both sides of the front horizontal band of the main frame formed of the rectangular body and the first frame provided, and a plurality of support brackets are arranged at a predetermined interval on the lower side of the rear horizontal band, and connected to the lower side of the support bracket by a connection. The horizontal frame is horizontally installed on the upper side of the second frame and the legs are foldable, the connection between the connection, and through the hinges of the first frame hinged to one side at both ends of the horizontal Fixed downward projection of the "T" bracket having a through hole connected to the hinge coupling part of the second frame and hinged on the other side The hinged support leg, a third frame having two hinge bolts protrudingly installed on both sides of the body formed of a quadrangular body, and a first hinge and a second hinge on the upper side of the hinge bracket having an arc-shaped guide groove formed in the center thereof. The first and second fixing plates, each of which has pins installed, are installed to be spread outward, and each of the first hinge pins installed on the first and second fixing plates is hinged to both edges of the hinge bracket, and each second hinge The pin is installed in the arc-shaped guide groove, the lower end of the first fixing plate is installed on both sides of the rear horizontal stand of the second frame, the lower end of the second fixing plate and the hinge brackets are installed on both sides of the front horizontal stand of the third frame The front and the upper part is formed to be open and the front and rear links hinged to the hinge bolt of the third frame is installed on both sides of the lower frame to be hinged, one of the lower frame And a frame body in which a tension coil spring is elastically installed between the hinge bolt and the rear hinge bolt of the third frame, and a rotating plate is freely installed on the bottom of the center portion of the second frame, and the first and second links are hinged on both sides of the rotating plate. It is installed with knowledge, the distal end of the first link is hinged between the connection of the support legs, the distal end of the second link is characterized by consisting of the leg folding means installed hinged between the connection of the second frame. .

1 is a perspective view of a sofa bed equipped with the present invention.

Figure 2 is an exploded perspective view of the frame of the sofa bed according to the invention.

Figure 3 is a side view of the frame of the sofa bed according to the invention.

4A is an exploded perspective view and a plan sectional view of part “A” of FIG. 3.

5A to 5D are exploded perspective views, forward cross-sectional views, flat cross-sectional views, and side cross-sectional views of the portion “B” of FIG. 3.

6 (a) (b) (c) is a view showing the structure and the operating state of the hinge bracket.

7 is an operational state diagram showing an embodiment of the leg folding means.

8 is a side view showing another embodiment of the leg folding means.

9 (a) to (bar) is an operational state diagram of the present invention.

<Description of reference numerals for the main parts of the drawings>

10. First Frame 11. Leg 12. Hinge Coupling

13. Rear horizontal stand 14. Main body

20. Frame 2 21. Body 22. Front horizontal stand

23. Rear horizontal stand 24. Hinge coupling 25. Support bracket

26. Bridge 27. Connection

30. 3rd frame 31. Hinge bolt 32. Front horizontal stand

33. Body

40. Frame body 41. Lower frame 42, 42a. Front and rear link

43. Support 44. Tension coil spring

50. Supporting leg 51. Horizontal bar 52. Leg

53. Between Connections 54. "T" Bracket 55,55a. Through

60. Leg folding means 61. Swivel plate 62,63. 1st, 2nd link

70. Hinge bracket 71,74. 1st, 2nd fixed edition 72,73. 1st, 2nd hinge pin

75. Hinge plate 76. Circular guide groove

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

As shown in FIGS. 1 to 7, the frame of the sofa bed according to the present invention includes a first frame 10, a second frame 20, and a first frame in front of the frame body 40 having the front and the upper portion thereof open. The three frames 30 are freely installed, and the support legs 50 are foldably installed between the first frame 10 and the second frame 20, and the second frame 20 and the third frame ( 30 is connected to the hinge bracket 70 to be folded.

The first frame 10 has leg portions 11 installed downward on both front lower sides of the main body 14 formed of a quadrangular body, and hinge coupling portions 12 are formed on both sides of the rear horizontal base 13.

In addition, the second frame 20 has hinge coupling portions 24 formed at both sides of the front horizontal stage 22 of the main body 21 formed of a quadrangular body, and at least two or more lower sides of the rear horizontal stage 23. Support brackets 25 are arranged at regular intervals, and the lower side of the support bracket 25 is provided with a leg (26) connected to the connecting rod 27 is foldable.

At this time, the support bracket 25, as shown in Figure 5, the upper surface of one side of the support bracket 25 is welded to the bottom of the rear horizontal stage 23, the other side of the development of the frame of the sofa bed of the present invention When the front horizontal stage 32 of the third frame 30 is mounted on the support, "W" in the reference numerals are welded joints. In addition, the third frame 30 is provided with two hinge bolts 31 protruding from both sides of the main body 33 formed of a rectangular body.

In addition, the frame body 40 is formed to open the front and the upper portion and the front and rear links 42, the front end is hinged to the hinge bolt 31 of the third frame 30 on both sides of the lower frame (41). ) 42a are installed to rotate in a hinged manner, and a tension coil spring 44 is elastically installed between one side of the lower frame 41 and the rear hinge bolt 31 of the third frame 30. have.

In addition, the support leg 50 has a horizontal bar 51 is horizontally installed on the upper side of the leg 52 connected by the connecting rod 53, the both ends of the horizontal bar 51 shown in Figure As shown, the through hole 55 hingedly connected to the hinge coupler 12 of the first frame 10 on one side and the through hole hingedly connected to the hinge coupler 24 of the second frame 20 to the other side. The downward projection of the " T " bracket 54 having formed 55a is fixedly installed.

In addition, the hinge bracket 70 has a first fixing plate 71 and a first fixing plate 71 formed on a rear surface of the hinge bracket 75 in which an arc-shaped guide groove 76 having a shape of “八” is formed at the center thereof, as shown in FIGS. 5 and 6. The two fixing plates 74 are hingedly installed so as to be folded in a 90 ° angle range, respectively.

That is, the first and second fixing plates 71 and 74 are respectively provided with first and second hinge pins 72 and 73 on the upper side and the first and second fixing plates 71 and 74 respectively. Each of the installed first hinge pins 72 is hinged at both corners of the hinge bracket 75, and each second hinge pin 73 is installed in the arc-shaped guide groove 76, the first fixing plate Lower ends of the 71 are installed on both sides of the rear horizontal stand 23 of the second frame 20, and lower ends of the second fixing plate 74 are installed on both sides of the front horizontal stand 32 of the third frame 30. do.

In addition, in the present invention according to the embodiment, the leg folding means 60, as shown in Figures 2 and 7 is provided with a rotating plate 61 is rotatably installed on the bottom of the central portion of the second frame 20, One end of each of the first and second links 62 and 63 is hinged on both sides of the rotating plate 61, and the distal end of the first link 62 is connected between the support legs 50. 53 is hingedly installed, and the distal end of the second link 63 is hingedly installed in the connecting section 27 of the second frame 20 so that the legs 52 and the second of the support leg 50 are second. The legs 26 provided below the frame 20 are equally folded.

Meanwhile, another embodiment of the leg folding means 60 shown in FIG. 8 allows the legs 52 of the support legs 50 and the legs 26 installed on the lower side of the second frame 20 to be equally folded. The same thing is used, but the structure which folds the leg 52 of the support leg 50, and the leg 26 provided in the lower side of the 2nd frame 20 is different. In other words, the leg folding means 60 according to the other embodiment is provided with hinges of the link 64 on one side of both sides of the "T" bracket 54 and the leg 26 of the second frame 20, respectively. have.

Looking at the effects of the present invention configured as described above are as follows.

1 and 3 is a state in which the frame of the sofa bed of the present invention is expanded, this state can be used as a bed, in this state can be used as a sofa by folding the frame of the sofa bed, of the sofa bed A process of folding the frame will be described with reference to FIG. 9.

First, when lifting the front end of the first frame 10, the first frame 10 by the "T" bracket 54 is installed hingedly connected between the first frame 10 and the second frame 20. And the second frame 20 are respectively retracted inward, and when the first frame 10 is continuously lifted, both legs 52 and 26 installed at both lower ends of the second frame 20 are folded. It is folded by the means 60 and folded in a straight state as shown in FIG.

At this time, the first frame 10 and the second frame 20 retracted inward with respect to the "T" -type bracket 54 to the first frame (B) on both sides of the "T" -type bracket 54. 10) and inner portions of the second frame 20, that is, adjacent portions of the first frame 10 and the second frame 20 are hinged to each other, so that the first frame 10 and the second frame ( 20 is retracted inwardly around the "T" -shaped bracket 54, and in this process, the legs of the support leg 50 are reduced while the internal angles of the first frame 10 and the second frame 20 are reduced. 52 is folded to the bottom surface side of the second frame 20 of the leg folding means 60 is installed hinged between the leg 52 of the support leg 50 and the leg 26 of the second frame 20. By the action, both legs 52 and 26 are folded in a straight state as shown in FIG.

Description of the operation of the leg folding means 60, as shown in Figure 7 in the process of lifting the first frame 10 is reduced as the cabinet between the bottom of the second frame 20 and the leg 52 is reduced. The first link 62 is pushed toward the leg 26 of the rear second frame 20 so that the rotating plate 61 connected to the link first 62 rotates clockwise.

As described above, when the rotating plate 61 rotates, the second link 63 hinged to the side opposite to the first link 62 is pulled by the legs 52 of the support legs 50 so that both legs 52 are rotated. As the 26 is retracted inward, it is folded in a straight state.

When both legs 52 and 26 are folded in a straight state as described above, the two legs 52 and 26 are brought into contact with the bottom surface of the second frame 20, and the first frame 10 is brought into contact with the bottom of the second frame 20. As the frame body 40 is continuously folded, both legs 52 and 26 are disposed between the bottom of the first frame 10 and the bottom of the second frame 20 as shown in FIG. Folded in a state of being stuck.

As described above, when the two legs 52 and 26 are folded between the bottom of the first frame 10 and the bottom of the second frame 20, the bottom and the bottom of the first frame 10 are folded. The bottom surfaces of the two frames 20 are in contact with each other with the two legs 52 and 26 interposed therebetween. Thus, when the first frame 10 and the second frame 20 are folded to be horizontal, The folded first and second frames 10 and 20 and the third frame 30 are placed in a horizontal state.

When the first and second frames 10 and 20 and the third frame 30 are placed in a horizontal state, the second frame 20 may be formed by the hinge action of the hinge bracket 70 illustrated in FIG. 6. As the first and second frames 10 and 20 and the third frame 30 are placed in a horizontal state as they are rotated 180 ° above the three frames 30, (a) (b) of FIG. The operation state of the hinge bracket 70 is shown in (c).

The hinge bracket 70 has an operating state in which the first fixing plate 71 pivots upward with respect to the first hinge pin 72 as the second frame 20 pivots upward, and the first fixing plate 71 is 90 degrees. After the rotation is unfolded by the rotation, the hinge bracket 75 pivots upward with respect to the first hinge pin 72 of the second fixing plate 74 by the second frame 20 continuously rotating upward. It will rotate 180 ° to fully unfold.

As described above, when the hinge bracket 70 is fully rotated by 180 ° rotation, the first and second frames 10 and 20 and the third frame 30, which are folded together as shown in FIG. The upper side of the 40 is placed in a horizontal state, and in such a state, when the first frame 10 is pushed downward, the hinge bolt 31 of the third frame 30 and the lower frame 41 of the frame body 40 are placed. Each of the front and rear links 42 and 42a, which are installed in a hinged manner, respectively, rotates downwardly, and the first frame 10, the second frame 20, and the third frame 30, which are folded to touch each other, As shown in (e) of FIG. 9, the frame body 40 is completely folded while descending into the frame body 40.

Thus, when the frame of the sofa bed according to the present invention is completely folded, the hinge bolts 31 protruding on both sides of the third frame 30 is in the vertical portion 45 vertically installed in front of the frame body 40. The first frame 10, the second frame 20, and the third frame 30 in the folded state no longer go out, and when fully folded, it can be used as a sofa.

If you want to use as a bed while completely folded as described above, if you unfold in the reverse order of the folding when the bed frame of the sofa bed of the present invention can be used as a bed, the bed was folded as described above When unfolding the frame of the combined sofa for the first time, when the first frame 10, which is folded, is pulled forward while being pulled forward, it is elastically unfolded by the elastic restoring force of the tension coil spring 44 that has been stretched.

In addition, according to another embodiment of the present invention, the leg folding means 60 may be operated by lifting the first frame 10 as shown in FIGS. 8 and 9 (b). And the inner frame of the second frame 20 is reduced so that both legs 52 and 26 are hingedly linked by the link 64 between one side of the " T " bracket 54 and the leg 26. It is completely folded.

As described above, the frame of the sofa bed according to the present invention can be easily folded and unfolded when the frame of the sofa bed of the present invention is simply folded and lifted by lifting and pulling the first frame located at the tip of the present invention. It is possible to use a sofa bed simply and comfortably by losing.

Claims (2)

In constructing the frame of the sofa bed, A first frame 10 having leg portions 11 installed at both front lower sides of the body 14 formed of a quadrangular body and having hinge coupling portions 12 at both sides of the rear horizontal stand 13; Hinge coupling portions 24 are formed at both sides of the front horizontal stage 22 of the body 21 formed of a quadrangular body, and at least two support brackets 25 are arranged at predetermined intervals below the rear horizontal stage 23. It is installed, the lower side of the support bracket 25, the second frame 20 is installed so that the leg 26 is connected to the connecting rod 27 to be folded, Horizontal bar 51 is horizontally installed on the upper side of the bridge 52 connected by the connecting rod 53, the hinge coupling portion 12 of the first frame 10 on one side at both ends of the horizontal bar (51) ) And a through hole 55 hingedly connected, and a through hole 55a hingedly connected to the hinge coupler 24 of the second frame 20 on the other side thereof, and a downward protrusion downwardly downward. A support leg 50 having a fixed downward projection of a pair of formed " T " brackets 54, A third frame 30 having two hinge bolts 31 protruding from both sides of the main body 33 formed of a quadrangular body, First and second fixing plates 71 in which first and second hinge pins 72 and 73 are respectively provided on the rear side of the hinge bracket 75 having an arc-shaped guide groove 76 having a shape of 八 in the center. ) 74 to be spread outwardly, each of the first hinge pins 72 installed on the first, second fixing plate 71, 74 is hinged on both sides of the hinge bracket (75). , Each second hinge pin 73 is installed in the arc-shaped guide groove 76, the lower end of the first fixing plate 71 is installed on both sides of the rear horizontal stage 23 of the second frame 20, The lower end of the second fixing plate 74 and the hinge bracket 70 is installed on both sides of the front horizontal stage 32 of the third frame 30, The front and upper portions are formed to be open, and the front and rear links 42 and 42a, which are hingedly coupled to the hinge bolts 31 of the third frame 30, are hinged on both sides of the lower frame 41. It is installed so that, between the one side of the lower frame 41 and the rear side hinge bolt 31 of the third frame 30, the tension main body 44 is elastically installed frame body 40, Rotating plate 61 is freely installed on the bottom of the center portion of the second frame 20, and the first and second links 62 and 63 are hinged on both sides of the rotating plate 61, respectively. The distal end of the first link 62 is hinged to the connecting rod 53 of the support leg 50, and the distal end of the second link 63 is hinged to the connecting rod 27 of the second frame 20. The frame of the sofa bed combined, characterized in that consisting of the leg folding means 60 is installed. In constructing the frame of the sofa bed, A first frame 10 having leg portions 11 installed at both front lower sides of the body 14 formed of a quadrangular body and having hinge coupling portions 12 at both sides of the rear horizontal stand 13; Hinge coupling portions 24 are formed on both sides of the front horizontal stage 22 of the body 21 formed of a quadrangular body, and at least two support brackets 25 are arranged at predetermined intervals below the rear horizontal stage 23. It is installed, the lower side of the support bracket 25, the second frame 20 is installed so that the leg 26 is connected to the connecting rod 27 to be folded, Horizontal bar 51 is horizontally installed on the upper side of the bridge 52 connected by the connecting rod 53, the hinge coupling portion 12 of the first frame 10 on one side at both ends of the horizontal bar (51) ) And the downward projection of the "T" type bracket 54 formed by hinge 55 and the other side of the hinge coupling portion 24 of the second frame 20 and the through hole 55a installed in a hinged manner. The support leg 50 is fixedly installed, A third frame 30 having two hinge bolts 31 protruding from both sides of the main body 33 formed of a quadrangular body, First and second fixing plates 71 in which first and second hinge pins 72 and 73 are respectively provided on the rear side of the hinge bracket 75 having an arc-shaped guide groove 76 having a shape of 八 in the center. ) 74 to be spread outwardly, each of the first hinge pins 72 installed on the first, second fixing plate 71, 74 is hinged on both sides of the hinge bracket (75). , Each second hinge pin 73 is installed in the arc-shaped guide groove 76, the lower end of the first fixing plate 71 is installed on both sides of the rear horizontal stage 23 of the second frame 20, The lower end of the second fixing plate 74 and the hinge bracket 70 is installed on both sides of the front horizontal stage 32 of the third frame 30, The front and upper portions are formed to be open, and the front and rear links 42 and 42a, which are hingedly coupled to the hinge bolts 31 of the third frame 30, are hinged on both sides of the lower frame 41. It is installed so that, between the one side of the lower frame 41 and the rear side hinge bolt 31 of the third frame 30, the tension main body 44 is elastically installed frame body 40, It is characterized in that the link 64 is hinged between the one side of the two sides of the "T" type bracket 54 and the predetermined position of the leg 26 of the second frame 20, characterized in that consisting of a folding means (60) The frame of the sofa bed.

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