KR20170099731A - The Operationg Apparatus for Wall Bed and Wall Bad including it - Google Patents

Abstract

The present invention relates to an operating apparatus for a storage bed, which is configured to separate and assemble a bed frame of a storage bed capable of increasing spatial utilization by being unfolded and used on the floor of a room and being erected and stored in a storage space formed in a wall, a decorative cabinet, and the like when not used, to enable transfer by an elevator and easy installation on a site, to allow stable and smooth folding of the bed and to minimize operation noise. The bed frame comprises: a main frame (10) including a center frame (11) arranged in a longitudinal direction of a bed, a pair of side frames (12) arranged in parallel with the center frame (11) on the left and right sides of the center frame (11), a plurality of transverse frames (13) connecting the center frame (11) and the side frames (12), and a coupling frame (14) connecting the side frames (12) to each other and protruding downward compared to the transverse frames (13); and a plate frame consisting of a plurality of plates independently detachably coupled to the main frame (10). The main frame (11) is rotated with respect to an operating frame (31) disposed to traverse a receiving space (50) by an electric cylinder device (30) installed in the center frame (10), such that the bed frame is folded.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation apparatus for a retractable bed,

The present invention is configured to be able to separate and assemble a bed frame of a retractable bed which can be used for unfolding to the floor of an indoor space and can be used by being stored in a storage space formed on a wall or a cabinet when not in use, The present invention relates to an operation device for a retractable bed having an electric cylinder and a shock absorber and a retractable bed including the same so that the bed can be stably and smoothly folded and operation noise can be minimized.

As urbanization progresses in recent years, the price of land in the city has risen, resulting in the construction of many houses and buildings in a narrow area, resulting in a narrower living space in the building. In particular, students who lack sufficient financial resources and beginner workers often live in a fairly small space. Specifically, a student or an office worker is accommodated in a room having a small area such as a one-room or an office-style room, thereby causing difficulties in installing furniture such as a bed, a desk, and a closet in a living space.

Among these furniture, beds are furniture that takes up a considerable space, and when installed in a small room, there is not enough room to actually live. Accordingly, in recent years, a bed is housed in a storage space formed on a wall, a cabinet, and the like, and a space in which a bed is installed is utilized as a living space.

In this way, a bed that can be spread on the floor or stored in a storage space as needed is called a retractable bed (wall bed), and the bed is rotated by connecting one side of the bed frame with a hinge.

Accordingly, the retractable bed is provided with an operating device for rotating the bed frame.

The operating device of such a retractable bed includes at least one driving device such as an electric cylinder and includes a driving unit including a plurality of link members for rotating the bed frame using the driving force of the driving device.

However, in the conventional retractable bed operating device, the driving part for rotating the bed frame is provided on the side or lower part of the frame, and most of the driving part includes more than two driving parts, If the bed frame does not match, the bed frame may not be moved naturally, may be shaken or caught, and the bed frame may be rotated only by the driving force of the driving unit to increase the capacity of the driving unit. When the bed frame is housed in the accommodation space, There is a problem that this occurs.

Meanwhile, as a result of investigation of the prior art related to the present invention, a large number of patent documents have been searched and some of them will be described as follows.

Patent Document 1 discloses a known retractable folding bed having a hinge means and a tension means which constitute a folding bed in a cabinet, and a fixed shaft exposed to one side in a case of a rectangular body in which a fastening plate having a fastening hole is formed, And a second stop surface that is grounded in a horizontal state is formed with the first stop surface where the case is vertically grounded with the inner plate and the second stop surface is formed on the fixed shaft, By tightening the hooks of the adjusting screw and the fixing rods of the stopper with one or more tension springs, it is possible to improve the disadvantages of the exposure and to prevent shocks to the cabinet or the floor during the storage or expansion of the bed, So as to prevent detachment of the bed from the left and right sides.

Japanese Patent Application Laid-Open No. 2004-325820 discloses a portable telephone comprising a rectangular storage device having a front opening, a frame accommodated in the storage device while rotating within a range of 90 degrees, a mattress resting on the top of the frame, And a leg provided at a lower portion of the frame and supporting the frame at the floor. The frame includes a bottom plate disposed toward the bottom, a side plate provided at both sides of the bottom plate, A front plate, a rear plate provided on the rear face, a frame member provided on the inner side of the side plate, the front plate and the back plate, and a plurality of reinforcing members connecting the frame members, A foot passage slot for allowing a leg to pass therethrough is formed on a bottom plate having a leg portion, A cushioning member for absorbing the impact of the frame is provided so that the bed can be easily expanded and collapsed even with a small force and the leg is automatically opened by the weight when the bed is opened to support the floor, have.

KR 20-2000-0002380 U KR 10-2015-0054107 A

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide an electric cylinder apparatus and a shock absorber provided on both sides of a bed frame, The present invention provides an operating device for a retractable bed and a retractable bed including the same.

In order to accomplish the above object, the present invention provides a retractable bed which is foldably stored in a storage space provided on a wall or a cabinet of a building when not in use, the bed frame being housed in a storage space, In the case of the operation of the retractable bed,

A frame support bracket fixed to a wall of the storage space and rotatably mounted on the side frame, An operating frame coupled to an edge portion of the frame support bracket so as to be spaced apart from the rotation center axis to allow the bed frame to rotate by an operating device; And a pair of shock absorbers installed in a center frame disposed at the center of the bed frame to rotate the actuating frame and a pair of shock absorbers installed in the side frames of the bed frame to compensate for the action of the electric cylinder unit to absorb shock and,

A driving force is applied to the operation frame by the electric cylinder device installed in the center frame so that the bed frame rotates about the frame rotation center axis so that the bed frame is folded.

According to the retractable bed operating apparatus of the present invention, the electric cylinder apparatus further comprises: a fixing bracket provided at an intermediate portion of the center frame; a driving bracket that generates driving force by a user's operation and rotatably engages with the fixing bracket, A cylinder portion that is inserted into the operation rod and is coupled to one side of the electricity generation portion and rotates together with the electricity generation portion, and a cylinder portion that is rotatably installed in the center frame And a rotation bracket to which the operation frame and the operation rod are coupled, respectively.

According to the retractable bed operating device of the present invention, the pivotal bracket is formed in an isosceles triangular shape in which a hole is formed in each vertex portion, is coupled to the center frame through an upper hole, And the operation rod and the operation frame are coupled to each other.

In addition, according to the operating device of the retractable bed of the present invention, the operating rod is coupled to the rotating bracket through a coupling hole provided at the front end.

According to the operating device of the retractable bed of the present invention, the shock absorber is configured such that one end of the shock absorber is rotatably coupled to the operation frame and the other end of the shock absorber is rotatably coupled to a rotation shaft of a bracket provided at an intermediate portion of the side frame .

According to the operating device of the retractable bed of the present invention, the shock absorber is characterized in that the rod is a gas absorber rotatably mounted on the operating frame and the cylinder member rotatably coupled to the side frame.

According to the retractable bed operating device of the present invention, the hinge shaft of the electric cylinder device and the rotary shaft of the shock absorber are positioned in a straight line.

The operation device of the retractable bed of the present invention has an effect that the folding operation of the bed can be stably and smoothly performed because the bed is folded by using the electric cylinder device installed in the center frame.

Further, according to the retractable bed operating device of the present invention, since the bed is folded by using the shock absorbers provided on the both side frames together with the electric cylinder device provided on the center frame, the backlash phenomenon is reduced and the operating noise and shock are reduced And the capacity of the electric cylinder can be reduced.

Further, according to the retractable bed of the present invention, since the rod of the electric cylinder and the operation frame are not connected directly but are connected via the rotating bracket, there is an effect that the load acting on the electric cylinder device is reduced by the principle of the lever .

In addition, according to the retractable bed of the present invention, since the support leg provided on the main frame rotates in conjunction with the operation frame by the leg operation portion including the connection rod and the bracket, the support leg is automatically opened or folded, .

1 is a conceptual view showing a retractable bed to which the present invention is applied.
2 is an exploded perspective view of a retractable bed to which the present invention is applied.
3 is a plan view of a bed frame including an apparatus for operating a retractable bed according to the present invention.
Fig. 4 is a perspective view showing a state in which an electric cylinder device as a main part of the present invention is stored. Fig.
Fig. 5 is a perspective view showing the development of an electric cylinder device which is a main part of the present invention. Fig.
6 is a configuration diagram of a rotation bracket that is a substantial part of the present invention.
7 is a configuration diagram of a cushioning member which is a main part of the present invention.
Fig. 8 is a perspective view showing a housed state of a leg operating portion which is a main part of the present invention; Fig.
Fig. 9 is a perspective view showing the development of a leg operating portion which is a main part of the present invention. Fig.
10 is a cross-sectional view showing a coupling relation between a wall, a bed frame and an operation frame according to the present invention.
Fig. 11 is a perspective view showing a state of a bed frame accommodated in the present invention. Fig.
12 is a perspective view showing a developed state of a bed frame which is a main part of the present invention;
Fig. 13 is a side view of a bed frame and a mattress according to the present invention when they are stored. Fig.
FIG. 14 is a side view of the development of a bed frame and a mattress according to the present invention; FIG.
15 is an exploded view showing a bed frame and a mattress according to the present invention.
16 is a reference view showing a coupled state of the frame member according to the present invention.
17 is a view showing a state of engagement between a main frame and a plate frame according to the present invention.

Hereinafter, an apparatus for operating a retractable bed of the present invention will be described with reference to the accompanying drawings.

1 and 2, the retractable bed according to the present invention is extended to the floor at the time of use, and when the retractable bed is not used, a storage space 55 provided in the storage unit 50 such as a wall or a cabinet of a building, And the bed frame is rotated by the operating device so as to be housed in the storage space or to be spread on the floor.

3, the operation device of the retractable bed according to the present invention is provided with a frame rotation center shaft 16 fixed to a wall 51 of the storage space 55 and provided on the side frame 12, A frame supporting bracket 15 to be installed; An operating frame (31) coupled to an edge portion of the frame support bracket (15) so as to be spaced apart from the rotation center shaft (16) and allowing the bed frame to rotate by an operating device; An electric cylinder device (30) installed in a center frame (10) located at the center of a bed frame and rotating the actuation frame (31) And a pair of shock absorbers 35 for absorbing the impact by complementing the shock absorber 35. A driving force acts on the actuating frame 31 by the electric cylinder device 30 provided on the center frame 10, The frame is rotated about the frame rotation center axis so that the bed frame is folded.

4 to 5, the electric cylinder device 30 includes a fixing bracket 33 provided at an intermediate portion of the center frame 11 and a fixing bracket 33 A motor portion 30a having a mounting protrusion 34 into which a hinge shaft 33 'is inserted so as to be rotatably coupled to the motor 30a and an operation rod 30c which is protruded and retracted by the motor portion, A cylinder part 30b which is coupled to one side of the operation part 30a and rotates together with the motor part 30a and a cylinder part 30b which is rotatably installed on the center frame 11, And a pivot bracket 32 to which the pivot bracket 32 is coupled. Of course, a hydraulic cylinder may be used in addition to the electric cylinder.

6, the pivotal bracket 32 is formed in an isosceles triangle shape having holes 32a, 32b, and 32c formed at apexes thereof, and is coupled to the center frame 11 through an upper hole 32a. And the actuating rod 30c and the actuating frame 31 are respectively coupled through the left hole 32b and the right hole 32c. At this time, it is preferable that the operation rod 30c is coupled to the rotation bracket 32 through a coupling hole 30d provided at the tip.

As described above, when the rod-side end portion of the electric cylinder 30 is connected to the operation frame 31 via the bracket 32 without being directly connected thereto, the load acting on the operation frame 31 is reduced by the leverage effect So that the main frame 10 can be smoothly rotated with respect to the operation frame 31.

7, the shock absorber 30 is rotatably coupled to the operation frame 31 and the other end is connected to the rotation shaft 36 'of the bracket 36 installed at the middle portion of the side frame 12, As shown in Fig. It is preferable that the shock absorber 35 is a gas absorber in which a rod 35b is rotatably installed in the operation frame 31 and a cylinder member 35a is rotatably coupled to the side frame 12. [

As described above, since the gas absorber is installed in addition to the electric cylinder device 30, the gas absorber absorbs the impact when the main frame 10 is deployed, so that noise is not generated, do. When the main frame 10 is housed by the electric cylinder device 30, the gas pressure is also applied to the gas absorber so that the main frame 10 can be housed with a smaller force, The capacity of the electric cylinder device 30 can be reduced.

In this case, the hinge shaft 33 'of the electric cylinder device 30 and the rotary shaft 36' of the shock absorber 35 are preferably positioned in a straight line. This is for keeping the center well when the electric cylinder device 30 and the shock absorber 35 are operated in cooperation with each other.

A pair of support legs 45 are installed on the main frame 10 so as to keep the bed horizontal after the support frame 45 is extended from the operation frame 31 by a predetermined distance And is rotatably and slidably mounted. In this case, it is preferable that a leg operating part 40 is provided to rotate the support leg 45 in conjunction with the movement of the main frame 10.

8 and 9, the leg actuating part 40 includes a connecting rod 41 for transmitting the movement of the actuating frame 31 to the supporting leg 45, A second link member 44 which is provided through the second link member 46 and serves as a rotation center of the support leg 45 and a second link member 44 which connects the operation frame 31 and one end of the connection rod 41, And a first link member 42 connecting the rotation shaft 43 to the other end of the connection rod 41.

Accordingly, when the operation frame 31 is rotated by the electric cylinder 30, the rotation shaft 43 rotates simultaneously to rotate the support leg 45 so that when the main frame 10 is deployed, When the main frame 10 is housed in the storage space 55, the support legs 45 are folded and housed in the storage space 55 so that the main frame 10 is not exposed to the outside.

10, the frame support bracket 15 is coupled to the support pin 52 provided on the wall 51 of the storage space 55 and then fixed to the support pin 52 such as a screw or anchor bolt and nut, And is fixed to the wall body 51 by a fixing member 53. At this time, the type of the fixing member 53 may be changed according to the type of the wall 51. When the wall 51 is formed on the wall surface, the fixing member 53 uses an anchor bolt and a nut When the wall 51 is part of the cabinet, a pair of nuts and a nut may be used as the fixing member 53, or a screw may be used. Particularly, when the outer surface of the wall is exposed to the outside, it is preferable to use a plate-head bolt or a screw so that the head of the bolt or the screw constituting the fixing member 53 does not protrude to the outside.

In the folding bed operating apparatus of the present invention constructed as described above, the electric cylinder apparatus installed on the center frame and the shock absorbers installed on the side frames located on both sides of the center frame are operated to fold the bed, .

11 to 17, the bed frame includes a main frame 10, which is rotatably installed in the storage space 55 and has a plurality of steel frame frames arranged vertically and horizontally, And a plate frame made of a plurality of plate members detachably and independently connected to the frame 10. [

As the bed frame is divided and formed into the main frame 10 and the plate frame, the volume and weight of the bed frame can be reduced and the elevator can be transported to the installation position, thereby improving the transportation convenience of the operator. Since the main frame 10 is made of steel and is not easily deformed even if it is used for a long time and each plate member constituting the plate frame is independently engaged with the main frame 10 without being joined to each other, The deformation does not propagate to the other plate material. Therefore, noise caused by deformation of the plate material due to long-term use is not generated.

The main frame 10 includes a center frame 11 arranged in the longitudinal direction of the bed, a pair of side frames 12 arranged in parallel with the center frame 11 on the right and left sides of the center frame 11, A plurality of transverse frames 13 connecting the center frame 11 and the side frames 12 and a plurality of transverse frames 13 connecting the side frames 12 and projecting downwardly from the transverse frame 13 14). Here, it is preferable to use a hollow square frame for the center frame 11, the side frames 12, the transverse frames 13, and the coupling frames 14.

As the number of the transverse frame 13 increases, the strength of the main frame 10 increases. However, considering the weight problem and the cost problem, if the strength of the main frame 10 can be secured, . However, in order to maintain the basic strength, a transverse frame 13 having a sufficient thickness is provided at both ends in the longitudinal direction of the main frame 10, and a transverse frame 13 having a smaller thickness is provided therebetween .

The coupling frame 14 is formed in a 'C' shape, and three side portions are attached to the lower side of the side frame 12. Specifically, it is preferable that the coupling frame 14 is installed at both ends and an intermediate portion in the longitudinal direction of the main frame 10, respectively.

 The plate frame includes a lower plate 21 coupled to a bottom surface of the main frame 10 to form a wall when the bed is received in the receiving space 55 and a lower plate 21 coupled to the outer end of the main frame 10, A side plate 23 provided on the outer side of the side frame 12 and disposed on the upper side of the main frame 10 to support the mattress 25 and fixed to the main frame 10; And an upper plate 24 which is made of a metal.

At this time, a plurality of coupling brackets 21 'coupled to the coupling frame 14 are provided on the upper surface of the lower plate 21, and the coupling brackets 21' are formed in a stepped shape with stepped portions, The lower plate 21 is fixed to the lower frame 21 and the lower frame 21 is coupled to the main frame 10 by inserting the engaging bracket 14 into the lower frame.

The front plate 22 and the main frame 10 are coupled to the main frame 10 in a sliding manner after the front plate 22 and the bottom plate 21 are coupled to each other. And the bottom plate 21 and the front plate 22 are fixed to the main frame 10 by being coupled by a fastening member such as a screw.

The side plate 23 has an inwardly bent extension portion 23 'so that the extension portion 23' is positioned on the upper side of the main frame 10, The extension 23 'is pressed by the top plate 24 when installed. That is, the side plate 23 is positioned on the side of the side frame 12 so that the extended portion 23 'is brought into close contact with the upper surface of the side frame 12, And the upper plate 24 and the side plate 23 are fixed to the side frame 12 by fastening a fastening member such as a screw from the upper side of the upper plate 24 to the side frame 12 . The side plate 23 is provided with a guide groove 23 "formed in a U-shape so that the rotation shaft 43 of the support leg 45 can be inserted into the side plate 23. Thus, You can easily find your location.

The upper plate 24 and the lower plate 21, the front plate 22 and the side plate 24 are coupled to each other so as not to form a single plate frame, So that even if deformation occurs in one plate, the deformation does not propagate to the other plate, and it is easy to install and replace them. Specifically, the lower plate 21 is slidably coupled to the coupling frame 14 of the main frame 10 using a coupling bracket 21 ', the front plate 22 is coupled to the lower plate 21, The upper plate 24 and the side plate 23 are coupled to the side frame 12 of the main frame 10 by screwing, So that it is easy to install and replace each plate as well as the initial installation work.

The main frame 10 is provided with support pins 52 each having a shape protruding to a certain extent from both side walls 51 for forming a storage space 55 in the storage portion 50 in which the bed is stored. The frame support bracket 15 provided on both sides is rotatably coupled to the support pin 52 so that the main frame 10 can be rotated with respect to the support pin 52. At this time, it is preferable that a positioning groove into which the support pin 52 is inserted is formed below the frame support bracket 15. Accordingly, when the operator attaches the main frame 10, the support pin 52 and the frame supporting bracket 15 are slidably engaged with each other, so that the main frame 10 can be easily installed

It is preferable that an escape prevention frame 26 protruding upward is provided on the rear end side of the main frame 10 to prevent the mattress 25 from being separated. Accordingly, the mattress 25 is not released to the outside of the main frame 10 in a state where the main frame 10 is unfolded on the floor or housed in the receiving space 55.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be appreciated by those of ordinary skill in the art that numerous changes and modifications can be made to the present invention without departing from the scope of the present invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

10 ... mainframe
11 ... center frame
12 ... side frame
13 ... transverse frame
14 ... combined frame
15 ... frame support bracket
21 ... bottom plate
21 '... engagement bracket
22 ... front plate
23 ... side plate
23 '... extension
23 "... guide home
24 ... top plate
25 ... mattress
26 ... escape prevention frame
30 ... electric cylinder device
30a ... electric generating portion
30b ... cylinder member
30c ... operation rod
30d ... coupling hole
31 ... working frame
32 ... pivot bracket
32a, 32b, 32c ... holes
33 ... Retaining bracket
33 '... Hinge axis
34 ... mounting projection
35 ... Shock absorber (gas absorber)
36 ... bracket
36 '... rotation shaft
40 ... leg operating portion
41 ... connection load
42 ... first link member
43 ... rotation shaft
44 ... second link member
45 ... support leg
46 ... fixed plate
50 ... compartment
51 ... wall
52 ... support pin
55 ... storage space

Claims (7)

When the bed frame is not in use, is housed in a retractable bed which is stored in a storage space 50 provided in a wall or a cabinet of a building or in a folding manner so that the bed frame can be stored in the storage space, In the operating device,
A frame support bracket 15 fixed to the wall 51 of the storage space 55 and rotatably mounted on the frame rotation center shaft 16 provided on the side frame 12; An operating frame (31) coupled to an edge portion of the frame support bracket (15) so as to be spaced apart from the rotation center shaft (16) and allowing the bed frame to rotate by an operating device; An electric cylinder device (30) installed in a center frame (10) located at the center of a bed frame and rotating the actuation frame (31) And a shock absorber (35) for absorbing the shock,
A driving force is applied to the operating frame (31) by the electric cylinder device (30) provided in the center frame (10) so that the bed frame is rotated based on the frame rotation center axis to fold the bed frame The operating mechanism of the bed. The method according to claim 1,
The electric cylinder device 30 includes a fixed bracket 33 provided at an intermediate portion of the center frame 11 and a hinge portion 33 that generates a driving force by a user's operation and is rotatably coupled to the fixed bracket 33. [ The motor unit 30a includes a motor unit 30a having a mounting protrusion 34 into which a shaft 33 'is inserted, an operation rod 30c inserted and coupled to one side of the motor unit 30a, And a rotation bracket 32 rotatably installed on the center frame 11 and coupled to the operation frame 31 and the operation rod 30c, The operating device of the retractable bed. 3. The method of claim 2,
The pivotal bracket 32 is formed in an isosceles triangle shape having holes 32a, 32b and 32c formed at apex portions thereof and is coupled to the center frame 11 through an upper hole 32a. And the operating rod (30c) and the operating frame (31) are coupled through the right hole (32c) and the right hole (32c), respectively. 3. The method of claim 2,
Wherein the operating rod is coupled to the pivot bracket through a coupling hole provided at a front end thereof. 5. The method according to any one of claims 1 to 4,
One end of the shock absorber 30 is rotatably coupled to the actuating frame 31 and the other end of the shock absorber 30 is rotatably mounted on a rotary shaft 36 'of a bracket 36 provided at an intermediate portion of the side frame 12 Lt; / RTI &
Wherein the hinge shaft (33 ') of the electric cylinder device (30) and the rotary shaft (36') of the shock absorber (35) are positioned on a straight line. 6. The method of claim 5,
Characterized in that the shock absorber (35) is a gas absorber in which a rod (35b) is rotatably installed in the operating frame (31) and a cylinder member (35a) is rotatably coupled to the bracket (36) The operating mechanism of the bed. When the bed frame is not in use, is housed in a retractable bed which is stored in a storage space 50 provided in a wall or a cabinet of a building or in a folding manner so that the bed frame can be stored in the storage space, And an operating device of the bed,
A frame support bracket 15 fixed to the wall 51 of the storage space 55 and rotatably mounted on the frame rotation center shaft 16 provided on the side frame 12; An operating frame (31) coupled to an edge portion of the frame support bracket (15) so as to be spaced apart from the rotation center shaft (16) and allowing the bed frame to rotate by an operating device; An electric cylinder device (30) installed in a center frame (10) located at the center of a bed frame and rotating the actuation frame (31) And a shock absorber (35) for absorbing the shock,
A driving force is applied to the operating frame (31) by the electric cylinder device (30) provided in the center frame (10) so that the bed frame is rotated based on the frame rotation center axis to fold the bed frame bed.

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