KR102136894B1 - Easy-to-change bed for mattress cover replacement - Google Patents

Abstract

The present invention relates to an elevating bed that is easy to replace the mattress cover, and more specifically, by replacing the mattress cover by lifting the frame of the bed so that the mattress corner is exposed, so that the mattress cover can be easily replaced without lifting the mattress. It's about an easy elevating bed.
The easy to replace the mattress cover according to the present invention includes a base frame having a square frame; A lifting frame installed inside the base frame to ascend and descend; A mattress which is mounted on the upper portion of the elevating frame but is installed so that the lower edge of the corner portion does not contact the elevating frame; A lift installed between the base frame and the elevating frame to elevate the elevating frame; It includes.
The mattress cover, which is easy to replace the mattress cover made of such a structure, also moves the mattress on the mattress as the elevating frame supporting the mattress is elevated, and the mattress covers the bottom of the mattress, so the rubber band of the mattress cover is mattress Since it can be easily hanged at the bottom of the corner, it is easy to replace the mattress cover without effort.

Description

Easy-to-change bed for mattress cover replacement}

The present invention relates to an elevating bed that is easy to replace the mattress cover, and more specifically, by replacing the mattress cover by lifting the frame of the bed so that the mattress corner is exposed, so that the mattress cover can be easily replaced without lifting the mattress. It's about an easy elevating bed.

In general, a bed is made of furniture for a person to sleep, a horizontally provided square frame, a headboard vertically installed at one end of the frame, a mattress having a cushion installed on the upper part of the frame, and a lower part of the frame It is composed of a number of legs provided.

In addition, the mattress cover is spread on the upper surface of the mattress to replace it when it is contaminated. The mattress cover is provided with a rubber band at the corner of the mattress cover to hang on the mattress corner to prevent wrinkles or dragging of the user's back. Therefore, the mattress cover does not move despite the user's movement, and thus the cleanly spread state is maintained.

However, in order to replace the mattress cover, the corner of the mattress needs to be lifted, and it is very heavy because it has a metal cushion such as a spring inside the mattress. In particular, the springs that are bound to each other inside have a property of maintaining a horizontal state, so when lifting a part, the reaction force is considerable. In order to replace one mattress cover as described above, since eight corners of the mattress must be lifted a total of eight times, an adult male also has a very difficult problem.

KR Registered Utility Model Publication No. 20-0167819 (1999.11.04) KR Registered Utility Model Publication No. 20-0325738 (2003.08.27)

Accordingly, the present invention was devised to solve the problems as in the prior art, and the mattress cover is easily replaced by a mattress cover that can be easily replaced without a great effort by keeping the mattress automatically lifted and lifted. The purpose is to provide a descending bed.

The mattress cover according to the present invention for achieving the above object is easy to replace the lifting bed,

Base frame with square frame;

A lifting frame installed inside the base frame to ascend and descend;

A mattress which is mounted on the upper portion of the elevating frame but is installed so that the lower edge of the corner portion does not contact the elevating frame;

A lift installed between the base frame and the elevating frame to elevate the elevating frame; Characterized in that it includes.

In addition, the mattress is characterized in that when the elevating frame is lowered and placed on the same horizontal line as the base frame, it is placed on the elevating frame and the base frame.

In addition, the lift is made of a screw jack, it is characterized in that a motor is provided on one side of the screw jack, the motor is connected to the screw rod with a reducer, and a controller is provided to control the driving of the motor.

In addition, the elevating frame is characterized in that the power is cut off by installing the first limit switch and the second limit switch so that the elevating frame is positioned at the set elevating and descending heights.

In addition, the slider is installed on the edge of the elevating frame to appear and go;

A locking piece that is axially coupled to the tip of the slider and rotated, so that the rubber band of the mattress cover is hung when horizontal;

It is axially coupled and rotated on the elevating frame, and is composed of a first end protruding in the vertical direction from the shaft and a second end protruding in the horizontal direction from the shaft, and the first end is in close contact with the rear end of the slider to rotate the slider. A forward turn;

One end is connected to the slider, the other end is connected to the elevating frame, the spring for returning the advanced slider to the rear;

A first stopper which is installed on the elevating frame and is located at the rear of the pivot, thereby limiting the rotation range of the pivot by being engaged with the pivot to rotate backward;

A second stopper installed on the base frame so that the second end of the pivoting table is caught and rotated when the elevating frame is elevated; It is characterized by consisting of.

In addition, the second stopper is axially coupled to a support that is fixed to the base frame and rotates in a vertical direction, but its end is engaged by a locking jaw located on the same horizontal line so as not to rotate more than horizontal, and to a torsion spring installed on the shaft. It characterized in that the end to be in close contact with the locking jaw.

The mattress cover easy to replace the mattress cover according to the present invention, as the elevating frame supporting the mattress elevates, the mattress placed thereon also elevates, and the mattress covers the bottom of the mattress, thereby exposing the rubber band of the mattress cover to the mattress corner. Since it can be easily hooked to the bottom, it is effective to easily replace the mattress cover without difficulty.

Figure 1 is a perspective view showing the structure of the easy to move the bed mattress cover according to the present invention.
Figure 2 is a perspective view showing the internal structure of the mattress cover easy to replace the elevating bed according to the present invention.
Figure 3 is a cross-sectional side view of the easy to move the mattress cover according to the present invention.
Figure 4 is a side cross-sectional view showing a state of the mattress of the elevation bed is easy to replace the mattress cover according to the present invention.
5 is a bottom perspective view of an enlarged main portion showing a corner portion of a mattress according to the present invention.
6A to 6H are enlarged cross-sectional views of main parts showing a structure of an elevating bed for easy replacement of a mattress cover according to another embodiment of the present invention.
Figure 7 is an enlarged perspective view of the main portion showing the state of Figure 6g.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the lifting bed for easy replacement of the mattress cover according to the present invention will be described in detail.

1 is a perspective view showing the structure of the bed for easy mattress cover replacement according to the present invention, Figure 2 is a perspective view showing the internal structure of a bed for easy mattress cover replacement according to the present invention, 3 is a side cross-sectional view of the elevating bed easy to replace the mattress cover according to the present invention, Figure 4 is a side cross-sectional view showing the state of the mattress of the elevating bed easy to replace the mattress cover according to the present invention, 5 is a bottom perspective view of an enlarged main portion showing a corner portion of a mattress according to the present invention.

As shown in these drawings, the mattress cover easy to move up and down the bed according to the present invention includes a base frame 10 having a square frame; The base frame 10 is installed inside the elevating frame 20 to elevate; A mattress 30 mounted on the upper portion of the elevating frame 20 but the lower portion of the corner portion is installed so as not to contact the elevating frame 20; A lift 40 installed between the base frame 10 and the elevating frame 20 to elevate and elevate the elevating frame 20; It includes.

The base frame 10 is of the same upper frame 11 and lower frame 12 of a square shape, and the support 13 and the lower frame 12 interposed between the upper frame 11 and the lower frame 12 It is composed of a leg 14 provided at the bottom.

The upper frame 11 and the lower frame 12 are formed in a rectangular shape, but are horizontally installed at predetermined intervals, and the support 13 interposed between the upper frame 11 and the lower frame 12 is vertically By being provided with multiple welding, the upper frame 11, the lower frame 12, the support 13, and the legs 14 are all integrated.

And the upper frame 11 leaves the space therein so that the elevating frame 20 can be positioned inside the upper frame 11, and the lower frame 12 is provided with a plurality of reinforcing frames 15 The durability of the base frame 10 is reinforced. On the other hand, the legs 14 are provided vertically on the lower frame 12 so that a space is formed between the lower frame 12 and the floor when installed on the floor. The head plate 16 is vertically fixed to one end of the base frame 10.

The elevating frame 20 is installed inside the upper frame 11 of the base frame 10 and is formed in the same shape as the upper frame 11 of the base frame 10, but smaller than the upper frame 11 To be inserted into the upper frame (11). The lifting frame 20 is provided with a plurality of reinforcement frames 25 to prevent the lifting frame 20 from being deformed.

The mattress 30 is mounted on the upper portion of the elevating frame 20, is formed of a hexahedron having a predetermined height, and a cushioning material is installed therein. The mattress 30 is formed to have a larger area than the elevating frame 20, so that the lower edge of the corner portion of the mattress 30 is installed not to contact the elevating frame 20.

The lift 40 is installed between the base frame 10 and the elevating frame 20 to elevate and elevate the elevating frame 20 from the base frame 10. It is noted that the lift 40 in the present invention uses a screw jack, and another type of lift 40 can be used.

The screw jack is provided with an upper bracket 45 and a lower bracket 46 that can be fixed to the reinforcing frame 15, 25, and the first link 41 that is axially coupled to the upper bracket 41 and rotates. A second link 42 is provided, and a third link 43 and a fourth link 44 that are axially coupled and rotated to the lower bracket 46 are provided. In addition, one end of the first link 41 and the third link 43 is coupled by the first axis S1, and one end of the second link 42 and the fourth link 44 is the second axis S2. It is combined by. The first link 41, the second link 42, the third link 43, and the fourth link 44 are formed with the same length. In addition, the screw rod 47 is formed with a thread around the periphery is installed through the first shaft (S1) and the second shaft (S2), the first shaft (S1) has a thread through the hole through which the screw rod (47) While being formed and spirally coupled with the screw rod 47, the thread is not formed in the hole through which the screw rod 47 penetrates the second shaft S2, so that the screw rod 47 idles from the second shaft S2. . However, the screw rod 47 is formed with extended steppeds provided on both sides of the hole, so that the screw rod 47 only rotates from the second shaft S2 and cannot move in the longitudinal direction. And the second shaft (S2) is provided with a connecting rod (48), a reducer (49) and a motor (M) are installed on the connecting rod (48), and reduce the shaft (49) of the shaft (M) of the motor (M) and the reducer (49). By connecting it, the power of the motor M is allowed to rotate the screw rod 47. The upper bracket 45 is fixed to the reinforcement frame 25 of the elevating frame 20, and the lower bracket 46 is installed to the reinforcement frame 15 of the base frame 10. These lifts 40 are installed on both sides of the front end and the rear end of the bed, respectively, and each motor M is electrically connected to a controller (not shown) to operate all the lifts 40 simultaneously by the operation of one controller. . Since all of the lifts 40 are installed in the same size, the elevating and descending frame 20 elevating and elevating while maintaining the horizontal state.

A detailed description will be given of the effect of the moving bed which is easy to replace the mattress cover according to the present invention having such a structure.

First, in order to replace the mattress cover 50, the mattress 30 must be elevated. To do this, the user operates the controller to supply power to the motor (M). Then, while all the motors M are driven simultaneously, the screw rods 47 of the lift 40 are rotated by the reducer 49 connected thereto. The rotating screw rod 47 has one end idling without moving the position from the first shaft S1, while the first shaft S1 and the second shaft S2 are spirally coupled to the second shaft S2. The first link 41 and the second link 42 and the third link 43 and the fourth link 44 rotate little by little in close proximity to each other. At the same time, the upper bracket 45 and the lower bracket 46 gradually move away. Since the base frame 10 to which the lower bracket 46 is fixed is mounted on the floor, the elevating frame to which the upper bracket 45 is fixed ( 20) is elevated. In addition, the mattress 30 mounted on the elevating frame 20 is also elevated, and the lower portions of the four corner portions of the mattress 30 are exposed. As the lower portion of the mattress 30 is exposed as it is, the rubber band 51 caught at the lower corner of the mattress 30 is also exposed, so that the user can easily release the jammed state by flipping the rubber band 51.

The mattress cover 50 from which the rubber band 51 is released is removed by the user, and each rubber band 51 of the mattress cover 50 is installed at the bottom of the corner of the mattress 30 to install a clean mattress cover 50. Hang on and install. In this way, the work of fixing the rubber band 51 is also in a state where the lower end of the corner of the mattress 30 is exposed, so it can be easily and effortlessly walked. When fixing of the rubber band 51 to the four corners of the mattress 30 is completed, the controller is operated to lower the elevating frame 20. The lowering process of the elevating frame 20 is omitted because it is the opposite of the elevating. When the elevating frame 20 descends and is located on the same horizontal line as the upper frame 11 of the base frame 10, the descending stops and the mattress 30 placed on the upper portion of the elevating frame 20 has an edge of the base frame ( 10) is seated on the upper frame (11). Thus, the edge of the mattress 30 is seated on the upper frame 11 of the base frame 10, thereby preventing sagging of the edge.

On the other hand, the elevating frame 20 is provided with a first limit switch (not shown) and a second limit switch (not shown) so that the power is cut off when the elevating frame 20 is positioned at the set elevating and descending heights. Try to stop. This is to prevent the first link 41, the second link 42, the third link 43, and the fourth link 44 from contacting each other to deform.

6A to 6H are enlarged sectional views of main parts showing a structure of an elevating bed for easy replacement of a mattress cover according to another embodiment of the present invention, and FIG. 7 is an enlarged perspective view of main parts showing the state of FIG. 6G.

As shown in these drawings, the mattress cover, which is easy to replace the mattress cover according to another embodiment of the present invention, is configured to automatically release the rubber band 51 of the mattress cover 50 when the mattress 30 is elevated.

Elevating bed easy to replace the mattress cover according to another embodiment of the present invention is installed on the edge of the elevating frame 20, the slider 61 to appear and go; A locking piece 62 that is axially coupled to the front end of the slider 61 and rotated and the rubber band 51 of the mattress cover 50 is locked when in a horizontal state; It is axially coupled to the elevating frame 20 and rotated, but is composed of a first end 63a protruding upwardly from the axis and a second end 63b protruding horizontally from the axis, and the first end ( 63a) is rotated in close contact with the rear end of the slider 61 to rotate the slider 61 to advance the slider 61; One end is connected to the slider 61, the other end is connected to the elevating frame 20, a spring 64 for returning the advanced slider 61 to the rear; The first stopper 65 which is installed on the elevating frame 20 and is located at the rear of the pivoting table 63 to be rotated to the rear so that the pivoting table 63 is rotated to limit the rotational range of the pivoting table 63; A second stopper 66 installed on the base frame 10 so that the second end 63b of the pivot table 63 is caught and rotated when the elevating frame 20 is elevated; It consists of.

The slider 61 is formed in an elongated bar shape, and is installed diagonally at the corner of the elevating frame 20. As for the elevating frame 20, the guide groove 21 into which the slider 61 is inserted or seated is formed in the inner and outer directions of the elevating frame 20. Therefore, the slider 61 slides along the guide groove 21 in the longitudinal direction.

At the tip of the slider 61, the engaging piece 62 is axially coupled to rotate, and is rotated in the vertical direction by being coupled by a horizontal axis. However, the portion where the engaging piece 62 is installed is recessed and the front and upper parts are opened so that the installed engaging piece 62 is rotated vertically and horizontally, that is, within 90°. Here, the engaging piece 62 is formed to a length that protrudes sufficiently from the tip of the slider 61 so that the rubber band 51 of the mattress cover 50 can be caught by the projecting engaging piece 62.

The pivot table 63 installed on the elevating frame 20 is formed in a'┘' shape and consists of a first end 63a protruding upward from the shaft and a second end 63b protruding laterally from the shaft. . Therefore, the rotating table 63 rotates in the vertical direction by a horizontal axis. In addition, the shaft of the pivot 63 protrudes the bracket downward from the elevating frame 20 so as to be positioned below the elevating frame 20, and the shaft is installed at the bottom of the bracket. The first end 63a of the pivot table 63 installed thereon is formed to have a length located at the rear end of the slider 61.

One end of the spring 64 is installed at the rear end of the slider 61, and the other end of the spring 64 is fixed to the elevating frame 20 to pull the slider 61 rearward. Here, since the first end 63a of the pivot 63 is located at the rear end of the slider 61, when the slider 61 is pulled, the pivot 63 is also pulled and rotated.

In addition, the first stopper 65 to which the pivot table 63 is locked is fixedly installed on the elevating frame 20 to limit rotation of the slider 61 and the pivot table 63. It is installed within a range in which the first end 63a of the rotating table 63 can be located at the rear end of the rotating table 63.

In addition, the second stopper 66 installed on the base frame 10 is intended to be rotated while the second end 63b of the hoisting platform 63 is elevated. That is, the second end 63b is caught by the second stopper 66 when the pivot 63 is elevated, and accordingly, the pivot 63 is elevated and rotated simultaneously. At this time, the opposite first end 63a rotates forward and pushes the slider 61 at the tip thereof to appear from the elevating frame 20. On the other hand, when the elevating of the elevating frame 20 and the elevating of the pivot 63 further proceeds, the second end 63b of the pivot 63 is spaced apart from the second stopper 66, the slider by the spring 64 (61) is restored to the original state and at the same time the rotating table (63) rotates in the opposite direction to return to its original position.

In addition, the second stopper 66 is installed by a support 67 fixed to the base frame 10. That is, the second stopper 66 has a horizontal bar shape, one end of which is axially coupled to the support 67, and its end is engaged with the locking jaw 68 located on the same horizontal line so as not to rotate more than horizontal. That is, it is only possible to rotate from the horizontal state to the bottom, and it is impossible to rotate from the horizontal state to the top. The second stopper 66 is provided with a torsion spring (not shown) on the shaft so that when the external force is released, it is in close contact with the locking jaw 68.

Due to the structure of the second stopper 66, when the pivot table 63 is elevated, the second end portion 63b is locked by the second stopper 66 and rotates, and when the pivot table 63 is lowered, the second end portion 63b ) Passes without being caught by the second stopper 66.

A detailed description will be given of the effect of the moving bed, which is easy to replace the mattress cover according to another embodiment of the present invention having such a structure.

First, the usual mattress 30 is placed on the elevating frame 20 and the base frame 10 so that the lower end of the edge is not exposed to the outside. In this state, when the mattress cover 50 is to be replaced, the user drives the motor M by operating the controller to elevate the mattress 30. Then, all the motors M are rotated, and the reducer 49 and the screw rods 47 of the lift 40 connected thereto are rotated. At the same time, the second shaft (S2) spirally coupled to the screw rod (47) comes close to the first shaft (S1) while the first link (41), the second link (42), the third link (43), and 4 link 44 is rotated in the vertical direction, the upper and lower brackets 45 and 46, the distance between the lower bracket 46 is elevating frame 20 is elevated. At this time, as all the lifts 40 operate simultaneously, the elevating frame 20 maintains a horizontal state and elevates.

On the other hand, when the elevating frame 20 is elevating, the rotatable base 63 installed thereon also elevates, and the elevating rotatable base 64 has a second end 63b with a second stopper 66 installed on the base frame 10. ). As such, the lifting of the second end 63b stops from the moment the second end 63b contacts the second stopper 66, and the pivot 63 is rotated about an axis and at the same time the first end 63a. Moves forward, the slider 61 is advanced. The advancing slider 61 emerges from the elevating frame 20, and the engaging piece 62 at its tip is exposed to the outside. A rubber band 51 of the mattress cover 50 is hung and fixed to the exposed hook piece 62, and the moment of the axis of the hook piece 62 is located at the edge of the mattress 30, the rubber band 51 By the pulling force, the engaging piece 62 rotates vertically upward, and the engaged rubber band 51 is peeled off from the engaging piece 62, and the engaging state is released. That is, when the mattress 30 is elevated to a predetermined height, it is automatically released even if the user does not release the rubber band 51. Therefore, the user only needs to collect the mattress cover 50.

On the other hand, when the engaging piece 62 is rotated and the elevating frame 20 is further elevated, the second end 62b of the pivoting table 63 is spaced apart from the second stopper 66 and momentarily spaced from the spring 64 By this, the slider 61 is inserted into the elevating frame 20. At the same time, the rotating table 63 is also rotated and restored to its original state, and the first end 63a of the rotating table 63 is caught by the first stopper 65 and is no longer rotated.

Since the lower portion of the corner of the mattress 30 having been lifted is exposed, the rubber band 51 of the new mattress cover 50 can be easily hung. After putting the rubber band 51 of the mattress cover 50 on all four corners, the controller is operated to lower the elevating frame 20 to complete the mattress 30 on the top of the base frame 10. .

10: base frame 11: upper frame 12: lower frame
13: support 14: legs 15, 25: reinforcement frame
16: headboard 20: elevating frame 21: guide groove
30: mattress 40: lift 41: first link
42: second link 43: third link 44: fourth link
45: upper bracket 46: lower bracket 47: screw rod
48: connecting rod 49: reducer 50: mattress cover
51: rubber band 61: slider 62: hook piece
63: rotating table 63a: first end 63b: second end
64: spring 65: first stopper 66: second stopper
67: support 68: locking jaw S1: first axis
S2: 2nd axis

Claims (7)

A base frame 10 having a square frame;
The base frame 10 is installed inside the elevating frame 20 to elevate;
A mattress 30 that is mounted on the upper portion of the elevating frame 20 but the lower edge of the corner is installed so as not to contact the elevating frame 20; And
A lift 40 installed between the base frame 10 and the elevating frame 20 to elevate and elevate the elevating frame 20;
A slider 61 installed at an edge of the elevating frame 20 to appear and disappear;
A locking piece 62 that is axially coupled to the front end of the slider 61 and rotated and the rubber band 51 of the mattress cover 50 is locked when in a horizontal state;
It is axially coupled to the elevating frame 20 and rotated, but is composed of a first end 63a protruding upwardly from the axis and a second end 63b protruding horizontally from the axis, and the first end ( 63a) is rotated in close contact with the rear end of the slider 61 to rotate the slider 61 to advance the slider 61;
One end is connected to the slider 61, the other end is connected to the elevating frame 20, a spring 64 for returning the advanced slider 61 to the rear;
The first stopper (63a) to limit the rotation range of the pivoting table 63 by being installed on the elevating frame (20) is located at the rear of the pivoting table (63) and the pivoting table (63) pivoting to the rear is engaged; And
Mattress cover, characterized in that it comprises a; installed on the base frame 10, the second stopper (66) so that the second end (63b) of the pivoting table 63 is rotated when the elevating frame 20 is elevated Easily replaceable lifting bed.

The method of claim 1, wherein the mattress 30 is characterized in that when the elevating frame 20 descends and is located on the same horizontal line as the base frame 10, it is placed on the elevating frame 20 and the base frame 10. Elevating bed for easy replacement of mattress cover.
The method of claim 1, wherein the lift 40 is made of a screw jack, a motor (M) is installed on one side of the screw rod (47) of the screw jack, the motor (M) and the screw rod (47) reducer ( 49), the mattress cover is easy to replace the lifting bed, characterized in that provided with a controller for operating the drive of the motor (M).
According to any one of claims 1 to 3, The elevating frame (20) is provided with a first limit switch (SW1) and a second limit switch (SW2), the elevating frame (20) has a set elevating height And the elevation bed is easy to replace the mattress cover, characterized in that the power is cut off when located at the height.
delete The method according to claim 1, wherein the second stopper (66) is axially coupled to a support (67) which is fixedly installed on the base frame (10) and rotates in a vertical direction, the end of which is a locking jaw (68) located on the same horizontal line. It is prevented from being rotated more than horizontally by being caught in the bed, and the mattress cover is easy to move up and down, characterized in that the end is in close contact with the locking jaw 68 by a torsion spring installed on the shaft.
The method of claim 1, wherein the slider 61 is formed to form a depression that opens to the top and the front end and is axially engaged by seating the engaging piece (62), but the tip of the engaging piece (62) is the leading end of the slider (61). Elevating bed for easy replacement of the mattress cover characterized by protruding.

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