CN113491415A - Bed control method - Google Patents

Abstract

The invention provides a bed control method. A method of controlling a bed of an embodiment of the present invention may include: supplying power to the bed to open the strength adjusting module, the body pressure sensing thin plate and the main control part; a step of selecting an operation mode for pad strength adjustment; transmitting a body pressure sensing command from the main control unit to the body pressure sensing sheet, and scanning the body pressure of the user lying on the body pressure sensing sheet; transmitting the scanned body pressure data to the main control unit to confirm a body pressure concentration area; selecting one or more intensity adjusting modules located in the body pressure concentration area; transmitting a pad intensity adjustment command from the main control part to the selected one or more intensity adjustment modules; and operating the selected driving motor of the strength adjusting module according to the transmitted pad strength adjusting command to adjust the strength of the pad member.

Description

Bed control method

Technical Field

The invention relates to a control method of a bed.

Background

Generally, mattresses that function as cushions for beds include spring mattresses, sponge mattresses, memory foam mattresses, and the like, and the spring mattresses are most widely used.

The spring mattress of the prior art is formed with a single mattress member in which a plurality of coil compression springs are complexly intertwined, or is formed with a structure in which a plurality of pocket spring modules are arranged.

In the case of a mattress in which a plurality of helical compression springs are complexly entangled, there is a disadvantage in that vibration generated by the elastic force of the springs is directly transmitted to a person lying on the mattress, thereby causing discomfort to the person lying on the mattress.

In the case of mattresses comprising pocket spring modules, these prior art mattresses still suffer from the problem of an inability to adjust the strength of the mattress, although they have the advantage of a relatively reduced amount of vibration transmitted to bystanders.

The mattress strength required for each user is different according to the sex, age and physical condition of the user using the bed, but the mattress of the related art has a problem that the user cannot freely adjust the mattress strength.

In order to solve such problems, various studies and efforts have been continuously made to realize a bed in which the pad strength of a mattress can be differently set according to a position in which a user lies or a position in which a body part of the user is in contact.

In the structure of the coil-in-coil spring disclosed in patent document 1, an inner spring having a small elastic strength and an outer spring having a large elastic strength and being long are accommodated in a pocket.

Since the lengths and elastic strengths of the inner spring and the outer spring are set to be different, different pad strengths are exhibited according to the magnitude of the load applied to the top surface of the spring.

Therefore, when a user lies on the mattress, the load applied to different parts of the body is different, and the amount of contraction of the spring is different.

However, in the case of patent document 1, the spring shrinkage amounts at the positions where the same vertical load acts are the same in terms of structural characteristics. Therefore, under the condition that the vertical load is constant, for example, under the condition of the same user, the problem that the strength of the mattress can not be adjusted still exists.

Patent document 2 discloses that the support member includes a base plate and a support plate rotatably coupled to the base plate, and the elastic strength of the support member is adjusted by using the rotation of the support plate.

In the case of patent document 2, there is an advantage that the mattress pad strength can be freely set according to the selection of the user, and the pad strength can be adjusted differently according to the portion contacted by the body of the user.

However, it can be confirmed from the disclosure of fig. 3B to 6B of patent document 2 that there is a disadvantage that the variable range of the elastic strength that the support member has is very narrow.

In addition, since the upper support plate needs to be manually rotated, there is a disadvantage that the pad strength of the plurality of support plates cannot be adjusted at one time by the driving means.

In addition, in the cases of patent documents 1 and 2, sweat of the user may permeate into the surface of the mattress that the user's skin directly contacts, and the cover including the mattress is also wet in a weather where humidity is high in summer, which may cause discomfort to the user. Also, when the mattress is maintained in a wet state for a long time, the possibility of the inside of the mattress being contaminated with mold or mites is very high.

To solve such a problem, patent document 3 discloses a blower device for supplying hot air or cold air to a mattress.

However, in the case of patent document 3, in the bed structure in which a part of the mattress is inclined, there is still a disadvantage that the hot air or the cold air supplied from the air blowing device cannot be smoothly supplied to the mattress side.

Patent document 1: US7908693B (published day: 2011 3 month 22 day)

Patent document 2: US9119478B (published: 2015 9 months 1 day)

Patent document 3: US8402579B (published: 2013, 3, 26)

Disclosure of Invention

The method of controlling a bed of the present invention is proposed in order to ameliorate the problems with the prior art beds as described above.

In order to achieve the above object, an embodiment of the present invention provides a method for controlling a bed, the bed including: a top piece to which a body of a user contacts; a plurality of strength adjusting modules including a plurality of pad members provided at a lower side of the top part, a driving motor generating a driving force for adjusting pad strengths of the plurality of pad members, and a gear assembly transmitting the rotating force generated by the driving motor to the pad members; a fiber-type body pressure-sensing sheet provided on the top surface of the top member, for sensing the body pressure of a lying user; and a control box provided with a main control part for controlling the operation of the body pressure sensing thin plate and the strength adjusting module.

The bed control method of the embodiment of the invention can comprise the following steps: supplying power to the bed to open the strength adjustment module, the body pressure sensing thin plate, and the main control unit; a step of selecting an operation mode for pad strength adjustment; transmitting a body pressure sensing command from the main control unit to the body pressure sensing sheet, and scanning the body pressure of the user lying on the body pressure sensing sheet; transmitting the scanned body pressure data to the main control unit to confirm a body pressure concentration area; selecting one or more intensity adjusting modules located in the body pressure concentration area; transmitting a pad intensity adjustment command from the main control part to the selected one or more intensity adjustment modules; and operating the selected driving motor of the strength adjusting module according to the transmitted pad strength adjusting command to adjust the strength of the pad member.

The control method of the bed according to the embodiment of the invention has the following effects.

First, the height of the inner spring provided inside the cushion member can be adjusted, and thus, a user can easily set a desired level of cushion strength.

Second, the pad strength can be linearly adjusted by adjusting the height of the inner spring.

Thirdly, the driving means is connected to the transmission gear provided at the lower end of the pad member, so that the plurality of pad members can be adjusted at one time to maintain the same level of pad strength.

Fourth, the strength control unit includes a plurality of strength control modules, one of the strength control modules includes a plurality of pad members arranged in a width direction of the bed, and a plurality of strength control modules arranged in a length direction of the bed.

Therefore, the user can adjust different pad strengths of the mattress according to different parts of the body, thereby providing an optimal sleeping state.

Fifth, a part of the bed can be tilted by the operation of the motion control unit, and thus, an optimal sleep state can be provided to the user.

Sixth, only the top member constituting the bed can be easily separated and replaced, and the strength adjusting module can be easily replaced or repaired in a state where the top member is separated.

Seventh, the drying module is installed on the bottom surface of the bed, so that the top member is maintained in a dry state, thereby preventing the generation of mold on the top member. Further, since the top member can be always maintained in a dry state at a predetermined level or more, the user feels comfortable when the skin of the user contacts the top member, which helps the user to go to deep sleep.

Eighth, the fibrous body pressure sensor can quickly confirm the region where the body pressure is concentrated when the user lies on the bed.

Ninth, the intensity adjustment module can be operated automatically or manually based on the body pressure data sensed by the body pressure sensing sensor to appropriately adjust the cushion intensity of the region in which the body pressure is concentrated, and therefore, an optimal sleep state can be provided.

Drawings

Fig. 1 is a perspective view of a bed according to a first embodiment of the present invention.

Fig. 2 is a perspective view of the bed of the first embodiment of the present invention showing a state where the upper body part is inclined.

Fig. 3 is an exploded perspective view of a bed according to a first embodiment of the present invention.

Fig. 4 is a longitudinal sectional view of the bed of the first embodiment of the present invention taken along section 4-4 of fig. 1.

Fig. 5 is a bottom view of the top member constituting the bed of the first embodiment of the present invention.

Figure 6 is a longitudinal cross-sectional view of the top piece taken along line 6-6 of figure 3.

Fig. 7 is a perspective view of a motion control unit constituting a bed according to a first embodiment of the present invention, as viewed from above.

Fig. 8 is a perspective view of the motion control unit as viewed from below.

Fig. 9 is a side view of the motion control unit in a horizontal state.

Fig. 10 is a side view of the motion control unit in a state where the upper body frame and the thigh frame are inclined to the upper side.

Fig. 11 is a side sectional view of the motion control unit taken along 11-11 of fig. 7 in the state of fig. 10.

Fig. 12 is a view showing a combination relationship of the strength adjusting module and the motion control unit constituting the bed of the first embodiment of the present invention.

Fig. 13 is a perspective view of a partition constituting a bed of the first embodiment of the present invention.

FIG. 14 is a front perspective view of a pad member according to one embodiment of the present invention.

Fig. 15 is a bottom perspective view of the pad member.

Fig. 16 is an exploded perspective view of the pad member.

Fig. 17 is a bottom perspective view of an upper cover constituting a cushion member of the embodiment of the present invention.

Fig. 18 is a perspective view of an inner case constituting a cushion member of the embodiment of the present invention.

Fig. 19 is a perspective view of a housing constituting a cushion member of the embodiment of the present invention.

Fig. 20 is a plan view showing a coupled state of an outer casing, an inner casing, and a lead screw constituting a pad member according to an embodiment of the present invention.

Fig. 21 is a longitudinal sectional view of the cushion member of the embodiment of the present invention taken along 21-21 of fig. 14 in a state where no external force is applied.

Fig. 22 is a longitudinal sectional view of the cushion member of the embodiment of the present invention taken along 21-21 of fig. 14 in a state where an external force is applied.

Fig. 23 is a side perspective view of an intensity adjustment module of an embodiment of the present invention.

Fig. 24 is a bottom perspective view of the intensity adjustment module.

Fig. 25 is an exploded perspective view of an intensity adjustment module of an embodiment of the present invention.

Fig. 26 is an exploded perspective view showing the structure of the bottom surface portion of the module case constituting the strength adjusting module.

Fig. 27 is a cut-away perspective view of the strength adjustment module of the embodiment of the present invention taken along section 27-27 of fig. 23.

Fig. 28 is a bottom view of the strength adjustment module of the embodiment of the present invention with the bottom case removed.

Fig. 29 is a bottom perspective view of a bed of a first embodiment of the invention provided with a drying module.

Figure 30 is a longitudinal cross-sectional view of the bed taken along line 30-30 of figure 29.

Fig. 31 is a perspective view of a drying module provided in a bed of the first embodiment of the present invention.

Fig. 32 is a perspective view of a bed according to a second embodiment of the present invention.

Fig. 33 is a longitudinal cross-sectional view of the bed taken along line 33-33 of fig. 32.

Fig. 34 is an exploded perspective view of a bed according to a second embodiment of the invention.

Fig. 35 is a bottom perspective view of the combination of the strength control unit and the motion control unit.

Fig. 36 is a perspective view of the combination of the motion control unit and the shield frame of the second embodiment of the present invention as viewed from above.

Fig. 37 is a perspective view of the combination of the motion control unit and the shield frame of the second embodiment as viewed from below.

Fig. 38 is a cross-sectional view of the motion generator taken along line 38-38 of fig. 37.

Figure 39 is a longitudinal section of the motion generator taken along section 39-39 of figure 38.

Fig. 40 is a perspective view showing an operation of a motion control unit of the second embodiment of the present invention.

Fig. 41 is a longitudinal sectional view of the motion control unit taken along section 41-41 of fig. 40.

Fig. 42 is a partially cut-away perspective view showing an enlarged state of a motion control unit in combination with an intensity control unit in the second embodiment of the present invention.

Fig. 43 is a perspective view of a drying module according to a second embodiment of the present invention.

Fig. 44 is a longitudinal sectional view of the bed taken along 44-44 of fig. 43 in a state where the top part is placed on the upper side of the drying module.

Fig. 45 is a perspective view of a bed according to a third embodiment of the present invention, as viewed from above.

Fig. 46 is a perspective view of a bed according to a third embodiment of the present invention, as viewed from below.

Fig. 47 is an exploded perspective view of a bed according to a third embodiment of the present invention.

Fig. 48 is a longitudinal cross-sectional view of the mattress set taken along section 48-48 of fig. 45.

Fig. 49 is a perspective view of a module seating plate of a mattress set constituting a bed of the third embodiment of the present invention.

Fig. 50 is a partial longitudinal cross-sectional view of the module mounting plate taken along section 50-50 of fig. 49.

Fig. 51 is a partial longitudinal sectional view of the module seating plate taken along 50-50 of fig. 49 in a state of being inclined by the motion control unit.

Fig. 52 is an exploded perspective view of a mattress set and a drying module that make up a bed in accordance with a third embodiment of the invention.

Fig. 53 is a longitudinal sectional view of the third embodiment bed of the present invention taken along section 53-53 of fig. 46.

Fig. 54 is a perspective view of the motion control unit showing a state in which the upper body frame is inclined.

Fig. 55 is a perspective view of a strength adjusting module of an embodiment of the present invention in which a cushion plate is combined to the top surface of a cushion member.

Fig. 56 is a bottom perspective view of the buffer plate.

Fig. 57 is a view showing a portion where the body weight is concentrated when the user lies on the body pressure sensing sheet of the bed according to the embodiment of the present invention.

Fig. 58 is a view showing a portion where the body weight is concentrated when the user lies on the side on the body pressure sensing sheet.

Fig. 59 is a flowchart illustrating a mattress strength control method of a bed according to a first embodiment of the present invention.

Fig. 60 to 63 are display screens of the body pressure regulator shown in the course of executing the method for controlling the mattress strength of the bed according to the first embodiment of the present invention.

Fig. 64 is a flowchart illustrating a mattress strength control method of a bed according to a second embodiment of the present invention.

Fig. 65 and 66 are display screens of the body pressure regulator shown in the process of executing the method for controlling the mattress strength of the bed according to the second embodiment of the present invention.

Detailed Description

Hereinafter, a mattress strength control unit and a bed provided with the same according to an embodiment of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a perspective view of a bed according to a first embodiment of the present invention, fig. 2 is a perspective view of the bed according to the first embodiment of the present invention showing a state where an upper body part is inclined, fig. 3 is an exploded perspective view of the bed according to the first embodiment of the present invention, and fig. 4 is a longitudinal sectional view of the bed according to the first embodiment of the present invention taken along 4-4 of fig. 1.

Referring to fig. 1 to 4, a bed 10 according to an embodiment of the present invention may include: a top piece (topper, 12), on which top piece 12 the body of a user is placed; a strength control unit 20, placed on the underside of the top part 12, comprising a plurality of strength control modules; a spacer (40) interposed between the plurality of intensity control modules; a motion control unit 30 placed at a lower side of the intensity control unit 20; a shielding plate 13 disposed around along edges of the strength control unit 20 and the motion control unit 30; and a bedspread (or mantle) 11 surrounding the top piece 12 and the apron 13.

Hereinafter, the term "strength" or "mat strength" may be understood to mean the degree of softness or firmness of the bed.

The intensity of the bed favored by the user may vary depending on the age, interest, or physical condition of the user. For this reason, the bed according to the embodiment of the present invention is characterized in that the user can adjust the flexibility of the bed by the operation of the strength control unit 20.

The bed cover 11 may be formed to have a size to completely surround the top surface and the side surface of the bed 10, or may be formed to have a size to further surround the bottom surface of the bed 10 according to design conditions.

The bed cover 11 is made of a stretchable material such as spandex including polyurethane, and can always maintain a tight state. At this time, with the operation of the motion control unit 30, the bed cover 11 is stretched when the bed is inclined, and the bed cover 11 is contracted again to the original state when the motion control unit 30 is returned to the flat state.

The topper member 12 is the part on which the user's body is placed and may comprise a memory foam mattress which is depressed by the user's weight and then returns to its original state when the load is removed.

In the description of the present invention, the mattress may represent only the topper 12, or may represent a member including the topper 12 and the strength control unit 20.

The intensity control unit 20 may be defined as an aggregate of a plurality of intensity adjustment modules arranged from the front end to the rear end side of the bed 10. Each of the plurality of strength adjustment modules may include a module case 21 and a plurality of pad members C arranged inside the module case 21.

The partition member 40 interposed between the adjacent strength adjusting modules is at a hinge point of the motion control unit 30. The strength adjustment modules adjacent to each other in the region where the hinge point is located are spaced apart more widely than the strength adjustment modules adjacent in the other regions. This is to minimize interference caused between the intensity adjustment modules adjacent to the hinge point due to the operation of the motion control unit 30.

When a body part of the user is placed in the partitioned space between the adjacent strength adjustment modules formed at the hinge point, the user may feel uncomfortable in a lying state, and thus, the partition 40 is disposed in the partitioned space.

The shielding plate 13 is configured to prevent the legs or the knees of the user approaching the bed 10 from colliding with the motion control unit 30 to feel pain or injury. Therefore, the protection plate 13 may be formed of a soft material such as sponge or memory foam.

Fig. 5 is a bottom view of the top member constituting the bed of the first embodiment of the present invention, and fig. 6 is a longitudinal sectional view of the top member taken along 6-6 of fig. 3.

Referring to fig. 5 and 6, the top surface of the pad member C constituting the strength control unit 20 is in contact with the bottom surface of the top member 12.

In detail, the top 12 may include a hexahedral shape top body 121 having a prescribed thickness.

As another example, a support sleeve 122 for supporting the upper end portion of the spacer 40 and the cushion member C may be formed to protrude from the bottom surface of the topper body 121.

The support sleeve 122 may include: the cushion member support sleeve is configured in a cylindrical shape, and the partition support sleeve extends in a rectangular cross-sectional shape. In addition, the inner space of the cushion member-supporting sleeve may be defined as a cushion member-receiving groove 123, and the inner space of the partition-supporting sleeve may be defined as a partition-receiving groove 124.

Since the upper ends of the pad member C and the spacer 40 are fixed by the support sleeve 122, even if the vertical state of the pad member C and the spacer 40 is broken during the operation of the motion control unit 30, the state in which the bottom surface of the top member 12 is connected to the strength adjusting module and the spacer 40 can be maintained to the maximum extent.

Fig. 7 is a perspective view of a motion control unit constituting a bed according to a first embodiment of the present invention, as viewed from above, and fig. 8 is a perspective view of the motion control unit, as viewed from below.

Referring to fig. 7 and 8, the motion control unit 30 constituting the bed 10 of the embodiment of the present invention may include: a base frame 35 placed on the installation surface; a mounting frame on the top surface of which the strength control unit 20 is placed; and a support frame 36 connecting the base frame 35 and the seating frame.

In detail, the mounting frame may substantially include four frames.

Specifically, the four frames constituting the placement frame may include an upper body frame (torso frame)31, a hip frame (hip frame)32, a thigh frame (thigh frame)33, and a calf frame (calf frame) 34.

The upper body frame 31 may be defined as a frame supporting an upper body (upper body) of the user, and the hip frame 32 may be defined as a frame supporting a hip of the user.

The thigh frame 33 may be defined as a frame that supports a thigh portion of the user, and the calf frame 34 may be defined as a frame that supports an under-thigh portion of the user's leg.

The front end of the upper body frame 31 may be defined as the front end of the motion control unit 30, and the rear end of the lower leg portion frame 34 is defined as the rear end of the motion control unit 30.

The rear end of the upper body frame 31 may be rotatably coupled to the front end of the hip frame 32, and the front end of the thigh frame 33 may be rotatably coupled to the rear end of the hip frame 32.

The rear end of the thigh frame 33 and the front end of the lower leg frame 34 may be connected to each other so as to be rotatable relative to each other.

The upper body frame 31 may include a profile frame 311, a plurality of pad member seating plates 312, and a plurality of connection bars 313.

The outer frame 311 is formed in a quadrangular shape, and can define a front end portion, a rear end portion, and two side end portions of the upper body frame 31.

The plurality of coupling bars 313 couple front and rear end portions of the outer frame 311, and may be arranged to be spaced apart in the left and right direction of the outer frame 311.

The plurality of pad member seating plates 312 connect left and right side ends of the outer frame 311, and may be arranged spaced apart along the front-rear direction of the outer frame 311. Accordingly, the plurality of coupling bars 313 and the plurality of cushion member seating plates 312 may be understood as structures arranged in directions orthogonal to each other.

In addition, a pair of vertical bars 314 may extend in the vertical direction at the left and right side corners of the front end portion of the outline frame 311, and the pair of vertical bars 314 may be connected by a horizontal bar 315. Further, an inclined bar 316 may extend from the lower end of each of the pair of vertical bars 314 to the rear end of the profile frame 311.

The pair of vertical rods 314 may be understood as members that transmit a vertical load applied to the profile frame 311 to an installation surface, thereby performing a function of preventing the profile frame 311 from being bent by the vertical load. The vertical load may be understood as a load that is a sum of a user's upper body load, a load of the strength control module, and a part of a load of the top member.

The horizontal bar 315 may be understood as a member that performs a function of preventing the lower end portions of the pair of vertical bars 314 from being bent in a direction away from or a direction toward each other due to the vertical load.

The inclined lever 316 may be understood as a member that performs a function of preventing the pair of vertical levers 314 from being bent toward the front or the rear of the motion control unit 30 due to the vertical-direction load.

A frame portion (or bar) for defining a rear end portion of the profile frame 311 functions as a hinge axis (or rotation center) of the profile frame 311. Accordingly, a rear end portion of the profile frame 311, which is a rotation center of the upper body frame 31, may be defined as an upper hinge axis.

An upper actuator 37 is attached to a bottom surface of the outer frame 311, and the upper actuator 37 rotates the upper body frame 311 about the upper hinge shaft. The upper actuator 37 may include a driving part 371 and a plunger 372 extended or contracted by the driving part 371.

When the plunger 372 extends forward, the upper body frame 31 rotates upward, and when the plunger 372 contracts rearward, the upper body frame 31 rotates downward.

A fastening flange for fixing the upper actuator 37 is provided at the bottom surface of the mounting frame.

The fastening flange may include: a plunger fastening flange 317 to which a front end portion of the upper actuator 37 is rotatably connected; and a drive portion fastening flange 318, to which the rear end portion of the upper actuator 37 is rotatably connected.

A front end portion of the plunger 372 may be rotatably connected to the plunger fastening flange 317.

Also, the plunger fastening flange 317 may be formed at the bottom surface of the upper body frame 31, and the driving part fastening flange 318 may be formed at the bottom surface of the hip frame 32.

Also, the plunger fastening flange 317 may be formed at a higher position than the driving part fastening flange 318. In other words, a horizontal line (or horizontal plane) passing through the plunger fastening flange 317 and a horizontal line (or horizontal plane) passing through the driving part fastening flange 318 may be spaced apart by a predetermined interval in the vertical direction.

With such a structure, the plunger 372 of the upper actuator 37 is disposed obliquely in a state where the set frame is horizontally placed. Thereby, when the plunger 372 extends, the upper body frame 31 can be rotated to the upper side. If the plunger 372 extends in a horizontal state, the upper body frame 31 may not be smoothly rotated upward.

In addition, the hip frame 32 may include a contour frame 321, one or more pad member seating plates 322, and a plurality of connection bars 323, like the upper body frame 31.

The outer frame 321 may be formed in a rectangular shape by four bars. On the bottom surface of the front end portion of the outer frame 321, a plurality of upper hinge shaft brackets 324 are disposed to be spaced apart in the left-right direction. Further, the rear end of the upper body frame 31 is provided to penetrate the plurality of upper hinge shaft brackets 324, whereby the rear end of the upper body frame 31 is rotatably connected to the front end of the hip frame 32.

The hip frame 32 may further include a load support bar 328 connecting the front end bottom surface and the rear end bottom surface of the outer frame 321. Specifically, the driving portion fastening flange 318 is connected to a distal end portion of the load support rod 328.

In a state where the upper body frame 31 is inclined upward, the load support rod 328 can prevent the driving portion fastening flange 318 from being pushed rearward by the vertical load transmitted to the upper actuator 37.

A lower actuator 38 is attached to a lower side of the hip frame 32 so that a rear end of the thigh frame 33 can be inclined in the vertical direction. Like the upper actuator 37, the lower actuator 38 may include a driving portion 381 and a plunger 382.

A driving part fastening flange 326 is formed on the bottom surface of the front end part of the hip frame 32, and the driving part 381 of the lower actuator 38 is rotatably connected to the driving part fastening flange 326. Further, a plunger fastening flange 327 to which an end portion of the plunger 382 of the lower actuator 38 is rotatably connected is formed on a bottom surface of a front end portion of the thigh frame 33.

Further, the drive portion fastening flange 326 is located at a higher position than the plunger fastening flange 327. Therefore, it can be said that the upper actuator 37 is installed on the bottom surface of the mounting frame in such a manner that the plunger 372 is inclined upward, and the lower actuator 38 is installed on the bottom surface of the mounting frame in such a manner that the plunger 382 is inclined downward.

A support frame 36 extends from the bottom surface of the hip frame 32, and the lower end of the support frame 36 is connected to the base frame 35.

In detail, the base frame 35 is formed in a substantially quadrangular shape, and corners thereof may be formed to have a curvature, but the present invention is not limited thereto.

The support frame 36 includes a pair of frames extending downward at positions spaced apart in the left and right directions from the center of the hip frame 32. The pair of frames may be defined as a left side support frame and a right side support frame.

The lower end of the left support frame is connected to the left side of the base frame 35, and the lower end of the right support frame is connected to the right side of the base frame 35, so that the support frame 36 and the base frame 35 are integrally formed.

The bottom surface of the support frame 36 and the bottom surface of the base frame 35 pass through the same horizontal plane. Therefore, when the motion control unit 30 is placed on the setting surface, the motion control unit 30 can be prevented from shaking in the left-right direction.

Of course, the support frame 36 may be provided on the bottom surface of the hip frame 32 corresponding to the inner space of the base frame 35.

In addition, as shown in the drawing, frames having the same shape as the support frame 36 may be further provided at the left and right side edges of the hip frame 32, respectively. When the left and right side edges of the hip frame 32 are further provided with the support frames having the same shape as the support frames 36, it is possible to prevent the left and right side ends of the hip frame 32 from being bent and drooping downward by a vertical load applied from the top member 12 and the strength control unit 20.

As shown in the drawing, support frames having the same or similar shape as the support frame 36 may be formed on the left and right side ends of the thigh frame 33 and the left and right side ends of the shank frame 34, respectively.

It is noted that the supporting structure defined by the vertical bar 314 and the horizontal bar 315 formed at the front end portion of the upper body frame 31 may be formed at the rear end portion of the lower leg portion frame 34 as well.

A plurality of lower hinge shaft brackets 325 may be formed at the bottom surface of the front end of the hip frame 32.

Like the plurality of upper hinge shaft brackets 324, the plurality of lower hinge shaft brackets 325 may be disposed to be spaced apart in the right and left direction of the hip frame 32.

Further, a frame (or a bar) for defining the front end portion of the thigh frame 33 penetrates the lower hinge shaft bracket 325, so that the front end portion of the thigh frame 33 is rotatably connected to the rear end portion of the hip frame 32.

A front end portion of the thigh frame 33 as a rotation center of the thigh frame 33 may be defined as a lower hinge shaft.

The thigh frame 33 may be formed in a shape substantially symmetrical to the hip frame 32, but the present invention is not limited thereto.

Like the hip frame 32, the thigh frame 33 may include: a quadrangular outline frame 331; a plurality of connection rods 333 connecting front and rear ends of the outline frame 331; a pad member seating plate 332, both ends of which are coupled to top surfaces of left and right end portions of the outline frame 331. The cushion member seating plate 332 may be provided with one or a plurality.

As described above, the plunger fastening flange 327 is provided on the bottom surface of the distal end portion of the thigh frame 33, and the end portion of the plunger 382 of the lower actuator 38 is rotatably connected to the plunger fastening flange 327.

A plurality of connecting flanges 334 may extend at the rear end of the thigh frame 33. The plurality of connecting flanges 334 may be formed one on each of the left and right sides of the rear end portion of the thigh frame 33, but three or more are not excluded.

The lower leg frame 34 may include a profile frame 341, a pad member seating plate 342, and a connection rod 343, like the upper body frame 31.

The outline frame 341 may be constructed in a substantially quadrangular shape, and the cushion member seating plate 342 may be provided with one or more.

The plurality of pad member installation plates 342 are placed on the top surfaces of the left and right side end portions of the outline frame 341, and may be arranged to be spaced apart in the front-rear direction of the lower leg frame 34.

The connecting rod 343 may be provided in one or plural, and the plural connecting rods 343 connect front and rear end portions of the outline frame 341 and may be disposed to be spaced apart in the left-right direction of the lower leg frame 34.

A connecting flange 344 having the same form as the connecting flange 334 formed at the rear end of the thigh frame 33 may be formed at the front end of the lower leg frame 34. The connection flange 334 of the thigh frame 33 and the connection flange 344 of the lower leg frame 34 are connected to each other so as to be rotatable relative to each other.

Fig. 9 is a side view of the motion control unit in a horizontal state, fig. 10 is a side view of the motion control unit in a state where the upper body frame and the thigh frame are inclined to the upper side, and fig. 11 is a side sectional view of the motion control unit taken along 11-11 of fig. 7 in the state of fig. 10.

Referring to fig. 9, a state in which all frames defining a seating frame of the motion control unit 30, i.e., the upper body frame 31, the hip frame 32, the thigh frame 33, and the shank frame 34, are horizontal may be defined as a basic (default) state.

Referring to fig. 10, the upper body frame 31 and the thigh frame 33 may be inclined upward at a predetermined angle by the operation of the upper actuator 37 and the lower actuator 38.

Fig. 10 shows a state in which the plunger 372 of the upper actuator 37 is extended in a state in which the upper body frame 31 is inclined upward, and fig. 11 shows a state in which the plunger 382 of the lower actuator 38 is extended in a state in which the thigh frame 33 is inclined upward.

The hip frame 32 is always kept horizontal, and both the load (or rotational torque) transmitted from the upper body frame 31 to the upper actuator 37 and the load (or rotational torque) transmitted from the thigh frame 33 to the lower actuator 38 are transmitted to the hip frame 32.

The two rotational moments symmetrical to each other transmitted to the hip frame 32 are offset at the base frame 35. Therefore, the front end portion (the upper body frame side end portion) or the rear end portion (the thigh frame side end portion) of the base frame 35 is not lifted from the installation surface by the rotational moment. In order to prevent the front end or the rear end of the base frame 35 from being lifted by the rotational moment and the bed 10 from tipping over to the front end or the rear end side, the length of the base frame 35 is preferably long enough.

Fig. 12 is a view showing a combination relationship of the strength adjusting module and the motion control unit constituting the bed of the first embodiment of the present invention.

Referring to fig. 12, the strength control unit 20 of the embodiment of the present invention may be defined as an aggregate of a plurality of strength adjustment modules.

In detail, each of the plurality of strength adjustment modules may include a module case 21 and a plurality of pad members C disposed at the module case 21.

The module case 21 is seated on the cushion member seating plate 312, 322, 332, 342 provided on the top surface of the motion control unit 30. Specifically, the cushion member seating plates 312, 322, 332, 342 may be located at the center of the bottom surface portion of the module case 21.

Further, the strength adjusting module may be fixed to the top surface of the motion control unit 30 by a fastening member S penetrating the bottom surface of the module case 21 and inserted into the pad member seating plates 312, 322, 332, 342.

A through hole through which the fastening member S is inserted is formed in the center of the bottom surface of each of the two side ends of the module case 21. Fastening holes 332a through which the fastening members S are inserted are formed at the left and right side edges of the mat member-mounting plates 312, 322, 332, 342, respectively, so that both end portions of the module case 21 are fixed to the mat member-mounting plates 332.

In addition to such a fastening structure, an adhesive member in the form of a double-sided tape may be provided on the top surface of the mat member mounting plate, so that the bottom surface of the module case 21 is fixed to the mat member mounting plate.

Fig. 13 is a perspective view of a partition constituting a bed of the first embodiment of the present invention.

Referring to fig. 13, the spacer 40 according to the embodiment of the present invention is interposed between adjacent strength adjustment modules, thereby functioning to prevent interference between the adjacent strength adjustment modules.

In particular, the partition 40 is disposed at a position where the hinge shaft is located in each of the frames constituting the motion control unit 30.

Specifically, the spacer 40 may be placed on an upper hinge shaft as a rotation center of the upper body frame 31, a lower hinge shaft as a rotation center of the thigh frame 33, and connection flanges 334, 344 where the thigh frame 33 and the lower leg frame 34 relatively rotate.

The partition 40 disposed between the upper body frame 31 and the hip frame 32 may be defined as a first partition.

The partition 40 placed between the hip frame 32 and the thigh frame 33 may be defined as a second partition.

The partition 40 placed between the thigh frame 33 and the calf frame 34 may be defined as a third partition.

Thereby, when the upper body frame 31 is inclined to the upper side, the upper portions of the pad member C placed at the rear end of the upper body frame 31 and the pad member C placed at the front end of the hip frame 32 are approached. As a result, the upper portion of the first separator is compressed and its shape is deformed.

Similarly, when the thigh frame 33 is inclined upward, the upper portion of the second partition is compressed and its shape is deformed.

The third partition may have a thickness in the front-rear direction larger than the interval between a pad member placed at the rear end of the thigh frame 33 and a pad member placed at the front end of the shank frame 34. Wherein the front-back direction may be understood as the length direction of the motion control unit.

Thus, when the third partition is sandwiched between the thigh frame 33 and the calf frame 34, a state in which the thickness is reduced from the original thickness (basic thickness) when no external force acts is maintained.

In this state, when the thigh frame 33 is inclined upward, the interval between pad members adjacent to the front and rear ends of the third partition increases. As a result, the third separator is deformed in a direction approaching the basic thickness.

Only by relatively rotating the rear end of the thigh frame 33 and the front end of the lower leg frame 34, the third partition can be deformed into a so-called fan shape in such a manner that the thickness of the upper end portion is larger than the thickness of the lower end portion.

The partition member 40 is made of the same material as the top member 12 or the shielding plate 13, and thus has a characteristic of being deformed when an external force is applied thereto and being restored to an original state when the external force is removed.

Further, the plurality of slits 42 are formed at the upper end portion of the partition 40, so that it is possible to design the upper end portion of the partition 40 to easily cause shape deformation. Accordingly, the partition 40 may be described as including a body 41, a plurality of slits 42 formed at an upper end of the body 41, and a plurality of fins (fin)43 defined between the plurality of slits 42.

Further, the plurality of slits 42 and the fins 43 extend along the length direction of the partition 40 (the width direction of the motion control unit), and are formed alternately with each other in the thickness direction of the partition 40 (the length direction of the motion control unit).

Hereinafter, an embodiment of a cushion member C constituting a strength adjusting module of a bed according to an embodiment of the present invention will be described in detail with reference to the drawings. Further, other reference numerals may be given to the pad member C.

The pad member described below is described by taking as an example a case where it is formed in a cylindrical shape, but the present invention is not limited to this. In other words, the pad member according to the embodiment of the present invention includes a pad member configured in a polygonal tubular shape.

Fig. 14 is a front perspective view of a cushion member according to an embodiment of the present invention, fig. 15 is a bottom perspective view of the cushion member, and fig. 16 is an exploded perspective view of the cushion member.

Referring to fig. 14 to 16, a pad member 90 according to an embodiment of the present invention may include an outer case 91, an inner case 92, an outer spring 93, an inner spring 94, an upper cover 97, a lead screw 99, and a transmission gear 990.

The pad member 90 may also include at least some or all of an inner spring cover 95, an outer spring cover 98, and a bumper 96.

In detail, the outer spring 93 may include a helical compression spring wound in a helical shape.

The inner spring 94 has a smaller diameter than that of the outer spring 93, and may have a smaller spring constant (or a smaller spring constant) than that of the outer spring 93. In other words, the elastic strength of the inner spring 94 may be set to be smaller than the elastic strength of the outer spring 93.

Here, the elastic strength may be understood as being inversely proportional to the amount of deformation. For example, the inner spring 94 may be deformed by a larger amount than the outer spring 93 for the same axial force.

The elastic strengths of the inner spring 94 and the outer spring 93 may be set to be the same.

A thread may be formed on an outer circumferential surface of the lead screw 99, and the transmission gear 990 may be coupled at a lower end thereof. The lead screw 99 is rotatably coupled to the center of the bottom surface of the outer case 91, and the inner case 92 is screwed to the outer peripheral surface of the lead screw. Further, with the rotation of the lead screw 99, the inner housing 92 ascends or descends along the lead screw 99.

The inner spring cover 95 is a cover that covers the inner spring 94, and may be made of thin cloth, but the present invention is not limited thereto, and may be made of any material having a characteristic that its shape is deformed according to the elastic deformation of the spring and then returns to its original state.

The outer spring cover 98 is a cover that covers the outer spring 93, and may be made of the same material as the inner spring cover 95.

The buffer 96 is mounted on the bottom surface of the upper cover 97, and the upper end of the inner spring 94 contacts the bottom surface of the buffer 96 to absorb shock and noise. For example, when a vertical force is applied to the pad member 90 in a state where the inner case 92 is lowered to a position where the upper end of the inner spring 94 is spaced apart from the bottom surface of the upper cover 97, the cushion member 96 can absorb noise generated when the inner spring 94 collides against the bottom surface of the upper cover 97.

Hereinafter, the structure and functions of the upper cover 97, the inner case 92, and the outer case 91 will be described in detail with reference to the drawings.

Fig. 17 is a bottom perspective view of an upper cover constituting a cushion member of the embodiment of the present invention.

Referring to fig. 17, the upper cover 97 constituting the cushion member 90 of the embodiment of the present invention may include: a circular or polygonal cover plate 971; and a cover sleeve 972 extending downward from an edge of the cover plate 971.

On the bottom surface of the cover plate 971, a cushion seating portion 971a may be formed to have a step upward. A bottom surface of the cover plate 971 between an edge corresponding to the bumper seating portion 971a and an inner side edge of the cover sleeve 972 may be defined as a spring seating portion 971 b. The upper end portion of the outer spring 93 is disposed at the spring disposition portion 971 b.

Fig. 18 is a perspective view of an inner case constituting a cushion member of the embodiment of the present invention.

Referring to fig. 18, an inner case 92 constituting a cushion member 90 according to an embodiment of the present invention may include: a circular or polygonal shaped base plate 921; a base sleeve 922 extending from an edge of the base plate 921 to an upper side; and a screw tube 923 extending from the center of the top surface of the base plate 921.

Specifically, a plurality of guide projections 927 are projected in a radial direction from the base sleeve 922, and the plurality of guide projections 927 are arranged at intervals in a circumferential direction of the base sleeve 922.

The guide protrusion 927 may be formed by bending and extending the base sleeve 922. The guide protrusion 927 may include: a pair of side surface portions extending in a radial direction of the base plate 921 and facing each other; and a front surface portion connecting the pair of side surface portions.

A screw hole 924 is formed inside the screw tube 923, and a screw thread is formed on an inner circumferential surface of the screw hole 924.

A plurality of ribs 926 may extend in a radial direction on an outer circumferential surface of the screw tube 923. The lower end portion of the inner spring 94 is placed in a space between the end portions of the plurality of ribs 926 and the inner peripheral surface of the base sleeve 922. Therefore, the plurality of ribs 926 perform a function of preventing the radial direction swing of the inner spring 94 in addition to a function of reinforcing the strength of the screw tube 923.

In addition, one or more air holes 928 (or slits) may be formed in the base plate 921.

Fig. 19 is a perspective view of a housing constituting a cushion member of the embodiment of the present invention.

Referring to fig. 19, a case 91 constituting a cushion member 90 of an embodiment of the present invention may include: a circular or polygonal shaped bottom plate 911; and a housing bushing 912 extending upward from a top surface of the base plate 911 to have a diameter smaller than that of the base plate 911.

Specifically, a spring flange 913 is bent and extended upward from an edge of the bottom plate 911. Further, a top surface of the base plate 911 corresponding to between the spring flange 913 and the case bushing 912 may be defined as a spring seating portion 914 in which a lower end portion of the outer spring 93 is seated.

A pair of guide ribs 915 extend from the inner circumferential surface of the housing sleeve 912, and a plurality of guide portions formed by the pair of guide ribs 915 may be arranged in the circumferential direction of the housing sleeve 912.

The guide projection 927 of the inner case 92 is inserted into the space between the pair of guide ribs 915. Therefore, the guide portions constituted by the pair of guide ribs 915 may be formed on the inner peripheral surface of the case sleeve 912 by the number corresponding to the number of the guide projections 927.

A screw hole 916a may be formed at the center of the base plate 911, and a support sleeve 916 extends at the edge of the screw hole 916a so as to support the lead screw 99 penetrating the screw hole 916 a.

A plurality of air holes 917 may be formed in the bottom plate 911 to be spaced apart in a circumferential direction. The plurality of air holes 917 may be formed in a long hole shape extending in a curved manner along the circumferential direction of the bottom plate 911, but the size or shape of the air holes 917 is not limited thereto.

Also, a plurality of shaking prevention ribs 918 may be protruded on the top surface of the bottom plate 911 corresponding to the inner side edge of the housing sleeve 912.

The shaking prevention rib 918 protrudes from the inner circumferential surface of the housing sleeve 912 toward the center of the base plate 911, and may be formed in a semicircular or elliptical shape.

Fig. 20 is a plan view showing a coupled state of an outer casing, an inner casing, and a lead screw constituting a pad member of an embodiment of the present invention.

Referring to fig. 20, the pair of guide ribs 915 formed on the outer case 91 are respectively closely attached to both side surface portions of the guide projection 927 formed on the inner case 92.

In detail, since the guide projection 927 is supported by the guide rib 915, it is possible to prevent a phenomenon that the inner case 92 idles in a circumferential direction when it is lifted and lowered.

When the inner case 92 is lowered to the bottom surface of the outer case 91, the shaking prevention rib 918 comes into contact with the outer circumferential surface of the inner case 92. As a result, noise can be prevented from being generated when the inner case 92 is swung in the radial direction.

Fig. 21 is a longitudinal sectional view of the cushion member of the embodiment of the present invention, taken along 21-21 of fig. 14 in a state where no external force is applied, and fig. 22 is a longitudinal sectional view of the cushion member of the embodiment of the present invention, taken along 21-21 of fig. 14 in a state where an external force is applied.

Referring to fig. 21 and 22, as the lead screw 99 is rotated in a clockwise direction or a counterclockwise direction, the height of the inner housing 92 is adjusted.

In detail, in a basic state where no external force is applied, the upper end portion of the inner spring 94 may or may not contact the buffer 96 depending on the height of the inner housing 92.

In this state, when a vertical external force acts on the top surface of the pad member 90, the upper cover 97 is lowered to simultaneously compress the outer spring 93 and the inner spring 94, or simultaneously compress the inner spring 94 after compressing the outer spring 93, thereby adjusting the pad strength of the pad member 90.

Fig. 23 is a side perspective view of an intensity adjustment module according to an embodiment of the present invention, and fig. 24 is a bottom perspective view of the intensity adjustment module.

Referring to fig. 23 and 24, the strength adjustment module M1 constituting the cushion strength control unit according to the embodiment of the present invention is characterized in that the strength of the cushion member is automatically adjusted by the rotational force supplied from the driving motor.

In detail, the strength adjustment module M1 of the present embodiment may include a module case 21, a plurality of pad members 90 mounted on the module case 21, and a driving means for uniformly adjusting pad strengths (or elastic strengths) of the plurality of pad members 90 at a time.

The module case 21 may include a bottom case 23 and an upper case 22, and a space defined between the bottom case 23 and the upper case 22 may accommodate the driving means.

The drawing shows a case where one strength adjustment module M1 is constituted by eight pad members 90, but the number of pad members 90 is not limited thereto.

Fig. 25 is an exploded perspective view of a strength adjustment module according to an embodiment of the present invention, and fig. 26 is an exploded perspective view showing a bottom surface portion structure of a module case constituting the strength adjustment module.

Referring to fig. 25 and 26, the strength adjustment module M1 according to an embodiment of the present invention may include a module case 21, a plurality of pad members 90, and a driving means.

The drive means may comprise a drive motor 24 and a gear assembly 25. The driving motor 24 may be defined as a rotational force transmitting member that transmits a rotational force for operating the gear assembly 25.

The upper case 22 may include: a frame 221 having a predetermined height and formed in a rectangular shape; and an inner plate 222 formed inside the outer frame 221.

The inner plate 222 is formed at a position spaced a predetermined distance upward from the lower end of the outer frame 221, thereby dividing the inner space of the upper case 22 into an upper space and a lower space.

The gear assembly 25 is received in the lower space of the upper case 22, and the plurality of pad members 90 are placed in the upper space of the outer frame 221.

A plurality of gear shafts 225 are projected from the bottom surface of the inner plate 222, and a gear to be described later is rotatably mounted on the plurality of gear shafts 225.

A plurality of dividing plates 223 are protruded on the top surface of the inner plate 222 so that the upper space of the outer frame 221 can be divided into a plurality of small spaces.

The plurality of reticles 223 can include: a plurality of horizontal reticles extending along the width direction of the upper housing 22 and arranged at equal intervals in the length direction; and a longitudinal reticle extending along a length direction of the upper case 22. The vertical reticle bisects the upper space of the outline frame 221 in the left and right directions.

The number of the vertical reticles is determined according to the number of the configuration rows of the plurality of pad members 90, and the number of the horizontal reticles is determined according to the number of the configuration rows of the plurality of pad members 90.

Support sleeves 224 extend in the plurality of small spaces defined by the horizontal and vertical reticles, respectively, and through-holes 224a may be formed in the inner plate 222 at positions corresponding to the inner sides of the support sleeves 224.

The heights of the support sleeve 224 and the reticle 223 may be the same, and the inner diameter of the support sleeve 224 is formed to have a size corresponding to the outer diameter of the pad member 90.

The through hole 224a is formed to have a diameter smaller than the inner diameter of the support sleeve 224, and a seating surface 224b is formed on the inner bottom surface of the support sleeve 224, thereby supporting the bottom surface edge of the pad member 90.

Also, the diameter of the through hole 224a is formed in a size corresponding to the outer diameter of the transmission gear 990, and when the pad member 90 is seated inside the support sleeve 224, the transmission gear 990 passes through the through hole 224a and is exposed to the lower space of the outline frame 221.

In addition, a sealing member 26 is installed at an edge of a lower space of the upper case 22, so that it is possible to minimize an inflow amount of foreign substances through a coupling portion of the lower case 23 and the upper case 22. Further, it is possible to minimize the degree of leakage of noise generated when the gear is driven in the lower space of the outer frame 221 to the outside.

Also, the bottom case 23 may include a bottom surface portion 231 and a sidewall 232 extending upward from an edge of the bottom surface portion 231. The side wall 232 is closely attached to an inner circumferential surface of the outer frame 221 defining a lower space of the upper case 22. The sealing member 26 may be closely attached to the upper end of the side wall 232, or may be interposed between the outer circumferential surface of the upper end of the side wall 232 and the inner circumferential surface of the outer frame 221.

A plurality of shaft holes 233 may be formed at positions of the bottom surface portion 231 corresponding to positions directly below the plurality of gear shafts 225.

However, in the case where the length of the gear shaft 225 is formed to correspond to the height of the lower space of the upper case 22, the shaft hole 233 may not be formed.

In other words, when the gear shaft 225 extends by a length corresponding to a distance between the bottom surface of the inner plate 222 and the top surface of the bottom surface portion 231 in a state where the bottom case 23 is coupled with the upper case 22, the shaft hole 233 may not be formed.

A motor case 235 for accommodating the driving motor 24 may be protruded from a bottom surface of the bottom surface 231.

The motor case 235 may be recessed from a portion of the bottom surface 231 to a lower side by a predetermined depth or formed to have a step.

Alternatively, a communication hole may be formed in the bottom surface portion 231, and an additional housing member may be coupled to a bottom surface of the bottom surface portion 231 corresponding to a position just below the communication hole, thereby defining the motor housing 235.

In addition, the gear assembly 25 constituting the driving means may include: a driving gear 251 connected to a rotation shaft of the driving motor 24; and a plurality of driven gears 252 disposed between the driving gear 251 and the adjacent driving gear 990.

Here, a gear directly connected to the driving gear 251 may be defined as a driven gear, and a gear interposed between adjacent driving gears 990 is defined as an idle gear.

Alternatively, the plurality of driven gears 252 may each be defined as an idler gear.

Although the gear shaft 225 may extend from the bottom surface of the inner plate 222, it may extend from the top surface of the bottom surface portion 231 to the upper side.

The gear shaft 225 may be understood to include: a driven gear shaft to which a driven gear 252 meshed with the driving gear 251 is mounted; and an idle gear shaft to which an idle gear engaged with the transmission gear 990 is mounted.

In addition, a spacer 234 may be disposed at the center of the bottom surface portion 231, specifically, in a space corresponding to a space between two rows of transmission gears 990 arranged along the longitudinal direction of the module case 21.

The spacer 234 performs a function of preventing the driven gear 252 (or an idle gear) from shaking in the width direction of the module case 21 to break the gear coupling.

Also, the spacer 234 is formed to have a height corresponding to the interval between the inner plate 222 and the bottom surface portion 231, thereby performing a function of preventing the inner plate 222 from drooping.

Fig. 27 is a cut-away perspective view of the strength adjustment module of the embodiment of the present invention taken along the section 27-27 of fig. 23, and fig. 28 is a bottom view of the strength adjustment module of the embodiment of the present invention with a bottom case removed.

Referring to fig. 27 and 28, the driving gears 990 and the driven gears 252 are alternately connected to each other, and the driving gears 990 are rotated in the same direction by the driven gears 252.

In detail, the rotational force supplied from the driving motor 24 is transmitted to the driven gear 252 through the driving gear 251, and the rotational force transmitted to the driven gear 252 is sequentially transmitted to the driving gear 990 and the driven gear 252 (or the idle gear).

A gear directly connected to the driving gear 251 may be defined as the driven gear 252, and a gear disposed between adjacent driving gears 990 may be defined as an idle gear.

Further, as shown in the drawing, the driving gear 251 may be engaged with the driven gear row located on the outermost side, but it is not excluded that it is engaged with a plurality of driven gear rows located on the inner side other than the outermost side.

According to the above-described configuration, when the pad strength is set by an input unit (not shown) provided in the bed, the drive motor 24 is rotated. When the driving motor 24 is rotated, the rotational force is transmitted to the gear assembly 25, thereby controlling the plurality of pad members 90 constituting the unit strength adjusting module to have the same elastic strength.

Although the description has been given in the present embodiment taking as an example the case where the pad members are provided in two rows and a plurality of pad members of each row are combined with the driven gear wheel via the transmission gear, a structure in which one or more than three rows of pad members are provided may be realized.

In the case where a plurality of pad members are provided in a row, a driven gear 252 may be connected to the driving gear 251.

In the case where three or more rows of pad members are provided, when the idle gear is disposed between adjacent driven gears, the pad strength of the three or more rows of pad members can be controlled by one drive motor 24.

Fig. 29 is a bottom perspective view of a bed of a first embodiment of the invention provided with a drying module, and fig. 30 is a longitudinal section of the bed taken along 30-30 of fig. 29.

Referring to fig. 29 and 30, a drying module 50 for supplying indoor air to dry the top 12 may be installed on the bottom surface of the bed 10 according to the first embodiment of the present invention.

In detail, a suction port 131 for sucking indoor air may be formed at a portion of the shielding plate 13 on the user's foot side. This is because the portion of the shield plate 13 on the user's head side is generally closely attached to the indoor wall.

Therefore, the suction port 131 may be formed in the shielding plate 13 except for a portion closely attached to the indoor wall according to the installation condition of the bed 10. For example, the suction ports 131 may be formed at portions of the shielding plate 13 corresponding to both side surfaces of the bed 10, i.e., portions adjacent to both shoulders of the user.

In addition, the suction port 131 is formed at a portion of the shielding plate 13 adjacent to the lower end thereof, and the suction port 131 may be connected to an indoor air suction part formed at the drying module 50.

The indoor air flowing into the drying module 50 through the suction port 131 is discharged toward the top member 12 through an indoor air discharge portion formed in the drying module 50.

As shown in fig. 30, the drying module 50 is formed with a plurality of indoor air discharge portions arranged to face the top member 12. Therefore, the indoor air is discharged upward from the drying module 50, passes through the strength control unit 20, and flows toward the top member 12, thereby drying the top member 12.

Since the top member 12 is molded of memory foam of a porous material, a part of the indoor air colliding with the bottom surface of the top member 12 can permeate through the top member 12.

Further, the rest of the air colliding with the top 12 spreads toward the bottom edge of the top 12 and rises along the side of the top 12. The air rising along the side of the top piece 12 flows through the space between the bed cover 11 and the top surface of the top piece 12 and in the process evaporates the moisture penetrating the top surface of the top piece 12.

The indoor air discharge unit of the drying module 50 is not completely closely attached to the bottom surface of the motion control unit 30. Therefore, the indoor air discharged from the indoor air discharge unit rises through the gaps formed by the motion control unit 30, and can be uniformly dispersed over the entire bottom surface of the top member 12.

Hereinafter, the structure of the drying module 50 will be described in detail with reference to the accompanying drawings.

Fig. 31 is a perspective view of a drying module provided in a bed of the first embodiment of the present invention.

Referring to fig. 31, a drying module 50 of an embodiment of the present invention may include: a blowing fan 53 for sucking indoor air; a suction duct 52 having one end connected to a suction hole of the blower fan 53; a filter unit 51 disposed at the other end of the suction duct 52; a supply duct 54 having one end connected to a discharge hole of the blower fan 53; and a plurality of discharge pipes 55 connected to the discharge ports of the supply pipes 54.

In detail, the other end of the suction duct 52 to which the filter unit 51 is mounted may be defined as an indoor air suction part of the drying module 50, and the discharge port 551 formed at the discharge duct 55 may be defined as an indoor air discharge part of the drying module 50.

The filter unit 51 may be installed at the other end of the suction duct 52, i.e., the suction port, or may be installed at the suction port 131 formed in the shielding plate 13.

Since the drying module 50 is fixedly installed at the motion control unit 30, when the motion control unit 30 is tilted, the drying module 50 is also tilted together.

Therefore, the suction duct 52 may be formed by a combination of a bendable soft duct 522 and a non-bendable hard duct 521. The supply duct 54 may be formed by a combination of a hard duct 541 and a soft duct 542, as in the suction duct 52.

The soft tubes 522, 542 may be bellows-shaped tubes.

The soft tubes 522, 542 may be disposed in a region where the hinge axis of the motion control unit 30 is located. For example, the soft tubes 522 and 542 may be disposed at a position where the upper body frame 31 and the hip frame 32 meet each other, at a position where the hip frame 32 and the thigh frame 33 meet each other, and at a position where the thigh frame 33 and the lower leg frame 34 meet each other. In other words, the soft tubes 522 and 542 may be disposed below the separator 40.

The drying modules 50 may be arranged in a row according to the specification of the bed 10, or may be arranged in a plurality of rows in the width direction of the bed 10.

Although one suction port is formed at the blowing fan 53, a plurality of discharge ports may be formed, and as a result, one suction duct 52 may be connected to the blowing fan 53 and a plurality of supply ducts 54 may be connected to the blowing fan 53.

The blower fan 53 may be a centrifugal fan that sucks air in the axial direction and discharges the air in the radial direction, and may include a turbo fan, for example.

The blowing fan 53 may include a fan and a fan housing accommodating the fan, and a suction port may be formed at a bottom surface of the fan housing and a plurality of discharge ports may be formed at a side surface of the fan housing.

As shown, a pair of discharge ports are formed at the side of the fan housing, and may be formed at positions facing each other. Thus, the pair of supply ducts 54 may be arranged in a row extending in opposite directions from the fan housing by a predetermined length. However, the angle formed by the pair of supply ducts 54 may be less than 180 degrees depending on the inclination of the motion control unit 30.

A plurality of discharge ports may be formed in the top surface of the supply pipe 54, and the plurality of discharge ports may be arranged at intervals in the longitudinal direction of the supply pipe 54.

The plurality of discharge ports may be connected to the plurality of discharge pipes 55, respectively. The plurality of discharge ducts 55 and the supply duct 54 may be injection molded as a single body. Alternatively, the plurality of independent discharge pipes 55 may be coupled to the supply pipe 54.

Each of the plurality of discharge pipes 55 may have a predetermined width and extend a predetermined length in a direction intersecting the longitudinal direction of the supply pipe 54.

The discharge duct 55 is open at the top surface and has the discharge port 551 formed at the bottom surface. The discharge port 551 is naturally in communication with a discharge port formed in the top surface of the supply duct 54.

The discharge port 551 has a predetermined width, extends a predetermined length along the longitudinal direction of the discharge duct 55, and may be configured in a slit form.

In the case where the discharge port 551 is in the form of a narrow slit, the velocity of the air discharged through the discharge port 551 is increased, and therefore the air discharged through the discharge port 551 can efficiently reach the top member 12.

The width of the discharge duct 55 may be formed to a length corresponding to the width of the partition 40, but the present invention is not limited thereto.

In case one drying module 50 is provided at the bottom of the bed 10, the discharge duct 55 may extend in a length corresponding to the width of the bed 10, in particular the width of the top piece 12.

The suction duct 52 is illustrated as extending substantially parallel to the supply duct 54 below the supply duct 54, but the present invention is not limited thereto. As another example, the suction duct 52 may extend in a direction perpendicular to the supply duct 54, that is, in the width direction of the bed 10.

Since the shorter the length of the suction duct 52, the lower the flow resistance of the air, the suction port of the suction duct 52 may be located at one side of the bed 10.

Fig. 32 is a perspective view of a bed according to a second embodiment of the present invention, and fig. 33 is a longitudinal sectional view of the bed taken along line 33-33 of fig. 32.

Referring to fig. 32 and 33, a bed 10a according to a second embodiment of the present invention is characterized in that the strength control unit 20 and the motion control unit 300 of the second embodiment are integrally configured, and the top member 12 is separable from the strength control unit 20.

In detail, the top piece 12 may be provided in a manner enclosed by the bed cover 11. Although it appears that the thickness of the top piece 12 is thicker than the thickness of the top piece 12 provided in the previous embodiments, the present invention is not limited thereto.

Also, a drying module 500 is provided at a lower side of the motion control unit 300, and the drying module 500 may be integrally coupled to the motion control unit 300. That is, when the motion control unit 300 is tilted, a portion of the drying module 500 positioned at a lower side of the tilted portion may be tilted together.

Also, like the drying module 50 provided in the bed 10 of the first embodiment, the drying module 500 sucks in indoor air and supplies it to the top 12 side, thereby drying the top 12.

As in the first embodiment, the strength control unit 20 may be defined as an aggregate of the strength adjusting module M1 and the partition 40.

The bed 10a of the second embodiment of the present invention may further include a guard frame 60(guard frame) accommodating the strength control unit 20 and the motion control unit 300.

The shield frame 60 performs the function of the shield plate 13 described in the first embodiment, and at the same time, performs the function of supporting the motion control unit 300. In other words, the motion control unit 300 of the second embodiment is integrally coupled to the inside of the shield frame 60, and at least a part thereof can be tilted in a state of being coupled to the shield frame 60.

The bed 10a may further include a plurality of legs 70 coupled to corners of the guard frame 60.

The bottom surface of the guard frame 60 is spaced apart from the installation surface by the length of the legs 70, so that a coupling member (to be described later) constituting the motion control unit 300 can be prevented from contacting the installation surface.

Wherein the provision of the legs 70 may also be unnecessary when the guard frame 60 is designed to have a height high enough to avoid contact of structural elements of the motion control unit 300 with a setting surface during operation of the motion control unit 300.

That is, the legs 70 may be omitted in a state where the bottom surface of the protection frame 60 is in contact with the installation surface and the motion control unit 300 and the drying module 500 are not in contact with the installation surface.

Hereinafter, the structure and operation of the motion control unit 300 and the drying module 500 of the second embodiment will be described in detail with reference to the accompanying drawings.

Fig. 34 is an exploded perspective view of a bed according to a second embodiment of the present invention, and fig. 35 is a bottom perspective view of a combination of an intensity control unit and a motion control unit.

The intensity control unit 20 may have the same structure as the intensity control unit 20 described in the first embodiment, and therefore, the description of the intensity control unit 20 is omitted.

Hereinafter, a structure in which the strength control unit 20 is combined with the motion control unit 300 will be described with reference to the drawings.

Referring to fig. 34 and 35, the protection frame 60 may include a head frame 62, a toe frame 63(toe frame), and a pair of side frames 61, and the protection frame 60 surrounds sides of the motion control unit 300 and the strength control unit 20 to be protected.

In detail, the head frame 62 configures an edge of the intensity control unit 20 adjacent to the head of the user when the user lies down. The toe frame 63 is disposed on the edge of the strength control unit 20 adjacent to the foot of the user.

The guard frame 60 may further include a connection member 64 provided at a corner portion where the four frames 61, 62, 63 meet. The connection member 64 is bent at 90 degrees so that the ends of two frames adjacent in the direction crossing each other are coupled to each other. Further, the four frames 61, 62, 63 are integrally connected by four connecting members 64, thereby forming a single supporting frame.

Edge plates 65 to which the upper ends of the legs 70 are coupled are formed at the lower ends of the corners of the shielding frame 60, and fixing brackets 66 are formed at the edge plates.

Support plates 67 are respectively placed on inner sides of lower end portions of the head frame 62 and the toe frame 63, and both end portions of the support plates 67 are inserted into the fixing brackets 66 to be supported. The fixing bracket 66 may be formed in an n-shape such that both end portions of the supporting plate 67 are inserted into the fixing bracket 66.

Bottom surfaces of one end portion (an end portion where a head portion of the user is located) and the other end portion (an end portion where a foot portion of the user is located) of the motion control unit 300 are placed on the support plate 67. This prevents the combination of the motion control means 300 and the strength control means 20 from sagging downward due to a load.

The center positions of both side surfaces of the motion control unit 300 may be fixed to the side frames 61 by fixing blocks (to be described later).

A fastening hole 611 is formed at a central portion of the side frame 61 so that the side frame 61 and the fixing block are coupled by a fastening member.

And, a coupling driving shaft connection end 612 may extend at a lower end portion of the side frame 61. A coupling drive shaft (to be described later) is rotatably connected to the coupling drive shaft connection end 612.

And, a separation preventing member 68 is provided at the upper end of the toe portion frame 63, so that the top member 12 can be prevented from being pushed to move downward in a state where the motion control unit 300 is inclined.

The disengagement preventing member 68 may be a part of the toe portion frame 63 or may be a separate member fastened to the toe portion frame 63.

The drying module 500 is disposed at a lower side of the strength control unit 20 and may be fixed to the motion control unit 300. Thereby, a portion of the drying module 500 can be tilted together with the motion control unit 300, as in the first embodiment.

Fig. 36 is a perspective view of a combination of a motion control unit and a shield frame according to a second embodiment of the present invention as viewed from above, and fig. 37 is a perspective view of a combination of a motion control unit and a shield frame according to a second embodiment as viewed from below.

Referring to fig. 36 and 37, the motion control unit 300 of the embodiment of the present invention may include a motion generator 3100, a kinematic coupling 3200, and a mounting frame 3300.

First, the mounting frame 3300 is a portion for placing the strength control unit 20, and a portion of the mounting frame 3300 is inclined by the driving force supplied from the motion generator 3100.

The mounting frame 3300 may include a pair of fixing blocks 3310, an upper body frame 3320, a lower body frame 3330, a cushion mounting plate 3340, and fixing rods 3350.

The pair of fixing blocks 3310 are fixed to inner side surfaces of the pair of side frames 61 constituting the shield frame 60, respectively, and face each other. In detail, a fastening member including a screw may penetrate the fastening hole 611 formed on the side frame 61 and be inserted into the fixing block 3310. The pair of fixing blocks 3310 may be located at the center of the side frames 61, but the present invention is not limited thereto.

One end portion of the upper body frame 3320 and one end portion of the lower body frame 3330 are rotatably coupled to the fixing block 3310, respectively.

The upper body frame 3320 may include: a pair of intermediate upper frames 3321 having one end portions rotatably coupled to the pair of fixing blocks 3310, respectively; and a pair of upper frames 3322 rotatably coupled to the other ends of the pair of middle upper frames 3321, respectively. The pair of intermediate upper frames 3321 and the pair of upper frames 3322 are arranged in parallel to each other.

Like the upper body frame 3320, the lower body frame 3330 may include: a pair of intermediate lower frames 3331 having one end portions rotatably coupled to the pair of fixing blocks 3310; and a pair of lower frames 3332 rotatably coupled to the other ends of the pair of intermediate lower frames 3331, respectively.

The cushion member seating plate 3340 connects the pair of frames disposed parallel to each other.

The mounting frame 3300 may also be defined as a structure including parallel-arranged linear bars and a cushion member mounting plate connecting the parallel linear bars.

For example, the upper frame 3322 may be defined as a structure including a pair of parallel linear rods and one or more cushion member seating plates connecting the pair of parallel linear rods.

Alternatively, a structure including a pair of linear rods facing each other and one or more cushion member seating plates connecting the pair of linear rods may be defined as the inclined portion. In this case, each of the upper body frame 3320 and the lower body frame 3330 may be described as including two inclined portions connected to each other in a relatively rotatable manner.

In more detail, the upper body frame 3320 may be described as including: a first inclined portion having one end rotatably connected to the fixed block 3310; and a second inclined portion rotatably connected to the other end of the first inclined portion.

In addition, the first inclined part may be described as including the pair of middle upper frames 3321 and one or more cushion member seating plates 3340 connecting the pair of middle upper frames 3321.

The second inclined part may be described as including the pair of upper frames 3322 and one or more pad member seating plates 3340 connecting the pair of upper frames 3322.

Likewise, the lower body frame 3330 may be described as including: a third inclined portion having one end rotatably connected to the fixed block 3310; and a fourth inclined portion rotatably connected to the other end of the third inclined portion.

Also, the third inclined portion may be described as including the pair of intermediate lower frames 3331 and one or more pad member seating plates 3340 connecting the pair of intermediate lower frames 3331.

The fourth inclined portion may be described as including the pair of lower frames 3332 and one or more pad member seating plates 3340 connecting the pair of lower frames 3332.

The concepts of the first to fourth inclined portions may also be similarly applied to the motion control unit 30 of the bed 10 of the first embodiment.

For example, the hip frame 32 constituting the motion control unit 30 of the bed 10 of the first embodiment may be defined as a fixed portion, the upper body frame 31 as a first inclined portion, the thigh frame 33 as a second inclined portion, and the shank frame 34 as a third inclined portion.

The order of the first to third inclined portions is not limited to the above examples. That is, one of the upper body frame 32, the thigh frame 33, and the calf frame 34 may be defined as a first inclined portion, one of the remaining two may be defined as a second inclined portion, and the other of the remaining two may be defined as a third inclined portion.

In addition, both ends of the fixing rod 3350 connect the bottom surfaces of the pair of fixing blocks 3310 to each other, so that the drooping phenomenon of the motion control unit 300 can be minimized. A transmission 3110 (to be described later) constituting the motion generator 3100 may be coupled to the fixed rod 3350.

Also, upper coupling connection ends 3323 are provided on bottom surfaces of the pair of upper frames 3322, respectively, and lower coupling connection ends 3333 are provided on bottom surfaces of the pair of lower frames 3332, respectively.

The combination of the motion generator 3100 and the kinematic coupling 3200 may be defined as a tilting force generating means.

The motion generator 3100 may include a transmission and a coupling drive shaft 3150 extending through the transmission. Both end portions of the coupling drive shaft 3150 are connected to the coupling drive shaft connection ends 612, respectively.

The coupling drive shaft 3150 may include a pair of shafts.

The pair of shafts constituting the coupling drive shaft 3150 may be defined as an upper coupling drive shaft penetrating a front end portion of the transmission and a lower coupling drive shaft penetrating a rear end portion of the transmission.

An installation groove is formed at an inner side surface of the coupling driving shaft connection end 612, into which an end of the coupling driving shaft 3150 can be inserted. Further, a plurality of ball bearings are arranged on an inner circumferential surface of the mounting groove, so that a minimum frictional force can be generated when the coupling driving shaft 3150 rotates.

Further, since both end portions of the coupling driving shaft 3150 are connected to the coupling driving shaft connecting end 612, the load of the motion generator 3100 and the motion coupling 3200 is supported by the protection frame 60.

The kinematic coupling 3200 may comprise: a pair of upper links 3210 connected to both end portions of the upper link drive shaft; and a pair of lower coupling members 3220 driving shafts connected to both end portions of the pair of lower coupling members 3220.

The upper and lower coupling members 3210 and 3220 may be provided one each and connected to the center of the coupling driving shaft 3150.

In detail, the upper link 3210 may include: a bracket 3211 extending from the upper coupling drive shaft to a lower side; a fixing link 3212 extending from an end of the bracket 3211; and a movable link 3213 rotatably connected to an end of the fixed link 3212. The end of the movable link 3213 is connected to the upper link connection end 3323.

The movable coupling 3213 may be fixedly coupled or rotatably coupled to the upper coupling connection end 3323.

In detail, the fixing link 3212 extends in a direction crossing the bracket 3211. Further, one end portion of the fixed link 3212 is fixed to the bracket 3211, thereby integrally rotating the upper link driving shaft and the bracket 3211 and the fixed link 3212.

And, the lower coupling 3220 may include: a bracket 3221 extending to the lower side from the lower coupling driving shaft; an arm link 3222 extending from the lower link drive shaft in a direction orthogonal to the bracket 3221; a fixed link 3223 having one end rotatably connected to an end of the bracket 3221; a connecting link 3224 having one end rotatably connected to the other end of the fixed link 3223; and a movable coupling 3225 having one end rotatably connected to the other end of the connecting coupling 3224.

The bracket 3221 and the arm coupling member 3222 may be formed of a single member bent in an L-shaped state. That is, the lower link drive shaft may be configured to pass through a member bent in an L-shape, and the member bent in the L-shape may be fixed to the lower link drive shaft.

In detail, the arm link 3222 may include: an arm link body extending horizontally from the lower link drive shaft; and a circular slider formed at an end of the arm link body. The slider is formed to have a diameter larger than the upper and lower widths of the arm link body so that only the top surface of the slider in the arm link 3222 can be brought into contact with the bottom surface of the lower frame 3332.

The top surface of the slider may be designed to slide while maintaining contact with the bottom surface of the lower frame 3332 so that the lower frame 3332 performs relative rotation with respect to the intermediate lower frame 3331 when the lower coupling drive shaft rotates.

And, the other end of the movable link 3225 may be rotatably connected to the lower link connection end 3333.

In view of the above, it is understood that the upper link 3210 is constructed of a two-joint link structure and the lower link 3220 is constructed of a multi-joint link structure including four-joint links, but the present invention is not limited thereto and may be constructed of various types of link members.

Fig. 38 is a cross-sectional view of the motion generator taken along 38-38 of fig. 37, and fig. 39 is a longitudinal sectional view of the motion generator taken along 39-39 of fig. 38.

Referring to fig. 38 and 39, a motion generator 3100 according to an embodiment of the present invention is a device that generates a driving force for rotating the coupling driving shaft 3150.

In detail, the motion generator 3100 may include a transmission and a coupling driving shaft 3150 connected to the transmission.

The transmission may include: a gear case 3110; a tilting motor 3120 accommodated inside the gear case 3110; a tilt gear 3130 connected to a rotation shaft 3121 of the tilt motor 3120; and a reduction gear 3140 engaged with the tilt gear 3130.

Further, the coupling drive shaft 3150 penetrates the gear case 3110 and is engaged with the reduction gear 3140 to rotate.

In the present embodiment, description is made taking the case where two tilting motors 3120 are provided, in which the two tilting motors 3120 independently drive the upper link drive shaft and the lower link drive shaft constituting the link drive shaft 3150, respectively.

This is to independently operate the upper and lower links 3210 and 3220, respectively, so that the upper and lower body frames 3320 and 3330 are inclined independently of each other.

The power generation and transmission structure provided inside the gear case 3110 is only one example, and may have various configurations. Further, the idea of the present invention should be understood to cover all forms of transmissions that generate power from the gear box 3110 and transmit the generated power to the coupling drive shaft 3150.

Fig. 40 is a perspective view showing an operation of a motion control unit according to a second embodiment of the present invention, and fig. 41 is a longitudinal sectional view of the motion control unit taken along 41-41 of fig. 40.

In the present embodiment, a case where both the body frame 3320 and the lower body frame 3330 are inclined is explained as an example.

Referring to fig. 40 and 41, when the motion generator 3100 is supplied with power and the tilting motor 3120 is operated, the coupling driving shaft 3150 rotates.

When the coupling driving shaft 3150 is rotated, the upper and lower couplings 3210 and 3220 are respectively rotated, whereby the upper and lower body frames 3320 and 3330 are respectively inclined at a prescribed angle as shown in the drawings.

In detail, the fixed link 3212 of the upper link 3210 is fixed to the bracket 3211, and the end of the movable link 3213 maintains a state of being connected to the upper frame 3322.

Therefore, when the upper coupling drive shaft rotates, the upper coupling 3210 rotates as shown in fig. 41, and the first inclined portion rotates upward from the horizontal plane by a prescribed angle. At the same time, the second inclined portion is rotated upward by a predetermined angle from a plane passing through the first inclined portion.

And, when the lower link driving shaft rotates, the bracket 3221 and the arm link 3222 rotate integrally. Further, the end of the arm link 3222 rotates upward to lift the lower frame 3332. At this time, the connecting portion between the intermediate lower frame 3331 and the lower frame 3332 is raised, and the state shown in fig. 41 is achieved.

Also, with the multi-link section of the lower link 3220, the one end portion and the other end portion of the lower frame 3332 are both assisted in rising.

If the arm coupling 3222 is rotated in the structure having only the arm coupling 3222, it is slid along the bottom surface of the lower frame 3332, thereby lifting only one end portion of the lower frame 3332 to which the intermediate lower frame 3331 is connected.

In other words, the other end portion of the lower frame 3332 hangs down due to gravity, or the other end portion of the lower frame 3332 maintains a horizontal state and slides toward the fixing block 3310 side.

Therefore, depending on manufacturing conditions or user's choice, the lower link 3220 may be designed to include only the arm link 3222, or may be designed to include not only the arm link 3222 but also a multi-link made up of the fixed link 3223, the connecting link 3224, and the movable link 3225.

In addition, when the upper body frame 3320 and the lower body frame 3330 are inclined, a gap may be generated between the upper body frame 3320 and the shield frame 60 or between the lower body frame 3330 and the shield frame 60.

Therefore, there is a possibility that foreign substances may enter the inside of the bed 10a through the gap, and a part of the body of a person other than the user may be caught and injured.

In order to prevent such a problem from occurring, a barrier film may also be provided.

The barrier film may include: an upper barrier film 75 connecting the upper body frame 3320 and the protection frame 60; and a lower barrier film 77 connecting the lower body frame 3330 and the protection frame 60.

The barrier film is composed of a cloth or an elastic band having elasticity, and may be configured in the form of a folded cloth or a pleated cloth having a function of a bellows such as an accordion.

Fig. 42 is a partially cut-away perspective view showing an enlarged state of a motion control unit in combination with an intensity control unit in the second embodiment of the present invention.

Referring to fig. 42, the strength control unit 20 is defined as an aggregate of a plurality of strength adjusting modules M1, each of which strength adjusting modules M1 includes a module case 21 and a plurality of pad members 90 mounted on the module case 21.

The module case 21 may include an upper case 22 and a bottom case 23. In addition, the strength control unit 20 and the motion control unit 300 constitute one assembly by combining the bottom case 23 with the pad member seating plate 3340. Furthermore, the top piece 12 is detachable from the strength control unit 20.

In detail, a plurality of fastening sleeves 236 may be formed on the bottom surface of the bottom case 23 at predetermined intervals. In addition, a plurality of fastening holes 3341 may be formed at the pad member seating plate 3340.

In addition, a fastening member S such as a screw may penetrate the fastening hole 3341 and be inserted into the fastening sleeve 236. That is, the module case 21 may be fixed to the cushion member seating plate 3340 using the fastening member S.

The embodiment as suggested in fig. 12 is a structure in which the fastening member S penetrates the module case 21 and is inserted into the cushion member seating plate 332, and the present embodiment is different from the embodiment as shown in fig. 12 in that the present embodiment is a structure in which the fastening member S penetrates the cushion member seating plate 3340 and is inserted into the fastening sleeve 236.

Fig. 43 is a perspective view of a drying module according to a second embodiment of the present invention, and fig. 44 is a longitudinal sectional view of the bed taken along 44-44 of fig. 43 in a state where the top member is placed on the upper side of the drying module.

Referring to fig. 43 and 44, the drying module 500 according to the second embodiment of the present invention may include: a blower fan 5300; a filter unit 5100 attached to an inlet of the blower fan 5300; a supply duct 5200 connected to the outlet of the blower fan 5300; a branch duct 5400 extending from a side surface of the supply duct 5200 in a direction intersecting the supply duct 5200; and a discharge conduit 5500 connected to the discharge port of the branch conduit 5400.

In detail, the drying module 500 may include a structure in which a suction duct is connected to a suction port of the blowing fan 5300, as in the drying module 50 of the first embodiment.

In the case of the bed 10a of the present embodiment, the drying module 500 is sufficiently spaced apart from the installation surface by the legs 70, so that there is a low possibility of flow resistance occurring in the process of sucking the indoor air, and thus, there is no need to provide an additional suction duct. However, in the configuration excluding the legs 70, the suction duct may be connected to the suction port of the blower fan 5300. In this case, the filter unit 5100 is installed at the inlet end of the suction duct.

The blower fan 5300 is preferably disposed at a position maximally spaced apart from the user's ear, so that inconvenience in use due to fan noise is minimized. Such a configuration is equally applicable to the bed 10 of the first embodiment.

Therefore, the blower fan 5300 is preferably disposed adjacent to the toe frame 63 of the protection frame 60.

The supply duct 5200 may be arranged at the center of the bottom surface of the bed 10a so as to extend from the discharge port of the blower fan 5300 in the longitudinal direction of the bed 10 a.

As in the previous embodiment, the supply pipe 5200 is constituted by a hard pipe 5210 and a soft pipe 5220 so as to be tiltable at a prescribed angle together with the motion control unit 300.

The flow dividing duct 5400 may be designed to extend in the width direction of the bed 10a from the left and right side faces of the supply duct 5200 and to curve its end portions to the upper side.

The discharge port of the flow diversion conduit 5400 is connected to the center of the bottom surface of the discharge conduit 5500, and a discharge port 5510 may be formed in a slit shape at the center of the bottom surface of the discharge conduit 5500. The top surface of the discharge duct 5500 may be opened so that the air discharged from the discharge port 5510 collides against the bottom surface of the partition 40.

The discharge conduit 5500 has a predetermined width on the upper side of the branch conduit 5400, and may extend in a direction parallel to the branch conduit 5400. The width of the discharge conduit 5500 may be designed to be a length corresponding to the width of the partition 40, but the present invention is not limited thereto.

As shown in fig. 13 and 44, the spacer 40 may be composed of a main body 41 and fins 43, and a plurality of vent holes 44 may be formed in the main body 41.

The plurality of vent holes 44 are formed in a region corresponding to a region directly above the discharge duct 5500, and air discharged from the discharge duct 5500 can be ejected toward the top member 12 through the vent holes 44.

Due to the structural characteristics of the strength control unit 20, when the spit pipe 5500 is placed at the lower side of the module case 21, the air spitted from the spit pipe 5500 is diffused sideways, so that the amount of air reaching the top member 12 may be significantly reduced.

Therefore, by disposing the discharge conduit 5500 below the partition 40 having the plurality of vent holes 44, most of the air discharged from the discharge conduit 5500 can be guided to the top member 12 through the partition 40.

Further, the air that failed to pass through the partition 40 is diffused sideways and guided toward the top member 12 through the gap formed between the strength adjusting units M1.

Fig. 45 is a perspective view of a bed according to a third embodiment of the present invention as viewed from above, fig. 46 is a perspective view of the bed according to the third embodiment of the present invention as viewed from below, fig. 47 is an exploded perspective view of the bed according to the third embodiment of the present invention, and fig. 48 is a longitudinal sectional view of a mattress set taken along line 48-48 of fig. 45.

Referring to fig. 45 to 48, the bed 10b according to the third embodiment of the present invention is characterized in that the strength control unit 20 is separated from the motion control unit 300, and the top member 12 and the strength control unit 20 are formed as a single body by the bed cover 11.

In detail, the bed 10b may include: a shield frame 60; a motion control unit 300 coupled to the shield frame 60; and a mattress set MS detachably installed at the motion control unit 300. In addition, the bed 10b may further include a plurality of legs 70 extending from lower ends of four corners of the shielding frame 60 according to design conditions.

The structures of the guard frame 60, the motion control unit 300, and the drying module 500 combined to the motion control unit 300 proposed in the present embodiment may be the same as those of the guard frame 60, the motion control unit 300, and the drying module 500 constituting the bed 10a of the second embodiment. Therefore, a repeated explanation of these structural elements is omitted, and the explanation of the second embodiment is continued.

In more detail, the mattress set MS may include a mattress and a module seating plate 80 for seating the mattress. The mattress set MS may also be understood as further comprising a bed cover 11 enclosing the mattress and the module placement plate 80, according to the method of definition.

As explained in the structure of the bed 10 of the first embodiment, the mattress can be defined to include the topper 12 and a strength control unit 20 that positions the topper 12 on top.

Also, the mattress set MS may further include a guard plate 13 surrounding the strength control unit 20 and a side of the module seating plate 80 according to design conditions. The protection plate 13 has already been explained in the description of the bed 10 of the first embodiment, and a repeated explanation thereof will be omitted.

As above, the intensity control unit 20 is defined to include a plurality of intensity adjustment modules M1 and a plurality of spacers 40 disposed between the plurality of intensity adjustment modules M1.

Fig. 49 is a perspective view of a module installation plate of a mattress set constituting a bed according to a third embodiment of the present invention, fig. 50 is a partial longitudinal sectional view of the module installation plate taken along 50-50 of fig. 49, and fig. 51 is a partial longitudinal sectional view of the module installation plate taken along 50-50 of fig. 49 in a state of being inclined by a motion control unit.

Referring to fig. 49 to 51, the module seating plate 80 of the embodiment of the present invention is a part for seating a plurality of intensity adjustment modules M1 constituting the intensity control unit 20. In detail, the plurality of strength adjustment modules M1 may be fixed on the top surface of the module seating plate 80.

The module seating plate 80 may be defined as a support structure or a plate structure constituted by a plurality of plates combined in a relatively rotatable manner corresponding to the number of inclined portions constituting the seating frame 3300 of the motion control unit 300.

In detail, the module seating plate 80 may include an upper seating plate 81 and a lower seating plate 82, like the seating frame 3300. The upper seating plate 81 is placed on the upper side of the upper body frame 3320, and the lower seating plate 82 is placed on the upper side of the lower body frame 3330.

In more detail, the upper seating plate 81 may include: an upper plate 810; and an intermediate upper plate 820 having one end rotatably coupled to an end of the upper plate 810. The upper plate 810 is placed on the upper side of the second inclined portion, and the middle upper plate 820 is placed on the upper side of the first inclined portion.

Also, the lower seating plate 82 may include: an intermediate lower plate 830 having one end rotatably coupled to the other end of the intermediate upper plate 820; and a lower plate 840 rotatably coupled to the other end of the middle lower plate 830.

The intermediate lower plate 830 is placed on the upper side of the third inclined portion, and the lower plate 840 is placed on the upper side of the fourth inclined portion.

A plurality of fastening holes 811, 821, 831, 841 are formed in the plates 810, 820, 830, 840, respectively. In a state where the plurality of strength adjusting modules M1 are mounted on the module mounting plate 80, a plurality of fastening members including screws penetrate the fastening holes 811, 821, 831, 841 and the strength adjusting module M1.

As an example, the configuration described in fig. 42 may be employed. That is, the fastening member S may be inserted into the fastening holes 811, 821, 831, 841 in a state in which the fastening sleeves extending from the bottom surface of the bottom case 23 are inserted into the fastening holes.

As shown in fig. 50 and 51, the plates adjacent to each other are connected to each other in a bendable manner by one or a plurality of joint plates 85 and a plurality of joint hinges 86.

With the plurality of joint plates 85 and the joint hinge 86, the plurality of plates maintain a state of being connected to each other and can be bent.

For example, a plurality of extension ends 832 and 842 are respectively projected from the end portions of the adjacent plates facing each other, and the plurality of extension ends 832 and 842 are arranged at a predetermined interval in the width direction of the module placement plate 80.

When the end portions of the two adjacent plates facing each other are in close contact with each other, the extended end protruding from the end portion of one of the two adjacent plates and the extended end protruding from the end portion of the other plate are alternately arranged in the width direction of the module placement plate 80. That is, the extension ends extending from the side surfaces of the two plates are engaged with each other like the engaging structure of the gears.

In this state, the articulation hinge 86 extends through the elongated end, thereby allowing the two contacting plates to rotate relative to each other.

As described above, in the case where two plates are directly connected by the joint hinge 86, there is a disadvantage that the degree of freedom of bending of the plates is low. In which the degree of freedom of bending of the plates may be defined as a radius of curvature of a curve (refer to a dotted line of fig. 51) connecting two plates in a state where the two plates connected to each other are inclined.

For example, a high degree of freedom of bending means that the radius of curvature of the curve connecting the two plates is large. That is, it can be understood that the higher the degree of freedom of bending, the more the plate can be bent in such a manner as to maintain a large radius of curvature.

When the joint plate 85 is interposed between two adjacent plates, the degree of freedom in bending of the plates can be increased. Further, the greater the number of the interposed joint plates 85, the more the degree of freedom of bending of the plates can be improved.

In the present embodiment, three joint plates 85 are interposed between two adjacent plates, but the present invention is not limited to this, and an appropriate number may be selected according to the maximum inclination angle of the inclined portion.

Grooves for receiving a plurality of elongated ends 832, 842 protruding from the sides of the articulating plate 85 are formed at both ends of the plate. Thus, the side surface of the joint plate 85 and the side surface of the plate constituting the module placement plate 80 are engaged with each other in a gear coupling manner. In addition, when the joint hinge 86 in the form of a circular rod penetrates the elongated ends 832 and 842 and the groove of the joint plate 85, the joint hinge 86 functions as a rotation shaft of the plate and the joint plate 85.

Wherein a portion to connect adjacent two plates using the one or more articulated plates 85 may be defined as an articulated portion. That is, the articulation curve may be defined as including one or more articulation plates 85 and one or more articulation hinges.

Fig. 52 is an exploded perspective view of a mattress set and a drying module constituting a bed of a third embodiment of the present invention, and fig. 53 is a longitudinal sectional view of the bed of the third embodiment of the present invention taken along 53-53 of fig. 46.

Referring to fig. 52 and 53, a plurality of communication holes 111 are formed in the bottom surface of the mattress set MS so that the air supplied from the drying module 500 can be guided toward the top 12.

The plurality of communication holes 111 may be formed at positions corresponding to the lower side of the knuckle bending part. The communication hole 111 may be formed by cutting a part of the bottom surface of the bedspread 11 covering the top member 12 and the strength control unit 20.

A discharge duct 5500 constituting the drying module 500 may be disposed directly below the air vent 111. That is, the communication holes 111 may be provided in a number corresponding to the number of the discharge conduits 5500.

When the mattress set MS is seated on the motion control unit 300, the communication hole 111 and the discharge duct 5500 are aligned in a vertical direction, so that the air discharged from the discharge duct 5500 can be supplied to the inside of the mattress set MS through the communication hole 111.

The air discharged from the discharge duct 5500 may rise through a gap formed in the articulated portion and be guided to the spacer 40. Therefore, as shown in fig. 44, when the partition 40 has a plurality of vent holes 44, air can be easily transferred to the top member 12.

The blower fan 5300 is configured to be positioned under the user's feet when the user lies down, so that it is possible to minimize a phenomenon in which the user cannot deeply sleep due to fan noise.

And, it may be designed such that the distance from the inner side surface of the head frame 62 to the inner side surface of the toe frame 63 is longer than the length of the mattress set MS. In addition, it may be designed that the upper end portion of the toe section frame 63 is higher than the bottom surface portion of the mattress group MS in a state where the mattress group MS is placed on the motion control unit 300.

Thus, when the upper body frame 3320 is inclined upward, the rear end portion of the mattress set MS, i.e., the side surface of the mattress set MS adjacent to the user's foot, is caught by the toe portion frame 63, so that it is possible to prevent the phenomenon that the mattress set MS slides on the motion control unit 300.

As another method, as described above, the disengagement preventing member 68 may be projected at the upper end of the toe portion frame 63.

In addition, since the support legs 70 are provided, there is no need to provide an additional suction duct extending horizontally to the suction port of the blower fan 5300.

Fig. 54 is a perspective view of the motion control unit showing a state in which the upper body frame is inclined.

Referring to FIG. 54, as in the second embodiment, the upper body frame 3320 and the guard frame 60 may be connected using an upper barrier film 75 and the lower body frame 3330 and the guard frame 60 may be connected using a lower barrier film 77.

The barrier films 75 and 77 prevent the space between the set frame 3300 and the protection frame 60 from being exposed to the outside, thereby preventing the entry of impurities.

Further, the supply pipe 5200 is configured such that a portion thereof inclined integrally with the upper body frame 3320 and the lower body frame 3330 is configured by a hard pipe 5210 and another portion thereof is configured by a soft pipe 5220, and thus can be bent together with the upper body frame 3320 and the lower body frame 3330.

Fig. 55 is a perspective view of a strength adjusting module according to an embodiment of the present invention in which a buffer plate is combined to a top surface of a pad member, and fig. 56 is a bottom perspective view of the buffer plate.

Referring to fig. 55 and 56, the buffer plate 700 is provided to prevent the back or waist of the user from being lifted up by the cushion member 90 due to the compression of the top member 12 when the user lies in the bed.

In detail, the top member 12 may be formed of a memory cotton material that is compressed flatly by a vertical load and then returns to an original state when the load is removed.

In the case where the thickness of the top member 12 is too thin, or the user's weight is much over average, the top surface of the pad member 90 presses the back or waist of the user due to the large amount of compression of the top member 12, which may cause discomfort to the user.

In particular, since there are gaps between the plurality of pad members 90, the user's back or waist may feel uncomfortable being pushed up by the pad members 90 when lying down for a long time.

To prevent such a phenomenon, a buffer plate 700 may be interposed between the top part 12 and the pad member 90.

The buffer plate 700 may be configured with one for each column of the strength adjustment modules M1.

In detail, the length of the buffer plate 700 may be designed to a length corresponding to the width of the top 12, and the width of the buffer plate 700 may be designed to a length corresponding to the width of the strength adjustment module M1. Here, the width of the buffer plate 700 indicates a short side and the length indicates a long side.

Also, the buffer plate 700 may include: a buffer body 710 having a prescribed thickness, width and length; and a plurality of pad member receiving grooves 711 formed at the bottom surface of the buffer main body 710.

The plurality of pad member receiving grooves 711 receive the upper end portions of the pad members 90. Therefore, even if the mattress group SM is inclined by the motion control unit 300, it is possible to minimize a phenomenon in which adjacent cushion members collide with each other or are bent. That is, the pad member receiving groove 711 may be understood to perform the same function as the pad member receiving groove 123 described above with reference to fig. 5 and 6.

The following describes a method in which the bed of the embodiment of the present invention automatically adjusts the pad strength of the strength control unit by monitoring the sleep posture of the user, thereby providing an optimal sleep state or an optimal sleep posture.

Fig. 57 is a view showing a portion where the body weight is concentrated when the user lies on the body pressure sensing thin plate provided in the bed according to the embodiment of the present invention, and fig. 58 is a view showing a portion where the body weight is concentrated when the user lies on the side on the body pressure sensing thin plate.

Referring to fig. 57 and 58, the bed 10, 10a, 10b according to the embodiment of the present invention may further include a body pressure sensing sheet PA that senses the body pressure of the user.

In detail, the body pressure-sensing sheet PA may include a fiber type pressure sensor that is thin like clothing and has high flexibility.

For example, the body pressure sensing sheet PA may include: a first layer arranged in a transverse direction and including a plurality of first lines capable of being used as electrodes; a second layer arranged along the longitudinal direction and including a plurality of second lines capable of being used as electrodes; and an intermediate layer interposed between the first layer and the second layer to prevent the first wire and the second wire from being in direct contact.

The intermediate layer may include a conductive cloth whose resistance value changes due to a vertical direction pressure. Further, a portion where the first line and the second line intersect becomes a pressure measurement point.

In addition to the body pressure sensing sheet having the above-described structure, a fibrous body pressure sensing sensor of all forms capable of measuring the body pressure of the user can be used in the bed according to the embodiment of the present invention.

The reason for this is that the idea of the present invention is not in the fiber-type body pressure sensing sensor itself, but in a bed in which body pressure distribution is sensed by the fiber-type body pressure sensing sensor, and based on the result, the cushion strength of the strength adjustment module M1 located at a portion where body pressure is concentrated can be independently controlled.

The body pressure sensing sheet PA may be attached to the top surface of the top member 12, or alternatively, it may be buried inside the top member 12.

Further, a control box may be installed at one side of the shield frame 60, and a microcomputer defined as a control part may be provided inside the control box.

Further, the body pressure value measured by the body pressure sensing sheet PA (or body pressure sensing sensor) is transmitted to the control part, and the control part processes the collected body pressure data through a sampling and filtering process.

The control unit may be configured to output the body pressure distribution of the different regions of the body of the user as an image to the display unit based on the processed data.

As shown in fig. 57 and 58, the weight of the user can be concentrated on specific parts P1 to P5 of the body in accordance with the lying posture of the user. Further, the body pressure of the portion where the body weight concentrates will increase.

The control unit may operate the strength adjusting module supporting the body part whose body pressure is increased due to the concentration of the body weight, thereby increasing the pad strength.

The body pressure distribution images shown in fig. 57 and 58 may be displayed on a display unit of a controller connected to the control unit by wire or wirelessly.

A method for automatically or manually adjusting the pad strength of the strength adjusting module located at a portion where body weight is concentrated will be described in detail through a flowchart.

Fig. 59 is a flowchart illustrating a method for controlling a mattress strength of a bed according to a first embodiment of the present invention, and fig. 60 to 63 are display screens of a body pressure regulator shown in the course of executing the method for controlling a mattress strength of a bed according to the first embodiment of the present invention.

The method for controlling mattress strength of a bed according to the first embodiment of the present invention is characterized in that the control unit of the bed automatically adjusts the mattress strength of the bed to a uniform level based on the body pressure distribution data transmitted from the body pressure sensing sensors described above.

In other words, it is characterized in that the control part automatically controls the cushion strength of the strength adjusting module located at the area where the body pressure is concentrated in order to uniformly maintain the cushion strength at a level within a set range in the area pressed by the user.

Referring to fig. 59, first, the user turns on the power of the beds 10, 10a, 10b (S110). In this case, it is assumed that the user or another person other than the user is lying on the beds 10, 10a, and 10 b.

In detail, the power-on of the bed can be understood to include a case where the power of at least one of the motion control unit 30, 300, the body pressure sensing thin plate PA, a body pressure regulator 800 (to be described later), and a control box provided on the bed is turned on.

In this state, the user selects the automatic mode by operating the body pressure regulator 800 in the form of a remote controller connected to the control unit of the bed 10, 10a, 10b in a wireless communication manner (S120). It is obvious to those skilled in the art that a microcomputer is provided on the printed circuit board of the control box, and the microcomputer performs the function of the control section.

Referring to fig. 60, the body pressure regulator 800 may include: a body 8100; a power key 8200 disposed on a front surface of the body 8100; and a display 8300 disposed on a front surface of the body.

The body pressure regulator 800 may further include a plurality of mechanical input keys, and the plurality of input keys may be provided on the display 8300 in a touch key manner as in a mobile phone. The power key may be a mechanical key that a user needs to press with a predetermined amount of force.

For example, when the user presses the power key 8200, the display 8300 is activated, and the body pressure regulator 800 and the control unit are in a state in which communication is possible. Further, an input key image selectable by the user is displayed on the display 8300.

As an example, as shown in the drawing, as the display 8300 is activated, a touchable menu key 8310 capable of selecting an automatic mode and a manual mode may be displayed on one side of the screen.

In this state, the user may touch the auto mode menu key to start the auto mode, and the auto mode command is transmitted to the control part through the short range wireless communication modules respectively built in the body pressure regulator 800 and the control box. The near field wireless communication module may include Wi-Fi, Bluetooth, Zigbee (Zigbee), and the like. Hereinafter, a control unit provided in a control box of the bed is defined as a main control unit.

When the main control portion receives the automatic mode command, the control portion transmits a body pressure sensing command to the control portion of the body pressure sensing sheet PA. At this time, a body pressure scanning process of sensing the body pressure at a plurality of individual pressure sensing points formed on the body pressure sensing sheet PA is performed (S130). Here, the control portion of the body pressure sensing sheet PA is defined as a sub-control portion.

The body pressure scanning operation is repeatedly executed a set number of times within a set time, and a plurality of measurement data are extracted at the same position.

However, in order to determine that normal body pressure scanning is performed, the body pressure value sensed at the same position needs to be maintained within a set range.

For example, when a person lying on a bed turns over, the range of variation of the body pressure value sensed at the same body pressure sensing point becomes large, and in this state, an accurate body pressure value cannot be obtained at a corresponding position.

Therefore, the sub-control unit may perform a process of determining whether or not the fluctuation ranges of the plurality of body pressure values sensed at the same position at predetermined time intervals during the body pressure scanning process are out of a set range, that is, a process of determining whether or not the scanning is normally performed (S140).

The sub-control unit determines that the body pressure scanning process is normally performed when the body pressure is sensed a set number of times at set time intervals and the variation of the body pressure value sensed at the same position is within a set range. On the contrary, when the variation range of the body pressure value sensed at the same position is out of the set range, the sub-control unit determines that the body pressure scanning process is abnormally performed.

When it is determined that the body pressure scanning process has not been normally executed, the sub-control unit interrupts the body pressure sensing operation for a predetermined period of time and stands by (S141), and restarts the body pressure scanning process when the predetermined period of time has elapsed (S130).

When it is determined that the variation range of the body pressure values sensed at the same position is within the set range, the average value of the body pressure values sensed at the corresponding positions may be determined as the body pressure value at the corresponding position.

Referring to fig. 61, when the automatic mode is selected and body pressure scanning is started, information for prompting that a body pressure process is currently being performed is output on the display 8300 of the body pressure regulator 800.

The information can be one or the combination of characters, images and dynamic images.

When the body pressure scanning process and the predetermined time waiting process are executed at least once and it is determined that the body pressure scanning is normally performed, the sub-control unit transmits the body pressure value normally sensed to the main control unit (S150).

The main control unit processes and analyzes the body pressure values transmitted from the sub-control unit to extract body pressures in different regions of the body (S160).

Further, the main control unit generates a body pressure distribution image using the extracted body pressure values of the different regions of the body, and transmits the body pressure distribution image to the body pressure regulator 800. The transmitted body pressure distribution image may be output to the display 8300 of the body pressure regulator 800 (S170).

Referring to fig. 62, the body pressure distribution image sensed in the body pressure sensing sheet PA is displayed on the display 8300 of the body pressure regulator 800, and the body pressure distribution image may be represented as a color image.

For example, a part where body pressure is measured high due to concentration of body weight is displayed in a color close to red, and a part where body pressure is measured low is displayed in a color close to blue or green.

Referring to the dotted line portion of the body pressure distribution image shown in fig. 62, it can be confirmed that the body pressure is sensed high at the positions where the head, shoulders, and hips of the user lie in the state where the user lies down.

The main control unit determines whether or not there is an area in which body pressure is concentrated compared with other areas, based on the extracted body pressure data of the different areas of the body (S180).

When it is determined that there is an area in which body pressure values exceeding the set range level are sensed, i.e., a body pressure concentration area, the main control part increases the pad strength of the corresponding portion by operating the strength control unit 20 (S181).

Specifically, referring to fig. 21 and 27, the main control unit transmits a control signal to the driving motor 24 of the intensity control unit 20 to rotate the driving motor 24 in one direction. The rotational force of the driving motor 24 is transmitted to the driving gear 251 and the transmission gear 990, thereby lifting the inner case 92 of the pad member 90.

As the inner shell 92 rises, the inner spring 94 will also rise, thereby increasing the cushion strength of the cushion member 90. In a state where the user lies, as the pad strength of the pad member 90 increases, the body pressure value sensed in the body pressure concentration region decreases.

When the body pressure value newly sensed in the body pressure concentration region falls within the set range by the operation of the strength control unit 20, the main control unit may determine that the body pressure is uniformly distributed.

When the body pressure adjustment in the body pressure concentration region is completed by such a method, the currently set cushion strength is stored and maintained (S190).

Referring to fig. 63, when the body pressure adjustment is completed, a message for prompting completion of the body pressure adjustment may be displayed on the display 8300 of the body pressure regulator 800. On this basis, a message indicating that the manual mode key is touched if manual readjustment of body pressure adjustment is required may also be displayed.

Fig. 64 is a flowchart showing a method for controlling the mattress strength of a bed according to the second embodiment of the present invention, and fig. 65 and 66 are display screens of a body pressure regulator shown in the process of executing the method for controlling the mattress strength of a bed according to the second embodiment of the present invention.

The mattress intensity control method of a bed according to the second embodiment of the present invention is characterized in that the manual mode is selected after the automatic mode mattress intensity adjustment described above, or the user selection of the manual mode is initially started, and the user personally selects and determines the mattress intensity of the bed.

Referring to fig. 64, first, the user turns on the power of the beds 10, 10a, 10b (S210). In case the user selects the manual mode again after the automatic mode is finished, the process of turning on the power of the bed will be omitted.

Specifically, when the user selects the manual mode in the state where the bed is powered on (S220), the body pressure sensing command is transmitted from the main control unit to the body pressure sensing sheet PA, as in the previous embodiment.

The process of scanning the body pressure by the body pressure sensing sheet PA (S230), the process of determining whether the scanning is normally performed (S240, S241), the process of transmitting the body pressure sensing data to the main control unit (S250), the process of extracting the body pressure of different regions of the body by data processing (S260), and the process of forming the body pressure distribution image are performed in the same manner as the control method of the first embodiment, and therefore, the repeated explanation thereof is omitted.

In the present embodiment, the body pressure distribution image is output to the display 830 of the body pressure regulator 800 in the same manner as the control method of the first embodiment. Only in the difference, in the manual mode, the body pressure distribution image is output to a part of the body pressure adjustment screen of the display 8300.

When the body pressure adjustment screen is output to the display 8300 (S270), a step of selecting a body pressure adjustment position for body pressure change (S280) and a step of selecting a pad strength at the selected position (S290) are sequentially executed.

When the body pressure adjustment completion command is input (S300), the manual adjustment mode is terminated. The body pressure adjustment instruction may be used in the same manner as the pad strength adjustment instruction.

Referring to fig. 65, a display 8300 of the body pressure regulator 800 can output a regulation part observation screen 8400 and a regulation part menu screen 8500 together.

An adjustment location changing key 8510 used by the user to select a pad intensity adjustment location, a pad intensity changing key 8520 for resetting the pad intensity of the pad intensity adjustment location, and an end key 8530 for inputting a finish command for the pad intensity changing process may be displayed on the adjustment location menu screen 8500.

The adjustment location changing keys 8510 may include an upper moving key 8510a and a lower moving key 8510b, and the pad strength changing keys 8520 may include a pad strength increasing key 8520a and a pad strength decreasing key 8520 b.

Further, a body pressure distribution image 8410 divided into a plurality of regions from head to foot is output on the adjustment region observation screen 8400, and a cursor 8420 may be arranged on one side edge of the adjustment region observation screen 8400.

When the user touches the adjustment location changing key 8510 in order to select a position at which the pad intensity of the intensity adjusting module M1 constituting the intensity control unit 20 is to be changed, the cursor 8420 moves upward or downward on the screen.

For example, when the user touches the upper move key 8510a short number of times or presses for a long time, the cursor 8420 moves upward stepwise or more quickly. By such an operation, the cursor 8420 can be positioned at a position where body pressure is concentrated.

When the cursor 8420 is located at a position where the body pressure is concentrated, the user can increase the pad strength at the corresponding position by operating the pad strength changing key 8520. For example, when the pad strength increasing key 8520a is pressed a plurality of times in a short time or pressed for a long time, the pad strength displayed in the region where the cursor 8420 is located is changed. As shown, the pad strength at the position where the cursor 8420 is located is changed to "strong", while the pad strength of other areas is maintained to "weak".

When the pad strength change key is pressed during a set time after the pad strength is changed, the changed pad strength may be determined as a corresponding change value.

As described above, when the pad strength in the body pressure concentration region is changed by moving the pad strength adjustment portion, the process returns to step S230 in fig. 64 and the step of sensing the body pressure may be repeatedly executed.

Further, the body pressure distribution image modified by the repeated execution is displayed again on the adjustment site observation screen 8400, so that the user can adjust again the pad strength of the strength adjustment module determined as the position of the body pressure concentration region.

Such a process is repeatedly executed a plurality of times, and when the body pressure concentration area is removed and a body pressure distribution image in which the body pressure is uniformly distributed is displayed on the adjustment region observation screen 8400, the user touches the end key 8530 to end the body pressure adjustment process. Further, the body pressure adjustment completion command may be transmitted to the main control unit.

When the pad intensity adjustment process is completely completed, as shown in fig. 66, a message for prompting completion of the pad intensity change process may be output on the display 8300 of the body pressure regulator 800. Further, a message indicating that a key touching a desired pattern is selected if the pad intensity needs to be changed again automatically or manually may be displayed together.

The invention has the advantages that: by the method as described above, not only the optimal sleep condition but also the optimal sleep posture can be provided to the user.

Claims (10)

1. A method of controlling a bed, the bed comprising:

a top piece to which a body of a user contacts; a plurality of strength adjusting modules including a plurality of pad members provided at a lower side of the top part, a driving motor generating a driving force for adjusting pad strengths of the plurality of pad members, and a gear assembly transmitting the rotating force generated by the driving motor to the pad members; a fiber-type body pressure-sensing sheet provided on the top surface of the top member, for sensing the body pressure of a lying user; and a control box provided with a main control part for controlling the operation of the body pressure sensing thin plate and the strength adjusting module;

wherein the control method of the bed comprises the following steps:

supplying power to the bed to open the strength adjustment module, the body pressure sensing thin plate, and the main control unit;

a step of selecting an operation mode for pad strength adjustment;

transmitting a body pressure sensing command from the main control unit to the body pressure sensing sheet, and scanning the body pressure of the user lying on the body pressure sensing sheet;

transmitting the scanned body pressure data to the main control unit to confirm a body pressure concentration area;

selecting one or more intensity adjusting modules located in the body pressure concentration area;

transmitting a pad intensity adjustment command from the main control part to the selected one or more intensity adjustment modules; and

and a step of operating the selected driving motor of the strength adjusting module according to the transmitted pad strength adjusting command to adjust the strength of the pad member.

2. The method of controlling a bed according to claim 1,

and a body pressure scanning step of judging whether body pressure scanning is normally executed or not to judge whether the variation ranges of a plurality of body pressure values sensed at the same part at preset time intervals deviate from a set range or not.

3. The method of controlling a bed according to claim 2,

the sub-control unit provided on the body pressure sensing sheet interrupts the body pressure scanning step for a predetermined time when it is determined that the variation ranges of the plurality of body pressure values sensed at the same site are out of the set range.

4. The method of controlling a bed according to claim 3,

the sub-control unit determines an average value of the body pressure values sensed at the corresponding portions as the body pressure value at the corresponding portion when it is determined that the variation ranges of the plurality of body pressure values sensed at the same portion are within the set range.

5. The method of controlling a bed according to claim 4,

the main control unit extracts body pressure values of different regions of the body based on the body pressure values transmitted from the sub-control unit, and generates a body pressure distribution image using the extracted body pressure values.

6. The method of controlling a bed according to claim 5,

further comprising:

transmitting the body pressure distribution image from the main control unit to a display of a body pressure regulator communicably connected to the main control unit; and

and outputting the body pressure distribution image on a display of the body pressure regulator.

7. The method of controlling a bed according to claim 6,

according to the cushion strength adjusting instruction, the cushion strength of the strength adjusting module located in the body pressure concentration area is increased compared with the cushion strength of the strength adjusting module located in the other area except the body pressure concentration area.

8. The method of controlling a bed according to claim 7,

when the pad strength adjusting process is completed, the process from scanning the body pressure to the pad strength adjusting process for judging whether the body pressure concentration area exists is repeatedly executed.

9. The method of controlling a bed according to claim 8,

through the pad strength adjusting process more than once, if the difference between the body pressure of the body pressure concentration area and the body pressure of the other areas except the body pressure concentration area falls within the set range, the finally set pad strength is maintained and stored.

10. The method of controlling a bed according to claim 9,

when the operation mode is an automatic mode, the pad strength adjustment of the strength adjustment module located in the body pressure concentration area is automatically performed by the main control portion.

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