CN113491402A

CN113491402A - Bed

Info

Publication number: CN113491402A
Application number: CN202011101543.4A
Authority: CN
Inventors: 金大雄; 吴旼奎; 李得远; 金容南; 安城右; 皇甫縢; 卢良焕
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2020-04-07
Filing date: 2020-10-15
Publication date: 2021-10-12
Also published as: KR20210124671A; EP3892160A1; EP3892160B1

Abstract

The invention provides a bed. A bed of an embodiment of the invention may include: a mattress set including a mattress unit on which a user's body is placed on a top surface thereof and a cover covering the mattress unit; and a drying module which is placed on the setting surface, supports the mattress set, and supplies dry air to the inside of the mattress set.

Description

Bed

Technical Field

The present invention relates to beds.

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 case 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 an unpleasant feeling 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.

In order to improve such a problem, patent document 3 discloses a blower device that supplies 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 present invention has been made to improve upon the problems occurring in the prior art beds as described above.

In order to achieve the above object, a bed of an embodiment of the present invention may include: a mattress set including a mattress unit on which a user's body is placed on a top surface thereof and a cover covering the mattress unit; and a drying module which is placed on the setting surface, supports the mattress set, and supplies dry air to the inside of the mattress set.

Further, the drying module may include: the mattress set comprises a set bracket, a mattress support and a mattress support, wherein the set bracket comprises a top surface part for placing the mattress set and a side surface part which extends downwards along the edge of the top surface part and is contacted with the setting surface; and the air supply device is arranged on the bottom surface of the group bracket.

Further, the air blowing device may include: an air supply fan; a suction duct connected to a suction port of the blower fan, and sucking indoor air through suction ports formed at both ends of the suction duct; and a plurality of supply ducts connected to the outlet of the blower fan to supply the mattress set with the sucked indoor air.

The bed according to the embodiment of the present 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, an area with excessive humidity in the entire area of the mantle or the top member is sensed using a humidity sensor provided at the humidity sensing sheet, and hot wind can be intensively supplied from the drying module to the excessive humidity area. As a result, the bedding, the cover, or the top piece is always kept in a dry state at a comfortable level, and thus the user can feel comfortable and be helped to go to deep sleep.

Drawings

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

Fig. 2 is a bottom perspective view of the bed of the first embodiment of the present invention.

Fig. 3 is a bottom perspective view of a mattress set constituting a bed according to a first embodiment of the invention.

Fig. 4 is an exploded perspective view of the mattress set.

Fig. 5 is a longitudinal cross-sectional view of the mattress set taken along section 5-5 of fig. 3.

Fig. 6 is a perspective view of the motion control unit constituting the mattress set according to the first embodiment of the present invention as viewed from above.

Fig. 7 is a perspective view of the motion control unit as viewed from below.

Fig. 8 is a side view of the motion control unit in a horizontal state.

Fig. 9 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. 10 is a side sectional view of the motion control unit taken along 10-10 of fig. 6 in the state of fig. 9.

Fig. 11 is a view showing a coupling relationship of the strength adjusting module and the motion control unit constituting the mattress set according to the first embodiment of the present invention.

Fig. 12 is a perspective view of a partition constituting a mattress set according to a first embodiment of the present invention.

FIG. 13 is a front perspective view of a pad member according to one embodiment of the present invention.

Fig. 14 is a bottom perspective view of the pad member.

Fig. 15 is an exploded perspective view of the cushion member.

Fig. 16 is a bottom perspective view of an upper cover constituting a cushion member of the embodiment of the present invention.

Fig. 17 is a perspective view of an inner case constituting a cushion member of the embodiment of the present invention.

Fig. 18 is a perspective view of a housing constituting a cushion member of the embodiment of the present invention.

Fig. 19 is a plan view showing a coupled state of an outer shell, an inner shell, and a lead screw constituting a pad member of an embodiment of the present invention.

Fig. 20 is a longitudinal sectional view of the cushion member of the embodiment of the present invention taken along 20-20 of fig. 13 in a state where no external force is applied.

Fig. 21 is a longitudinal sectional view of the cushion member of the embodiment of the present invention, taken along 20-20 of fig. 13 in a state where an external force is applied.

Fig. 22 is a side perspective view of an intensity adjustment module of an embodiment of the present invention.

Fig. 23 is a bottom perspective view of the intensity adjustment module.

Fig. 24 is an exploded perspective view of an intensity adjustment module of an embodiment of the present invention.

Fig. 25 is an exploded perspective view showing a bottom surface portion structure of a module case constituting the strength adjusting module.

Fig. 26 is a cut-away view of the strength adjustment module of the embodiment of the invention taken along 26-26 of fig. 22.

Fig. 27 is a bottom view of the strength adjustment module of the embodiment of the present invention with the bottom case removed.

Fig. 28 is a perspective view of a drying module constituting a bed of the first embodiment of the present invention.

Fig. 29 is an exploded perspective view of the drying module.

Fig. 30 is a longitudinal sectional view of the drying module taken along 30-30 of fig. 28.

Fig. 31 is a bottom view of the drying module showing the flow of air.

Fig. 32 is a perspective view of a drying module according to another embodiment of the present invention.

Fig. 33 is a perspective view of a bed according to a second embodiment of the present invention.

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

Fig. 35 is an exploded perspective view of a drying module of a bed of a second embodiment of the invention.

Fig. 36 is a longitudinal sectional view of a drying module constituting a bed of the second embodiment taken along 36-36 of fig. 33.

Fig. 37 is a longitudinal sectional view of a drying module constituting a bed of the second embodiment taken along 37-37 of fig. 33.

Fig. 38 is an exploded perspective view of an air distributor of a drying module constituting a bed of a second embodiment of the present invention.

Fig. 39 is a cut-away view of the dispenser housing taken along line 39-39 of fig. 38.

Fig. 40 is a cut-away view of the dispenser housing taken along line 40-40 of fig. 38.

Fig. 41 is a front perspective view of a moving duct constituting an air distributor of an embodiment of the present invention.

Fig. 42 is a rear perspective view of the moving duct.

FIG. 43 is a side cross-sectional view of an air distributor with a drying module of an embodiment of the present invention in an inoperative state.

Fig. 44 is a side sectional view of the air distributor with the moving duct in an elevated state due to the operation of the drying module.

Fig. 45 is a side sectional view of the air distributor with the moving duct in a lowered state due to an external force applied to the moving duct.

Fig. 46 is a perspective view of a bed according to a third embodiment of the present invention.

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

Fig. 48 is an exploded perspective view of a bed according to a third embodiment of the invention.

Fig. 49 is a longitudinal section view of the third embodiment bed taken along 49-49 of fig. 46.

Fig. 50 is a longitudinal section view of a mattress set constituting a bed according to a third embodiment of the invention, taken along section 50-50 of fig. 49.

Fig. 51 is a perspective view of a combination of a motion control unit and a guard frame constituting a drying module of a bed according to a third embodiment of the present invention, as viewed from above.

Fig. 52 is a perspective view of the combination of the motion control unit and the shield frame as viewed from below.

Fig. 53 is a cross-sectional view of the motion generator taken along section 53-53 of fig. 52.

Figure 54 is a longitudinal cross-sectional view of the motion generator taken along section 54-54 of figure 53.

Fig. 55 is a perspective view showing an operation of a motion control unit of a drying module constituting a bed of the third embodiment of the present invention.

Fig. 56 is a longitudinal cross-sectional view of the motion control unit taken along line 56-56 of fig. 55.

Fig. 57 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. 58 is a partial longitudinal cross-sectional view of the module setter plate taken along 58-58 of fig. 57.

Fig. 59 is a partial longitudinal sectional view of the module settling plate taken along 58-58 of fig. 57 in a state of being inclined by the motion control unit.

Fig. 60 is an exploded perspective view of an air blowing unit constituting a drying module of a bed according to a third embodiment of the present invention.

Fig. 61 is a perspective view of a bed according to a fourth embodiment of the present invention.

Fig. 62 is a bottom perspective view of the bed of the fourth embodiment.

Fig. 63 is a perspective view of a drying module constituting a bed of a fourth embodiment of the invention.

Fig. 64 is a perspective view showing the inside of the drying module.

Fig. 65 is an exploded perspective view of the drying module.

Fig. 66 is a perspective view of a discharge grill constituting the drying module according to the embodiment of the present invention.

Fig. 67 is a perspective view of a filter constituting a drying module according to an embodiment of the present invention.

Fig. 68 is a perspective view of an edge frame constituting a drying module of an embodiment of the present invention.

FIG. 69 is a cut-away view of the edge frame taken along line 69-69 of FIG. 68.

Fig. 70 is an enlarged sectional view of a portion a of fig. 69.

Fig. 71 is a perspective view of an air distributor constituting a drying module according to an embodiment of the present invention.

FIG. 72 is a cut-away view of the air distributor taken along line 72-72 of FIG. 71.

Fig. 73 is a partial cut-away view of the drying module taken along 73-73 of fig. 64.

Fig. 74 is a perspective view of a base cover constituting a drying module of an embodiment of the present invention.

Fig. 75 is a partial longitudinal cross-sectional view of the base cap taken along section 75-75 of fig. 74.

Fig. 76 is a partial longitudinal cross-sectional view of the third embodiment of the bed of the present invention taken along section line 76-76 of fig. 61.

Fig. 77 is a partial longitudinal cross-sectional view of the third embodiment bed of the present invention taken along section 77-77 of fig. 61.

Fig. 78 is a top view of a moisture sensing sheet positioned in a mattress set of a bed according to an embodiment of the invention.

Fig. 79 is a flowchart illustrating a humidity control method of a bed according to an embodiment of the present invention.

Fig. 80 to 84 are display screens of the humidifier shown in the course of performing the humidity control method of the bed according to the 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, and fig. 2 is a bottom perspective view of the bed according to the first embodiment of the present invention.

Referring to fig. 1 and 2, a bed 10 according to a first embodiment of the present invention may include: a mattress set MS; and a drying module 50 on which the mattress set MS is placed.

The mattress set MS is detachable and replaceable from the drying module 50, and at least a portion of the mattress set MS can be tilted.

Hereinafter, the structures of the mattress set MS and the drying module 50 and the functions of the respective structural elements will be described in detail with reference to the accompanying drawings.

Fig. 3 is a bottom perspective view of a mattress set constituting a bed according to a first embodiment of the present invention, fig. 4 is an exploded perspective view of the mattress set, and fig. 5 is a longitudinal sectional view of the mattress set taken along 5-5 of fig. 3.

Referring to fig. 3 to 5, the mattress set MS constituting the bed of the first embodiment of the present invention may include at least a top part (topper)12 for the user's body to be placed on. The top piece 12 has a greater length than width.

In detail, the mattress set MS may further include a plurality of strength control modules placed on the underside of the top piece 12.

The mattress set MS may further include a spacer (inter) 40 interposed between the plurality of intensity control modules.

The combination of the intensity control module and the spacer 40 may be defined as an intensity control unit 20.

The mattress set MS may further include a motion control unit 30 placed on the lower side of the intensity control unit 20.

Also, the mattress set MS may further include a guard plate 13 enclosed along edges of the intensity control unit 20 and the motion control unit 30.

The mattress set MS may further comprise a bed cover (or mantle) 11 covering the apron 13 from above the top part 12.

The bed cover 11 completely covers the bottom surface of the motion control unit 30, and a plurality of communication holes 111 may be formed in the bottom surface of the bed cover 11.

Wherein one or more structural elements constituting the mattress set other than the cover 11 may be defined as a mattress unit (mattress unit), and the mattress set MS may also be defined as a cover 11 including the mattress unit and covering the mattress unit. Such a definition applies equally to the mattress set constituting the bed of the other embodiments to be described later.

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

Referring to fig. 6 and 7, the motion control unit 30 constituting the mattress set MS according to 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.

And, the frames constituting the mounting frames may each be defined to include at least an outline frame, a plurality of cushion member mounting plates coupled to the outline frame, and a plurality of connection rods.

For example, the upper body frame 31 may include a profile frame 311, a plurality of pad member seating plates 312, and a plurality of coupling 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 a bottom surface of a 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. 8 is a side view of the motion control unit in a horizontal state, fig. 9 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. 10 is a side sectional view of the motion control unit taken along 10-10 of fig. 6 in the state of fig. 9.

Referring to fig. 8, 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. 9, 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. 9 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. 10 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.

Referring to fig. 11, 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.

Referring to fig. 12, 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 shape of the second partition is compressed and 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 fins (fin)43 extending from an upper end of the body 41, and a plurality of slits 42 defined between the plurality of fins 43.

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).

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 below with reference to the accompanying 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. 13 is a front perspective view of a cushion member according to an embodiment of the present invention, fig. 14 is a bottom perspective view of the cushion member, and fig. 15 is an exploded perspective view of the cushion member.

Referring to fig. 13 to 15, 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.

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

Referring to fig. 16, 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.

Referring to fig. 17, 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.

Referring to fig. 18, 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.

Referring to fig. 19, 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. 20 is a longitudinal sectional view of the cushion member of the embodiment of the present invention, taken along 20-20 of fig. 13 in a state where no external force is applied, and fig. 21 is a longitudinal sectional view of the cushion member of the embodiment of the present invention, taken along 20-20 of fig. 13 in a state where an external force is applied.

Referring to fig. 20 and 21, 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. 22 is a side perspective view of an intensity adjustment module according to an embodiment of the present invention, and fig. 23 is a bottom perspective view of the intensity adjustment module.

Referring to fig. 22 and 23, 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. 24 is an exploded perspective view of a strength adjustment module according to an embodiment of the present invention, and fig. 25 is an exploded perspective view showing a bottom surface portion structure of a module case constituting the strength adjustment module.

Referring to fig. 24 and 25, the strength adjustment module M1 according to the 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. 26 is a cut-away perspective view of the strength adjustment module of the embodiment of the present invention taken along 26-26 of fig. 22, and fig. 27 is a bottom view of the strength adjustment module of the embodiment of the present invention with a bottom case removed.

Referring to fig. 26 and 27, 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. 28 is a perspective view of a drying module constituting a bed according to a first embodiment of the present invention, fig. 29 is an exploded perspective view of the drying module, fig. 30 is a longitudinal sectional view of the drying module taken along 30-30 of fig. 28, and fig. 31 is a bottom view of the drying module showing air flow.

Referring to fig. 28 to 31, the drying module 50 constituting the bed of the first embodiment of the present invention may include: a group support 51 supporting the mattress group MS; and a blower 52 mounted on the bottom surface of the group holder 51.

In detail, the air blowing device 52 may include: a suction duct 53; a filter (or filter unit) 54 attached to a suction port 531 of the suction duct 53; a blower fan 55 mounted in a fan mounting hole 532 formed in the top surface of the suction duct 53; one or more supply ducts 56 installed at the discharge port of the blower fan 55; and one or a plurality of discharge pipes 57 provided at the one or a plurality of supply pipes 56, respectively.

In more detail, the set of brackets 51 may include: a top surface portion 511, the mattress set MS being placed on a top surface of the top surface portion 511; and a side surface portion extending downward along an edge of the top surface portion 511.

The side surface part may include: a pair of short side surface parts 512 facing each other; and a pair of long-side surface parts 513 connecting edges of the pair of short-side surface parts 512.

When the group holder 51 is placed on the installation surface, the lower ends of the short side surface portions 512 and the long side surface portions 513 are completely brought into close contact with the installation surface, and thus, the remaining air other than the indoor air passing through the filter 54 hardly flows into the group holder 51, and the amount of the unfiltered indoor air flowing into the blowing fan 55 can be minimized.

The lengths of the short and long sides of the top surface part may be designed to be greater than those of the mattress set MS.

The top surface 511 may be formed with a plurality of mounting holes 511a for mounting the plurality of discharge pipes 57. The plurality of mounting holes 511a are formed at positions corresponding to the positions of the plurality of discharge pipes 57, and the mounting holes 511a may be designed to have a size corresponding to the size of the discharge pipes 57.

A filter mounting groove 513a is formed in the long side surface part 513. In detail, the filter 54 may be inserted into the filter mounting groove 513a in a state of being mounted to the suction port 531 of the suction duct 53.

Alternatively, the filter 54 may be detachably mounted in the filter mounting groove 513a, and the suction port 531 of the suction duct 53 may be closely attached to the filter 54 when the suction duct 53 is mounted on the bottom surface of the pack bracket 51.

The suction duct 53 and the supply duct 56 may be fixed to the group holder 51 in directions crossing each other. For example, the suction duct 53 may extend in a short side direction (width direction) of the group holder 51, and the supply duct 56 may extend in a long side direction (length direction) of the group holder 51.

A fan mounting hole 532 is formed at the center of the top surface of the suction duct 53 such that the indoor air passing through the filter 54 and the suction port 531 flows into the blowing fan 55 through the fan mounting hole 532.

By installing the filter 54 at the suction port 531 of the suction duct 53, dust or other foreign substances falling from the installation surface can be effectively filtered when the indoor air is sucked into the suction duct 53.

The blower fan 55 may include a centrifugal fan that sucks air in the axial direction and discharges air in the radial direction, but other types of blower fans may be applied.

The blower fan 55 may have a suction port formed on a bottom surface thereof and a plurality of discharge ports formed on a side surface thereof. For example, in the present embodiment, four discharge ports are formed in a side surface of the blower fan 55, and four supply ducts 56 are connected to the four discharge ports.

The four supply ducts 56 may be configured to extend in a direction crossing in an X-shape around the blower fan 55 and then extend in parallel with each other from a certain position to an end.

More specifically, the four supply conduits 56 may include: first and second supply ducts extending to one of the two short-side surface portions 512; and third and fourth supply ducts extending to the other short-side surface portion of the two short-side surface portions 512.

The first to fourth supply ducts may be sequentially arranged in a clockwise direction along the circumferential surface of the blower fan, so that the first and second supply ducts and the third and fourth supply ducts may be symmetrically formed about a first vertical surface bisecting the blower fan.

The first and fourth supply ducts and the second and third supply ducts may be formed symmetrically about a second vertical plane bisecting the blower fan.

The first vertical surface is a vertical surface that bisects the long-side surface 513 of the group holder 51, and the second vertical surface is a vertical surface that bisects the short-side surface 512 of the group holder.

Also, a throttle valve 561 is installed inside each of the plurality of supply ducts 56 to be able to adjust the amount of air supplied to the four supply ducts 56 to be different from each other. The main control part (not shown) of the bed can intensively supply indoor air to a specific region of the top member 12 by adjusting the opening degree of the throttle valve 561. For example, in the case where a certain position has higher humidity than other positions due to infiltration of scattered water or sweat, the opening degree of the throttle valve 561 may be adjusted to intensively supply indoor air to a position having high humidity

A plurality of discharge ports are formed in the top surface of the supply duct 56, and the discharge duct 57 is connected to the positions where the discharge ports are formed.

The plurality of discharge pipes 57 may be disposed at predetermined intervals in the longitudinal direction of the group holder 51. A discharge port 571 communicating with the discharge port of the supply line 56 is formed in the bottom of the discharge line 57, and the top surface of the discharge line 57 is opened and coupled to the mounting hole 511a of the group holder 51.

When the mattress set MS is placed on the set bracket 51, the mounting hole 511a is aligned with the communication hole 111 formed in the bottom surface of the bed cover 11. Accordingly, the air discharged from the discharge duct 57 can be supplied to the inside of the mattress set MS through the communication hole 111.

Referring to fig. 32, a drying module 50a according to another embodiment of the present invention is constructed in the same structure as the drying module 50 of the previous embodiment, and is characterized in that legs 58 extend from four corners of a group bracket 51, and a suction duct 53 constituting an air blowing means 52 is omitted.

By extending the four legs 58 from the corners of the set of brackets 51, the bottom surface of the set of brackets 51 is spaced from the setting surface. As a result, the indoor air positioned below the group holder 51 can be easily flowed into the blower fan 55. Thus, the suction duct 53 described in the previous embodiment is not required.

Further, the filter 54a is attached to the suction port of the blower fan 55, so that impurities contained in the indoor air can be filtered.

Fig. 33 is a perspective view of a bed according to a second embodiment of the present invention, fig. 34 is a bottom perspective view of the bed according to the second embodiment of the present invention, fig. 35 is an exploded perspective view of the bed according to the second embodiment of the present invention, fig. 36 is a longitudinal sectional view of a drying module constituting the bed according to the second embodiment taken along 36-36 of fig. 33, and fig. 37 is a longitudinal sectional view of the drying module constituting the bed according to the second embodiment taken along 37-37 of fig. 33.

Referring to fig. 33 and 34, a bed 10a according to a second embodiment of the present invention may include: a mattress set MS; and a drying module 50b, the mattress set MS being detachably placed on a top surface of the drying module 50 b.

Unlike the first embodiment, the present embodiment is characterized in that the indoor air supplied from the drying module 50b is supplied to the outer upper side of the mattress set MS to dry the mattress set MS.

In the case where a quilt is placed on the mattress set MS, the air spouted from the drying module 50b may flow to a space between the quilt and the mattress set MS.

The mattress set MS has the same structure as the mattress set MS of the first embodiment except that communication holes are not formed in the bedspread 11 forming the bottom surface of the mattress set MS, and thus, a repetitive description thereof will be omitted.

Referring to fig. 35, a drying module 50b of an embodiment of the present invention may include: a group support 51b on the top surface of which the mattress group MS is placed; and a blower 52a mounted on the group holder 51 b.

The air blowing device 52a may include: an air blowing unit AS installed at a bottom surface of the group bracket 51 b; and an air distributor 59 installed at an edge of the top surface of the group supporter 51 b.

The air distributor 59 may include a primary air distributor 59a and a pair of secondary air distributors 59 b.

The primary air distributor 59a may be installed on the short-side top surface of the group frame 51b where the user's feet are located, and the secondary air distributors 59b may be installed on the long-side top surfaces, i.e., the left and right top surfaces, of the group frame 51b, respectively.

The blowing unit AS may include a suction duct 53, a filter 54 installed at a suction port 531 of the suction duct 53, a blowing fan 55, a supply duct 56, and a heater H.

The blowing fan 55 may include a main fan 55a and a sub-fan 55b, which include centrifugal fans.

The supply conduits 56 may include a primary supply conduit 56a and a secondary supply conduit 56 b. The main supply duct 56a is connected to the discharge port of the main fan 55a, and the sub supply duct 56b is connected to the discharge port of the sub fan 55 b.

A pair of fan mounting holes 532 communicating with the suction port of the main fan 55a and the suction port of the sub-fan 55b, respectively, may be formed on the top surface of the suction duct 53. Further, filters 54 may be attached to both end portions of the suction duct 53, as in the first embodiment.

The sub-supply duct 56b branches into left and right sides at a position extending from the discharge port of the sub-fan 55b by a predetermined length, and extends to the left and right edges of the group holder 51b, respectively. That is, the secondary supply conduit 56b may be understood to include a left secondary supply conduit and a right secondary supply conduit.

Heaters H may be installed inside the end position of the main supply duct 56a and a position just before the sub supply duct 56b is branched into two ducts, respectively. Therefore, hot air can be supplied to a position where the humidity of the jacket 11 or the top 12 is high, and the jacket 11 or the top 12 can be dried.

In addition, the group holder 51b includes a top surface portion 511 and side surface portions extending downward from an edge of the top surface portion 511, and the side surface portions may include two long side surface portions 513 facing each other and two short side surface portions 512 facing each other.

The suction duct 53 extends along the width direction of the top surface portion 511, i.e., along the long-side surface portion direction. In addition, a filter mounting groove 513a is formed in the long side surface part 513, and the filter 54 is positioned in the filter mounting groove 513 a.

A main mounting hole 511b is formed in the edge of the top surface portion 511 on the short side, and a sub-mounting hole 511c is formed in the edge of the top surface portion on the long side. The main air distributor 59a is coupled to the main mounting hole 511b, and the sub air distributor 59b is coupled to the sub mounting hole 511 c.

According to such a configuration, when the blower fan 55 is operated, indoor air flows into the blower fan 55 through the filters 54 attached to both ends of the suction duct 53. As in the first embodiment, even if one side surface portion of the long side surface portions 513 of the group holder 51b is closely attached to the wall, the indoor air can be sucked through the filter 54 exposed at the other side.

The indoor air sucked into the main fan 55a flows along the main supply duct 56a and is discharged to the upper side of the mattress set MS through the main air distributor 59 a.

The air flowing along the main supply duct 56a absorbs heat from the heater H when the heater H is turned on, and is discharged toward the upper end of the main air distributor 59a in a state where the temperature is increased.

The indoor air sucked into the sub-fan 55b flows along the sub-supply duct 56b, is branched into right and left air, and is discharged to the upper side of the mattress set MS through the sub-air distributor 59 b.

The air flowing along the sub-supply duct 56b is also discharged to the upper end of the sub-air distributor 59b in a state where the temperature is increased when the heater H is turned on.

Hereinafter, the structure and operation of the air distributor 59 constituting the air blowing device 52a will be described in detail with reference to the drawings. The primary air distributor 59a and the secondary air distributor 59b are different only in size, and the rest of the structure and operation are the same.

Referring to fig. 38, the air distributor 59 of the drying module 50b constituting the bed 10a of the second embodiment of the present invention may include: a dispenser housing 591; a moving duct 592 which is elevated in an up-and-down direction inside the dispenser housing 591; a discharge grill 593 attached to a grill attachment hole (5921: see fig. 41) formed at an upper end of a front surface of the moving duct 592; an elevating means ES for generating a driving force for moving the moving duct 592 in the up-down direction; and a buffer spring 597 for elastically supporting the lifting means ES.

The lifting means ES may include: a lift motor 594 for generating a rotational force; a lifting gear 595 connected to a rotating shaft of the lifting motor 594; and a motor housing 596 for housing the lift motor 594.

The buffer spring 597 may be provided with one or more, and the motor housing 596 is placed at the upper end of the buffer spring 597 to be movable in the up and down direction.

Fig. 39 is a cut-away view of the dispenser housing taken along line 39-39 of fig. 38, and fig. 40 is a cut-away view of the dispenser housing taken along line 40-40 of fig. 38.

Referring to fig. 39 and 40, a dispenser case 591 constituting an air dispenser 59 according to an embodiment of the present invention may include: a hexahedron-shaped case main body 5910; a partition wall 5911 dividing the interior of the case body 5910 into two.

The case body 5910 may be formed in a hexahedral shape having a prescribed width, height, and thickness, and an inner space of the case body 5910 is divided into the moving pipe receiving part 5913 and the motor receiving part 5914 by the partition wall 5911. The movement pipe receiving portion 5913 is adjacent to the side surface portion of the mattress group MS, and the motor receiving portion 5914 is defined at the rear side of the movement pipe receiving portion 5913, i.e., the side surface remote from the side surface of the mattress group MS.

In the center of the partition wall 5911, a guide slit 5912 may be vertically formed with a prescribed width and length. The width of the guide slot 5912 may be formed in a size corresponding to the outer diameter of the rotation shaft of the elevation motor 594. In addition, the lifting means ES may be moved in a vertical direction in a state where the rotation shaft of the lifting motor 594 penetrates the guide slit 5912.

The buffer spring 597 is accommodated in the motor accommodating portion 5914. The buffer spring 597 includes a pair of coil springs, which may be vertically erected and arranged side by side.

The motor housing 597 is coupled to an upper end of the buffer spring 597 such that the motor housing 597 also moves in an up-and-down direction along with the expansion and contraction of the buffer spring 597.

In addition, the bottom surface of the moving pipe receiving portion 5913 is opened to communicate with the mounting

holes

511b and 511c formed at the edge of the top surface portion 511 of the group holder 51 b. In addition, the top surface of the moving duct receiving portion 5913 is also opened so that the moving duct 592 can slidably move in the vertical direction while being received in the moving duct receiving portion 5913.

Fig. 41 is a front perspective view of a moving duct constituting an air distributor according to an embodiment of the present invention, and fig. 42 is a rear perspective view of the moving duct.

Referring to fig. 41 and 42, the moving duct 592 constituting the air distributor 59 according to the embodiment of the present invention may include: a hexahedron-shaped conduit body 5920; a grill mounting hole 5921 formed at an upper end of a front surface of the duct main body 5920; a gear receiving groove 5922 extending in a vertical direction at a rear surface of the duct main body 5920; and a gear 5923 formed at one side surface of the gear receiving groove 5922.

Specifically, the elevating gear 595 connected to the rotation shaft of the elevating motor 594 is exposed to the moving duct accommodating portion 5914, and the elevating gear 595 is accommodated in the gear accommodating groove 5922. In addition, the lifting gear 595 is meshed with the gear 5923.

As the elevating gear 595 rotates, the moving duct 592 ascends and descends in an up-and-down direction in a state of being accommodated in the moving duct accommodating portion 5913 of the dispenser housing 591.

Fig. 43 is a side sectional view of an air distributor in a state where a drying module according to an embodiment of the present invention is stopped, fig. 44 is a side sectional view of an air distributor in a state where a moving duct is raised by operation of the drying module, and fig. 45 is a side sectional view of an air distributor in a state where an external force is applied to the moving duct to lower the moving duct.

Referring to fig. 43, in a state where the drying module 50b is stopped, the moving duct 592 is completely received in the moving duct receiving portion 5913 of the dispenser housing 591 so as not to be exposed to the outside.

Referring to fig. 44, when the drying module 50b is operated, the blowing fan 55 is rotated together with or separately from the operation of the heater H. In addition, the lift motor 594 rotates to raise the moving duct 592 to a maximum height.

When the moving duct 592 is raised to a maximum height, the top surface of the moving duct 592 may be positioned higher than the top surface of the mattress set MS. Thereby, the indoor air discharged through the discharge grill 593 collides with the top surface of the mattress set MS and is diffused.

Referring to fig. 45, in a state where the moving duct 592 is raised, a vertical load may be applied to the top surface of the moving duct 592 due to carelessness of a user or curiosity of a child.

In detail, the moving duct 592 is lowered by a vertical load applied to the top surface of the moving duct 592. As the moving duct 592 descends, the lift motor 594 forces a counter rotation, which may cause a decrease in performance of the lift motor 594.

In order to prevent such a phenomenon, when a vertical load is applied to the moving duct 592, the lifting means ES including the motor housing 596, the lifting motor 594, and the lifting gear 595 is designed to be lowered together with the moving duct 591. Further, when the lifting means ES is lowered, the buffer spring 597 is contracted.

The guide slit 5912 is formed in the partition wall 911 of the dispenser case 591, and when the lifting means ES is lowered, the rotation shaft of the lifting motor 594 is lowered along the guide slit 5912.

When the vertical load acting on the moving duct 592 is removed, the elevating means ES is raised to the home position by the restoring force of the damper spring 597.

As described above, when a vertical load is applied to the moving duct 592, the moving duct 592 and the lifting means ES are integrally lowered, so that the rotation shaft of the lifting motor 594 is prevented from being reversely rotated, and the lifting motor 594 is prevented from being damaged.

Fig. 46 is a perspective view of a bed according to a third embodiment of the present invention, fig. 47 is a bottom perspective view of the bed according to the third embodiment of the present invention, fig. 48 is an exploded perspective view of the bed according to the third embodiment of the present invention, and fig. 49 is a longitudinal sectional view of the bed according to the third embodiment taken along line 49-49 of fig. 46.

Referring to fig. 46 to 49, a bed 10b according to a third embodiment of the present invention may include a mattress set MS1 and a drying module 50c for placing the mattress set MS 1.

In detail, the drying module 50c constituting the bed 10b of the third embodiment of the present invention may include: a motion control unit 300 tilting at least a portion of the mattress set MS1 placed on the top surface thereof; a shield frame 60 to which the motion control unit 300 is coupled at an inner side thereof; and a blower 52b attached to a bottom surface of the protection frame 60 and discharging indoor air to the mattress set MS 1.

The drying module 50c may further include legs 70 extending from four corners of the guard frame 60.

Also, the air blowing device 52b may include an air distributor 59 and an air blowing unit AS1, and the air distributor 59 may include a main air distributor 59a and a sub air distributor 59 b.

The air supply unit AS1 may include: a blower fan 55; a filter attached to an inlet of the blower fan 55; a supply duct 56 attached to the discharge port of the blower fan 55; and a heater H installed on a flow path of the supply duct 56.

Unlike the air blowing unit AS constituting the bed 10a of the first embodiment, the air blowing unit AS1 of the present embodiment does not require a suction duct. This is because the supply fan 55 is spaced from the installation surface of the bed 10b by the bed legs 70 provided in the protection frame 60, and there is no difficulty in sucking indoor air.

The air blowing unit AS constituting the bed 10b of the third embodiment has substantially the same configuration AS the air blowing device constituting the bed 10a of the second embodiment except that the suction duct is removed and the filter is attached to the suction port of the blowing fan 55, and therefore, the repeated explanation of the same configuration is omitted.

In particular, the structure and function of the air distributor 59 are as follows from the description of fig. 38 to 45.

As shown in fig. 49, the indoor air sucked by the sub-fan 55b of the blowing fan 55 is supplied to the sub-air distributor 59b through the sub-supply duct 55 b.

Further, the air sucked by the main fan 55a of the blowing fan 55 is supplied to the main air distributor 59a through the main supply duct 56 a.

Fig. 50 is a longitudinal sectional view of the mattress set constituting the bed of the third embodiment of the invention, taken along the line 50-50 of fig. 49.

Referring to fig. 50, unlike the mattress set MS constituting the

beds

10, 10a of the first and second embodiments, the mattress set MS1 constituting the bed 10b of the third embodiment does not include a motion control unit.

The mattress set MS1 does not include a motion control unit, but instead includes a module placement board 80 that supports the intensity control unit 20.

In other words, the mattress set MS1 may include a top piece 12.

In addition, the mattress set MS1 may further include a plurality of strength adjusting modules M1 that support the top 12 and adjust the strength of the mattress.

The mattress set MS1 may further include a plurality of partitions 40 disposed between adjacent strength adjustment modules M1.

The combination of the plurality of intensity adjustment modules M1 and the plurality of spacers 40 may be defined as an intensity control unit 20.

The mattress group MS1 includes: the module seating plate 80; a protection plate 13 covering side edges of the strength control unit 20 and the module seating plate 80; and a shroud 11 surrounding the module seating plate 80 and the shielding plate 13.

The structure and function of the strength adjustment module M1 and the structure and function of the partition 40 constituting the strength control unit 20 will be described in detail below with reference to the drawings, along with the description of the bed 10 according to the first embodiment.

Fig. 51 is a perspective view of a combination of a motion control unit and a guard frame constituting a drying module of a bed according to a third embodiment of the present invention, as viewed from above, and fig. 52 is a perspective view of the combination of the motion control unit and the guard frame, as viewed from below.

Referring to fig. 51 and 52, the motion control unit 300 according to an 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, so that the upper link driving shaft and the bracket 3211 and the fixed link 3212 can be integrally rotated.

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. 53 is a cross-sectional view of the motion generator taken along 53-53 of fig. 52, and fig. 54 is a longitudinal sectional view of the motion generator taken along 54-54 of fig. 53.

Referring to fig. 53 and 54, 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. 55 is a perspective view showing an operation of a motion control unit of a drying module constituting a bed according to a third embodiment of the present invention, and fig. 56 is a longitudinal sectional view of the motion control unit taken along 56-56 of fig. 55.

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. 55 and 56, when the tilt motor 3120 is operated by supplying power to the motion generator 3100, 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. 57 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. 58 is a partial longitudinal sectional view of the module installation plate taken along 58-58 of fig. 57, and fig. 59 is a partial longitudinal sectional view of the module installation plate taken along 58-58 of fig. 57 in a state of being inclined by a motion control unit.

Referring to fig. 57 to 59, 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. 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.

In addition, as shown in fig. 58 and 59, the plates adjacent to each other are connected in a bendable manner by one or a plurality of joint plates 85 and a plurality of joint hinges 86.

By the plurality of joint plates 85 and the joint hinge 86, the plurality of plates are maintained in 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. 59) 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.

Referring to fig. 60, AS described above, air supply unit AS1 provided in bed 10b of the third embodiment is characterized in that no additional suction duct is required.

Specifically, suction ports are formed in the bottom surfaces of the main fan 55a and the sub-fan 55b constituting the blower fan 55, and the filter 54a is attached to each of the suction ports.

Further, the main fan 55a and the sub-fan 55b are connected to the main air distributor 59a and the sub-air distributor 59b, respectively, so that the operations of the main air distributor 59a and the sub-air distributor 59b can be independently controlled.

The heaters H are installed inside the main supply duct 56b and the sub-supply duct 56b, respectively, so that hot air can be supplied to the mattress set MS 1.

Fig. 61 is a perspective view of a bed according to a fourth embodiment of the present invention, and fig. 62 is a bottom perspective view of the bed according to the fourth embodiment.

Referring to fig. 61 and 62, a bed 10d according to a fourth embodiment of the present invention may include: a mattress set MS; and a drying module 50d, the mattress set MS being placed on a top surface of the drying module 50 d.

In detail, since the mattress set MS of the bed 10d of the fourth embodiment is the same as the mattress sets MS provided in the

beds

10, 10a of the first and second embodiments, a repeated description thereof will be omitted.

The bottom surface of the drying module 50d of the bed 10d according to the fourth embodiment is configured to be in close contact with an installation surface, and specific configurations and functions of the drying module 50d will be described in more detail below with reference to the drawings.

Fig. 63 is a perspective view of a drying module constituting a bed according to a fourth embodiment of the present invention, fig. 64 is a perspective view showing the inside of the drying module, and fig. 65 is an exploded perspective view of the drying module.

Referring to fig. 63 to 65, a drying module 50d of an embodiment of the present invention may include: a group support; and a blower 52c provided inside and outside the group holder.

The set of brackets may include: a base cover 5100 placed on the installation surface; an edge frame 5200 having an open bottom surface shielded by the base cover 5100; and a top cover 5400 covering an open top surface of the edge frame.

In detail, the air blowing device 52c may include: a filter 54b detachably attached to the edge frame 5200; an air blowing unit AS2 placed in the internal space of the edge frame 5200; an air distributor 5500 coupled to an outlet of the air supply unit AS 2; and a spitting grill 5300 coupled to an upper end of the edge frame 5200.

The blowing unit AS2 may include a blowing fan 55 and a supply duct 56. The blowing fan 55 may include a main fan 55a and a sub-fan 55b, and the supply duct 56 may include: a main supply duct 56a connected to the discharge port of the main fan 55 a; and a sub-supply duct 56b connected to the discharge port of the sub-fan 55 b.

The air blowing device 52c may further include heaters H installed on the flow paths of the main supply duct 56a and the sub supply duct 56b, respectively.

The air blowing unit AS2 is substantially the same in structure and function AS the air blowing unit AS1 constituting the bed 10c of the third embodiment. The only difference is that the filter is mounted on the edge frame 5200, not on the suction port of the blowing fan 55.

Here, the air blowing device 52c may be defined to include only the air blowing unit AS2 and the air distributor 5500, and may also be defined to further include the filter 54b and the heater H.

The edge frame 5200 may be formed in a substantially rectangular band shape so as to have a vacant space formed therein. In addition, the edge frame 5200 has open top and bottom surfaces, and can be concealed by the base cover 5100 and the top cover 5400.

In addition, the base cover 5100 may be formed to be smaller than the size of the edge frame 5200.

Referring to fig. 66, a discharge grill 5300 constituting the drying module 50d according to the embodiment of the present invention is coupled to a discharge grill seating portion 5217 (see fig. 68) formed on the top surface of the edge frame 5200.

In detail, the spitting grid 5300 may include: a grill body 5310; and an outlet 5311 formed long inside the grill body 5310.

The discharge port 5311 may be formed to have the same length as or longer than the length of the sub-discharge port 5216 (see fig. 68) formed in the edge frame 5200.

Referring to fig. 67, the filter 54b constituting the drying module 50d of the embodiment of the present invention may include: a rectangular-shaped filter frame 5410; and a mesh 5420 installed at the filter frame 5410.

In detail, the filter frame 5410 may include: a rectangular band-shaped frame body 5411; a plurality of partition ribs 5412 dividing an inner space of the frame body 5411 into a plurality of small spaces; and a handle 5413 formed at one side edge of the frame body 5411.

The net 5420 is attached to the top surface of the filter frame 5410, and the plurality of partition ribs 5412 prevent the net 5420 from drooping downward.

The handle 5413 is bent from the edge of the long side portion of the frame main body 5411 in a direction intersecting the frame main body 5411, and when the filter 54b is completely inserted into the filter insertion port 5212 (see fig. 70), the filter 54b can be locked to the side surface of the edge frame 5200.

As another method, when the filter 54b is completely inserted into the filter insertion hole 5212, the outer side surface of the handle 5413 may be formed in a single surface with the side surface of the edge frame 5200. Further, it may be designed that a grip groove is formed on an outer side surface of the grip 5413, so that the user can easily separate the filter 54b by putting fingers into the grip groove.

Fig. 68 is a perspective view of an edge frame constituting a drying module according to an embodiment of the present invention, fig. 69 is a cut-away perspective view of the edge frame taken along 69-69 of fig. 68, and fig. 70 is an enlarged sectional view of a portion a of fig. 69.

Referring to fig. 68 to 70, AS described above, the edge frame 5200 constituting the drying module 50d of the embodiment of the present invention may be configured in a quadrangular belt shape so that a space accommodating the air blowing unit AS1 is formed inside.

Specifically, the edge frame 5200 includes two opposing long side portions and two opposing short side portions, and an opening 5211 is formed in one of the two short side portions. The edge frame 5200 may be described as failing to form a complete rectangle due to the presence of the opening portion 5211. The air distributor 5500 may be installed in the opening portion 5211.

A filter insertion port 5212 may be formed on two opposing long side portions of the edge frame 5200. The filter 54b is inserted into the filter insertion port 5212.

In detail, the filter insertion port 5212 is formed to be inclined downward as it goes closer to the inner side surface from the outer side surface of the edge frame 5200 so that the filter 54b can be easily inserted slidably.

Also, a filter seating surface 5214 for seating an end of the filter 54b may be formed inside the edge frame 5200. In a state where the filter 54b is completely inserted into the filter insertion port 5212, the filter seating surface 5214 may be formed to have a step shape in accordance with the shape of the filter 54b at a position where an end of the filter 54b is located.

A suction port 5213 may be formed in a bottom surface of the edge frame 5200 corresponding to a position directly below the filter 54 b. The suction port 5213 is spaced apart from the installation surface by a predetermined interval g by the base cover 5100, so that the indoor air can easily flow in. Since the suction port 5213 is formed at the lower side of the filter 54b, all the indoor air flowing into the suction port 5213 passes through the filter 54b, thereby filtering impurities contained in the indoor air.

The suction flow path 5213a is formed by being bent in a "l" shape from the suction port 5213, and penetrates through the inner surface of the edge frame 5200. That is, the suction port 5213, which is the end of the suction flow path 5213a on the suction side, is formed on the bottom surface of the edge frame 5200, and the end of the suction flow path 5213a on the discharge side is formed on the inner side surface of the edge frame 5200. Therefore, the indoor air outside the edge frame 5200 flowing in through the suction port 5213 flows into the inside of the edge frame 5200 through the suction flow path 5213 a. The indoor air flowing into the edge frame 5200 is guided to the inlet of the blower fan 55.

Also, a sub-supply conduit seating portion 5215 may be formed at the edge frame 5200. In detail, the sub-supply conduit seating portion 5215 may be formed to have a step of a prescribed depth from the top surface to the lower side of the edge frame 5200. Since the secondary supply pipe seating part 5215 is a part for seating an end of the secondary supply pipe 56b, its width may be formed to correspond to the width of the secondary supply pipe 56 b.

A sub-discharge port 5216 may be formed in a side surface of the edge frame 5200 corresponding to the outer end of the sub-supply conduit installation portion 5215. Thus, when the sub-supply duct 56b is placed in the sub-supply duct placement portion 5215, the air discharged from the sub-supply duct 56b is discharged to the outside of the edge frame 5200 through the sub-discharge port 5216.

Although the auxiliary supply duct installation portion 5215 is shown to be formed above the suction port 5213, the present invention is not limited thereto. That is, the suction port 5213 may be formed in the center of the long side portion of the edge frame 5200, but may be formed closer to one of the two short side portions.

Fig. 71 is a perspective view of an air distributor constituting a drying module according to an embodiment of the present invention, fig. 72 is a sectional view of the air distributor taken along 72-72 of fig. 71, and fig. 73 is a partial sectional view of the drying module taken along 73-73 of fig. 64.

Referring to fig. 71 to 73, the air distributor 5500 constituting the drying module 50d of the embodiment of the present invention may include: a main supply conduit support 5510; and a dispenser body 5520 coupled to an outer surface of the supply pipe support portion 5510.

The top surface of the main supply pipe support portion 5510 may be formed to have a plurality of steps, but the present invention is not limited thereto.

In detail, a heater seating portion 5511 may be formed in a stepped manner on a top surface of the main supply duct support portion 5510. More strictly, a heater case having a heater accommodated therein is disposed in the heater disposition portion 5511.

A communication hole 5512 is formed at an outer edge of the main supply pipe support 5510, and an end of the main supply pipe 56a may be closely attached to the communication hole 5512 or inserted into the communication hole 5512.

The main supply duct support 5510 is a structural element of the air distributor 5500, and may be mounted to an opening portion formed on a short side portion of the edge frame 5200, and on the other hand, may be constituted as a part of the edge frame 5200, thereby realizing a structure in which the edge frame is constituted by a complete quadrangular belt shape. In the case of such a structure, the air distributor 5500 may be understood as including only the distributor body 5520.

The lower portion of the dispenser body 5520 may extend along a partial bottom surface and a side surface of the main supply pipe support portion 5510 in a manner having an arc. An inlet port 5521 is formed on an inner surface of the dispenser body 5520, that is, a surface in close contact with the main supply line support portion 5510. The inflow port 5521 communicates with the communication hole 5512 of the main supply line support portion 5510.

A diffuser 5522 is formed inside the dispenser body 5520, and an outlet 5523 is formed on the top surface of the dispenser body 5520.

The side of the dispenser body 5520 may include an inner side contacting the main supply pipe support 5510 and an outer side defined at an opposite side of the inner side.

In addition, the outflow port 5523 may be formed at a position closer to the inner side surface than the outer side surface. That is, the distance from the rear end of the outflow port 5523 to the outer side surface may be designed to be longer than the distance from the front end of the outflow port 5523 to the inner side surface.

Further, a diffuser portion 5522 is formed inside the dispenser body 5520. The diffuser portion 5522 is configured to have a wider area from the inlet 5521 toward the outlet 5523.

An air guide (air guide) 5524 is formed inside the dispenser body 5520 corresponding to the rear end of the outflow port 5523. The front surface of the air guide 5524 is formed to be inclined toward the front end of the outlet port 5523 as it gets closer to the upper side. Accordingly, the cross-sectional area of the diffuser portion 5522 corresponding to the lower side of the air guide 5524 is formed larger than the cross-sectional area of the outlet port 5523.

By forming the front surface of the air guide 5524 to be inclined toward the front end of the outlet port 5523, the air discharged through the outlet port 5523 is discharged to the top surface side of the mattress group MS 1.

When the heater H disposed in the flow path of the main supply duct 56a is turned on, hot air is discharged through the outlet port 5523, and the mattress set MS can be dried.

In a state where the mattress group MS is placed on the top cover 5400, the upper end of the dispenser body 5520 is located at a position spaced apart from the top surface of the mattress group MS to the lower side by a prescribed distance.

Fig. 74 is a perspective view of a base cover constituting a drying module according to an embodiment of the present invention, and fig. 75 is a partial longitudinal sectional view of the base cover taken along 75-75 of fig. 74.

Referring to fig. 74 and 75, the base cover 5100 closes the open bottom surface of the edge frame 520.

In detail, the base cover 5100 includes: a rectangular plate-shaped bottom face portion 5110; and a bent portion 5120 bent upward from an edge of the bottom portion 5110 or extending in a curved manner.

When the base cover 5100 is coupled to the bottom surface of the edge plate 5200, the bottom surface of the edge plate 5200 is spaced apart from the installation surface according to the height of the bent portion 5120. Accordingly, the suction port 5213 formed in the bottom surface of the edge plate 5200 is also spaced from the installation surface, so that the flow resistance generated when the indoor air is sucked into the suction port 5213 can be minimized.

Referring to fig. 76, a quilt BL is placed above the mattress set MS, and in a state where the end of the quilt is hung to a position lower than the outlet port 5523 of the air distributor 5500, the air spouted through the outlet port 5523 flows into a space between the mattress set MS and the quilt BL.

When the heater H is turned on, the hot air discharged through the outlet port 5523 flows between the mattress set MS and the quilt BL, thereby drying the cover 11 and the quilt BL.

In particular, in summer when the humidity is high, the mattress set MS and the quilt BL are quickly dried by the hot air discharged through the outlet port 5523, and thus the user can feel a fluffy feeling when covering the quilt.

In particular, even in the case where the mattress group MS is not covered with the quilt BL, the air spouted from the outflow port 5523 rises along the side surface of the mattress group MS by the coanda effect (coanda effect) and then flows toward the top surface of the mattress group MS along the curved surface of the upper end corner of the mattress group MS.

Referring to fig. 77, the sub discharge port 5216 formed in the top surface of the edge frame 5200 may be designed to be located at least inside a vertical plane L passing through the side surface of the mattress group MS in a state where the mattress group MS is placed on the canopy 5400.

In other words, the sub discharge port 5216 may be formed at a position spaced from a vertical plane L passing through the side surface of the mattress group MS toward the center of the edge frame 5200.

Alternatively, a vertical plane passing through the outer edge of the sub discharge port 5216 may be the same plane as the vertical plane L passing through the side surface of the mattress group MS, or may be located at a position spaced apart from the center of the edge frame 5200.

According to such a configuration, the air discharged through the secondary discharge port 5216 can flow along the curved surface portion and the side surface portion at the lower end of the mattress set MS and the curved surface portion at the upper end of the mattress set MS by the coanda effect described above, and spread to the top surface of the mattress set MS.

Hereinafter, a humidity control method of a bed for maintaining the surface humidity of a mattress set, which a user contacts with the body, within a set range will be described in detail with reference to the accompanying drawings and flowcharts.

Fig. 78 is a top view of a moisture sensing sheet disposed in a mattress set of a bed of an embodiment of the invention.

Referring to fig. 78, the humidity sensing sheet HS provided in the mattress set of the bed of the embodiment of the present invention may be formed to have a size corresponding to that of the topper 12, and may be integrally combined with the mantle 11.

A plurality of humidity sensors ha may be installed on the humidity sensing sheet HS, and the plurality of humidity sensors ha are electrically connected to each other and finally connected to the control part of the humidity sensing sheet HS. The control section of the humidity sensing sheet HS is defined as a sub-control section, and the control section of the bed is defined as a main control section.

The main control part may transmit a humidity sensing instruction to the sub control part or receive a humidity value from the sub control part.

The main control unit may control operations of a blower fan and a heater constituting the blower device based on the received humidity value.

The main control unit and the sub-control unit may be connected to a humidity controller (described later) by wireless communication. Further, a humidity adjustment command may be output from the humidity controller, and the humidity adjustment command may be transmitted from the main control unit to the sub-control unit after being transmitted to the main control unit. As another method, a humidity adjustment command may be directly transmitted from the humidity adjuster to the sub-control portion.

The humidity sensing sheet HS is divided into a plurality of regions R1 to R8, and humidity control can be performed for each region. The number of the regions may be variously set according to design conditions.

The number of humidity sensors ha provided in each area may be set as appropriate in consideration of cost, ease of installation, and the like. Further, the humidity values of the respective different regions may be determined as an average of the humidity values sensed from the humidity sensors ha disposed at the respective regions. Further, a method of removing the maximum value and the minimum value from the humidity values sensed by the humidity sensors ha provided in the respective regions may be used, and various methods of calculating the humidity values of the respective regions may be suggested.

The humidity sensor ha can be applied to various forms of humidity sensors including a resistance type humidity sensor including a thin film form of a printed electrode on a flexible circuit board. Note that, when the user lies over the humidity sensing sheet HS, in order to avoid the user's body from feeling uncomfortable due to interference of the humidity sensor, the humidity sensor preferably employs a humidity sensor of a maximally flat form. In addition, the humidity sensor and the cover sleeve are freely bent together, so that the humidity sensing circuit is prevented from being damaged due to bending.

In addition to the method in which the humidity sensing sheet HS is integrally coupled with the mantle 11, the humidity sensing sheet HS may be coupled on the top surface of the top member 12.

As still another method, the humidity sensor ha may be directly mounted on the top surface of the top member 12, in addition to the method in which the humidity sensor ha is provided on an additional thin plate.

The humidity sensor ha is provided to sense not only the humidity of the top part 12 but also the humidity of the mantle 11 covering the top part 12.

The mattress sets MS, MS1 may be maintained in a wet state due to secretions including sweat released from the user's body during sleep, or water spilled by mistake, or water absorbed from wet air in summer, etc.

When the wet state of such mattress sets continues for a long time, mold or breeding mites are generated in the cover 11 or the top piece 12, resulting in a deterioration of the hygienic condition, with the result that the health of the user is adversely affected.

Such a wet condition may only occur in certain portions of the mattress set, particularly the encasement 11 or topper 12. In order to effectively eliminate the over-humidity state locally occurring as described above, it is necessary to effectively control the humidity sensing sheet and the drying module such that the drying module intensively supplies the hot wind to the over-humidity area.

Hereinafter, a method for controlling the drying module based on the humidity value sensed by the humidity sensing sheet HS will be described in detail with reference to a flowchart.

Fig. 79 is a flowchart illustrating a humidity control method of a bed according to an embodiment of the present invention, and fig. 80 to 84 are display screens of a humidity conditioner illustrated in the course of performing the humidity control method of a bed according to an embodiment of the present invention.

Referring to fig. 79, the user first turns on the power supply to the

beds

10a, 10b, 10c (S110).

In detail, the power-on of the bed can be understood as including a case where the

motion control unit

30, 300 and at least one of the humidity sensing sheet HS, the humidity regulator 800 (to be described later), and a control box provided on the bed are powered on.

In this state, the user selects the automatic dehumidification operation by operating the humidity controller 800 in a remote control mode that can be connected to the control units of the

beds

10, 10a, 10b, and 10c by wireless communication (S120).

As is well known to those skilled in the art, a microcomputer is provided on the printed circuit board of the control box, and the microcomputer performs the function of the control section. Therefore, the control section provided on the printed circuit board of the microcomputer can be understood as the above-described main control section.

Referring to fig. 80, a humidity conditioner 800 according to an embodiment of the present invention 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 8100.

The humidity controller 800 may further include a plurality of mechanical input keys, and may also include a plurality of input keys provided on the display 8300 in a touch key manner like 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 humidity controller 800 and the sub-controller are brought into a state in which communication is possible. In addition, an input key image selectable by the user may be displayed on the display 8300.

Also, the plurality of mechanical input keys may include at least one of a mode selection key 8600 for selecting an automatic dehumidification operation mode, a start/stop key 8700 for inputting a start or stop command of the selected mode, and a reference humidity setting key 8800 for setting a reference humidity.

A temperature sensor 8400 for sensing an indoor temperature and a wireless communication module 8500 for wirelessly communicating with the main control unit and the sub control unit may be built in one side of the main body 8100. The wireless communication module may include Wi-Fi, bluetooth, zigbee (zigbee), etc.

The temperature sensor 8400 is disposed at one side of the humidity sensing sheet HS or one side of the

beds

10, 10a, 10b, and 10c, and the sensed temperature value may be transmitted to the sub-control part or the main control part through a wired or wireless communication module.

The reference humidity becomes a reference for determining whether the humidity of the mattress set sensed from the humidity sensing sheet HS is too high at the current temperature or is at an appropriate level at the current temperature.

The reference humidity represents an appropriate humidity corresponding to the indoor temperature sensed by the temperature sensor 8400. I.e. it can be understood as meaning the humidity at which the user feels the most comfortable at the respective temperature.

For example, the reference humidity may be set differently according to seasons, and thus, an appropriate humidity may be determined according to different temperature ranges, and such temperature-humidity correspondence data may be stored in the main control part in a look-up table form.

For example, appropriate humidity values corresponding to temperatures in different seasons may be stored in the form of a look-up table as shown in table 1 below.

TABLE 1

Distinguishing	Summer	Spring/autumn	In winter
				Optimum temperature
	24℃～28℃	19℃～23℃	18℃～20℃
				Optimum humidity
	60％	50％	40％

However, although the reference humidity may be stored in a look-up table form and automatically selected, the user may freely set the reference humidity at the current temperature using the reference humidity setting key 8800.

When the user selects the automatic dehumidifying operation using the mode selection key 8800, the plurality of humidity sensors ha provided at the humidity sensing thin plates HS sense the current humidity of the mantle 11 or the top 12 (S130). As described above, the operation of the sub-control part receiving the dehumidifying operation command to make the plurality of humidity sensors ha sense the current humidity may be defined as the current humidity scanning operation.

Referring to fig. 81, during the execution of the current humidity scanning operation, text, images or moving image information for prompting that humidity is currently being scanned may be output on the display 8300 of the humidity controller 800.

The scanned humidity values, i.e., the humidity data sensed by the plurality of humidity sensors ha, are transmitted to the main control part (S140).

The main control unit processes and analyzes the humidity values transmitted from the sub-control unit, and extracts average humidity values of different areas (S150). Further, the extracted average humidity values of the different regions are used to generate humidity distribution images of the different regions, which are transmitted to the humidity controller 800.

At this time, as shown in fig. 82, a humidity distribution image of a different area is output on the display 8300 of the humidity controller 800 (S160).

In addition, the main control part sets a normal humidity range in consideration of an upper and lower error range based on the set reference humidity, and determines whether there is an area having a humidity value deviating from the normal humidity range among the plurality of areas (S170). If it is determined that there is no region having a humidity value deviating from the normal humidity range, a dehumidification completion message is output (S171).

When it is determined that there is an excessive humidity area deviating from the normal humidity range, the excessive humidity area is visually highlighted as shown in fig. 82 so that the user can easily confirm it.

At the same time, the main control part operates the heater H, the blowing fan 55, and the throttle 561 (S180).

Specifically, the blower fan connected to the supply duct extending to the excess humidity region is driven for a set time, and the heater H disposed in the flow path of the supply duct extending to the excess humidity region is turned on. At the same time, a throttle 561 disposed in a flow path of a supply duct connected to the excess humidity region is opened, and hot air is intensively discharged to the excess humidity region.

When the dehumidification operation (or the drying operation) is being performed while hot air is being supplied to the mattress groups MS and MS1, a message indicating that the dehumidification operation is in progress may be output on the display 8300 of the humidity controller 800 as shown in fig. 83.

When the driving time of the blower fan has elapsed for a set time (S190), the heater H and the blower fan 55 are stopped from being driven, and the throttle valve 561 is closed (S200).

Further, the process following step S130 of scanning the current humidity is repeatedly executed.

When the main control unit determines that the humidity of the area determined as the over-humidity area first falls within the normal humidity range by performing the dehumidification operation once or more, a dehumidification completion message may be output as shown in fig. 84.

In this case, together with the dehumidification completion message, a humidity distribution image of a different area indicating the current humidity value after the dehumidification operation is performed may be displayed on the display 8300 of the humidity controller 800.

According to the humidity control method of the bed of the embodiment of the present invention, the quilt and the cover can be always kept in a dry state by automatically supplying hot air to the specific part with the excessively high humidity, and thus the optimal sleeping state can be provided.

Claims

1. A bed, wherein the bed is provided with a bed body,

the method comprises the following steps:

a mattress set including a mattress unit on which a user's body is placed on a top surface thereof and a cover covering the mattress unit; and

a drying module which is placed on an installation surface, supports the mattress set, and supplies dry air to the inside of the mattress set;

the drying module includes:

the mattress set comprises a set bracket, a mattress support and a mattress support, wherein the set bracket comprises a top surface part for placing the mattress set and a side surface part which extends downwards along the edge of the top surface part and is contacted with the setting surface; and

the air supply device is arranged on the bottom surface of the group bracket;

the air supply device includes:

an air supply fan;

a suction duct connected to a suction port of the blower fan, and sucking indoor air through suction ports formed at both ends of the suction duct; and

and a plurality of supply ducts connected to the outlet of the blower fan to supply the mattress set with the sucked indoor air.

2. The bed of claim 1,

the mattress unit includes a topper of memory cotton material having a length greater than a width.

3. The bed of claim 2,

the mattress unit further comprises an intensity control unit for adjusting the intensity of the mattress, the intensity control unit is placed at the lower side of the top piece;

the intensity control unit comprises a plurality of intensity adjusting modules.

4. The bed of claim 3,

the mattress unit further comprises a plurality of partition members which are clamped between the adjacent strength adjusting modules in the length direction of the top member;

the plurality of partition members are made of memory cotton material.

5. The bed according to claim 4,

the mattress unit further includes:

a motion control unit supporting the strength control unit to incline at least a portion of the mattress set.

6. The bed of claim 5,

the mattress unit further includes:

and a protection plate surrounding edges of the strength control unit and the motion control unit.

7. The bed of claim 1,

a plurality of communication holes are formed in the portion of the cover forming the bottom surface of the mattress group.

8. The bed of claim 7,

a plurality of mounting holes are formed on the top surface part of the group of brackets;

when the mattress set is placed on the top surface portion of the set support, the plurality of communication holes communicate with the plurality of mounting holes.

9. The bed of claim 8,

the air supply device also comprises a plurality of discharge pipelines which are arranged on the top surfaces of the plurality of supply pipelines, and the top surfaces of the plurality of discharge pipelines are open;

the supply conduit and the plurality of discharge conduits being in communication with one another;

the top surfaces of the plurality of discharge pipelines, which are open, are respectively connected with the plurality of mounting holes.

10. The bed of claim 1,

a plurality of discharge ports of the blowing fan are arranged on the side surface of the blowing fan along the circumferential direction of the blowing fan,

the plurality of supply conduits extend from the plurality of discharge ports, respectively.