Motion bed provided with mattress having embedded plate member with elastic restoring force

Abstract

Disclosed is a motion bed provided with a mattress having an elastic plate. The motion bed provided with a mattress having an elastic plate, according to the present invention, comprises: a mattress comprising a mattress portion and an integral elastic plate which is formed to have restoring elasticity to return to its original state after being bent by an external force; and a motion operation portion comprising a frame coupled to the elastic plate, and a driving portion which is provided in the frame and allows the mattress to be erected or lifted to a set angle so as to be bent. Thus, due to the operation of the driving portion, the frame bends the mattress or returns the mattress to its original flat state.

Description

Motion bed with a mattress built with a plate with elastic restoring power

[0001] The present invention relates to a motion bed having a mattress with a built-in plate having elastic restoring force, wherein an elastic plate having the same size as the mattress and a predetermined thickness is arranged on the bottom of the mattress, thereby eliminating the need for a separate part for connecting the mattress to the motion operating part of the motion bed, and the motion bed having a mattress with a built-in plate having elastic restoring force, without requiring the mattress to be divided into multiple pieces.

[0002] Generally, mattresses for beds intended for sleeping or resting can be classified into mattresses made of spring elastic materials such as Bonnell springs and pocket springs, mattresses with elastic materials made of latex, mattresses with elastic materials made of memory foam, mattresses with elastic materials made of sponge, and mattresses with elastic materials made of cotton.

[0003] As a prior art of mattresses, a bed mattress is disclosed in Korean Utility Model Registration No. 20-0344265 (announcement date: March 10, 2004). The bed mattress comprises a spring structure composed of springs arranged in multiple rows in the longitudinal and transverse directions, a base portion composed of felt laminated on the upper and lower portions of the spring structure, and non-woven fabric laminated on the upper and lower portions of the felt, a foam laminated on the upper portion of the base portion to form a sleeping surface and elastically support and disperse local pressure generated from the human body when lying down to receive uniform cushioning pressure from the spring structure of the base portion, and a cover sheet covering the foam and the base portion.

[0004] These mattresses are designed to elastically support the parts of the human body lying on the upper part of the base, thereby evenly distributing local pressure and providing comfort.

[0005] Recently, a motion bed has been proposed that allows the shape of the mattress to be changed at will to increase user convenience.

[0006] As a motion bed according to prior art, a motion bed is disclosed in Korean Patent No. 10-2618992 (publication date: December 29, 2023). As illustrated in Fig. 1, the motion bed includes a first frame (1), a second frame (2), a third frame (3), and a fourth frame (4), and first and second driving units (6, 7) for driving the first, second, third, and fourth frames (1, 2, 3, and 4) at various angles.

[0007] A split mattress (mattress) is installed on the upper surface of each frame (1, 2, 3, 4).

[0008] The motion bed of this structure can provide convenience to users watching TV by allowing the user to take a comfortable posture with the upper body tilted and the legs bent as the first, second, third, and fourth frames (1,2,3,4) are adjusted to different angles by the operation of the first and second driving units (6,7).

[0009] However, since the motion bed of this structure is made of mattresses made of cotton, sponge, latex, memory foam, etc., it is not free to bend, so the mattress is divided into separate parts to support the upper body, hips, thighs, and calves respectively. In addition, there was a problem that the structure was complicated because the first, second, third, and fourth frames had to be formed to support each mattress, and many parts were used. In addition, because it was composed of many parts, there was a problem that the manufacturing cost increased because a lot of money and manpower were invested in the assembly work.

[0010] Recently, low-cost motion beds have been introduced that simplify the construction by installing wooden supports inside the mattress, thereby reducing the manufacturing cost. However, there is also the problem that the durability is significantly reduced because the support connecting the mattress and the driving unit is made of wood.

[0011] The purpose of the present invention is to provide a means for not only eliminating the need to divide a mattress by placing an elastic plate having the same size as the mattress and a predetermined thickness on the bottom of the mattress, but also eliminating the need for a separate part for connecting the mattress to the motion operating part of a motion bed, thereby significantly reducing the number of parts, improving durability, improving assembly workability, and reducing manufacturing costs.

[0012] In addition, the purpose of the present invention is to provide a means that can significantly simplify and reduce manufacturing costs by eliminating the need to manufacture mattresses by dividing them into sections and manufacturing them separately.

[0013] The problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0014] The above object is achieved by a motion bed having a mattress having an elastic plate, which comprises a mattress having a mat portion and an integral elastic plate having a thickness of 2.5 to 3.5 mm and a size corresponding to the shape of the bottom surface of the mat portion so as to have restorative elasticity that is bent by an external force and returns to an original state, and which is arranged on the bottom surface of the mat portion to maintain and support the shape of the mat portion; and a motion operating unit including a frame that is settled on the ground or has a plurality of legs coupled to the bottom surface and coupled to the elastic plate, and a driving unit provided on the frame for raising or bending the mattress at a set angle, wherein the frame is characterized in that the operation of the driving unit causes the mattress to bend or return to a flat original state.

[0015] The above elastic plate may be made of one or more plates selected from among metal plates, synthetic resin plates, fiberglass reinforced plastic (FRP), graphite plates, and fiberglass plates.

[0016] The above elastic plate may be made of one or more plates selected from among metal plates, synthetic resin plates, FRP (Fiberglass Reinforced Plastic), graphite plates, and fiberglass plates coated or attached with rubber, silicone, synthetic resin, or fabric materials.

[0017] When the elastic plate is made of a fiberglass plate, the fiberglass plate may be made of a polyolefin resin as a thermoplastic resin; glass fiber made of continuous fibers and non-continuous fibers; and at least one additive selected from the group consisting of an antioxidant, a heat stabilizer, a dispersant, a compatibilizer, a pigment, and combinations thereof.

[0018] The above frame may be formed of a fixed frame comprising a pair of installation members arranged at a distance from each other and each of which has an intermediate portion joined to both intermediate portions of the elastic plate, and each of which has a shorter length than the installation members and connects each end and intermediate portion of the installation members; and a movable frame having one end axially joined to each of the installation members on both sides and each of which is joined to the bottom surfaces of both sides of the elastic plate.

[0019] A buffer member may be provided on each end surface of the connecting member connecting each end of the above-mentioned installation member to buffer impact when in contact with the above-mentioned movable frame.

[0020] The above movable frame may include an upper body support member, each end of which is connected to one side of the central portion of each of the two installation members via a first axis, each other end being connected to each other, an upper body support region of the elastic plate being connected to an upper surface thereof, and which rotates upward about the first axis to obliquely support the upper body support region when the driving unit operates; and a first lower body support member, each end of which is connected to the opposite side of the central portion of each of the two installation members via a second axis so as to be symmetrical with the upper body support member, each other end being connected to each other, and which rotates upward about the second axis to upwardly support the lower body support region of the elastic plate when the driving unit operates.

[0021] At the other end of the first lower body support member, a roller may be provided to be coupled to the lower body support area of ​​the elastic plate or to make rolling motion by contacting the bottom surface of the lower body support area when the driving unit is in operation.

[0022] The above movable frame may further include a second lower body support member, each end of which is connected to each end of the above-mentioned installation members on both sides by a third axis, and each other end is connected to each other by a connecting bar, for supporting the lower body support area.

[0023] At the other end of the second lower body support member, an extension part having a height equal to the step difference when the second and third axes form a step in the upper and lower directions based on the bottom surface of the fixed frame is provided, and the extension part can be coupled to the lower body support area.

[0024] The above driving unit may be formed of an actuator that is provided to face opposite directions to the middle portion of the installation member or the connecting member, each end of which is axially coupled, and each other end of which is axially coupled to the upper body support member and the lower body support member.

[0025] The above driving unit comprises: a pair of upper body driving actuators each having a first driving screw rod and arranged on one side of the interior of each of the installation members; a first upper body rotating plate formed in a triangular or fan shape, one side of which is coupled to each end of the upper body support member, a central angle region of which is coupled to the installation member by the first axis, and a first rotating support block having a screw hole to which the first driving screw rod is fastened is coupled on the opposite side; a pair of lower body driving actuators each having a second driving screw rod and arranged on the interior of each of the installation members in an opposite direction to the upper body driving actuators; And each lower body rotation plate is formed in a triangular or fan shape, one side of which is coupled to each end of the first lower body support member, a central angle region of which is coupled to the installation member by the second axis, and a second rotation support block having a screw hole to which the second driving screw rod is fastened is coupled to the opposite side, and when the upper body driving actuator is driven, as the first driving screw rod rotates, the upper body rotation plate to which the first rotation support block is coupled rotates around the first axis to rotate the upper body support member upward, and as the second driving screw rod of the lower body driving actuator rotates, the lower body rotation plate to which the second rotation support block is coupled rotates around the second axis to rotate the first lower body support member upward.

[0026] The above upper body driving actuator and the above lower body driving actuator can be axially coupled to the respective installation members so that the upper body rotating plate and the lower body rotating plate are linked to the rotational operation.

[0027] In the middle part of the above-mentioned installation member, a housing having an internal space of a height that accommodates the upper and lower body rotating plates in an erected state in which the upper and lower body driving actuators are installed may be provided so as to protrude upward.

[0028] On the bottom surface of the above-mentioned installation member, a plurality of fastening portions are provided, and the legs formed to a predetermined length can be selectively connected to the fastening portions.

[0029] According to the present invention, since the mattress is provided with an integrated elastic plate and the elastic plate is coupled to the motion operating unit, a separate component for coupling the mattress to the motion operating unit becomes unnecessary, and since the elastic plate is configured as an integrated piece, not only can the number of parts for supporting the mattress be significantly reduced, but also, since a thin elastic plate is applied to the mattress, the effect of not having to increase the thickness of the mattress can be provided.

[0030] In addition, since the elastic plate applied to the mattress has restorative elasticity that returns to its original state after being bent by an external force, it is possible to provide an effect in which the mattress can be quickly restored to its original state when the motion driving unit returns to its original state.

[0031] In addition, since the mattress is equipped with an elastic plate having sufficient rigidity and resilience, it is not necessary to manufacture mattresses for the upper body, buttocks, and lower body separately, thereby significantly reducing the manufacturing cost of the motion bed and providing the effect of significantly improving productivity, assembly workability, transportation, and installation workability.

[0032] FIG. 1 is an exploded perspective view showing a motion bed having a mattress with an elastic plate according to a first embodiment of the present invention.

[0033] Fig. 2 is a perspective view of a motion bed having a mattress with an elastic plate as shown in Fig. 1 in a combined state, showing a state in which the motion operating part is in operation.

[0034] Fig. 3 is a front view showing a motion bed having a mattress with an elastic plate as shown in Fig. 1.

[0035] Figures 4 and 5 are cross-sectional views showing a motion bed equipped with a mattress having the elastic plate shown in Figure 1, and are sectional views showing the state before and after operation.

[0036] FIG. 6 is a front view showing a motion bed having a mattress with an elastic plate according to a second embodiment of the present invention.

[0037] FIG. 7 is a front view showing a motion bed having a mattress with an elastic plate according to a third embodiment of the present invention.

[0038] *Explanation of symbols for major parts of the drawing*

[0039] 20: Mattress 22: Mattress

[0040] 24: Elastic plate 26: Cover member

[0041] 30: Motion actuator F: Frame

[0042] 32: Fixed frame 34: Movable frame

[0043] 36: Drive unit

[0044] The present invention comprises a mattress comprising a mat portion, and an integral elastic plate having a thickness of 2.5 to 3.5 mm and a size corresponding to the shape of the bottom surface of the mat portion, and having restorative elasticity that allows it to be bent by an external force and return to its original state, and arranged on the bottom surface of the mat portion to maintain and support the shape of the mat portion; and a motion operating unit comprising a frame that is rested on the ground or has a plurality of legs coupled to the bottom surface and coupled to the elastic plate, and a driving unit provided on the frame to raise or bend the mattress at a set angle, wherein the frame is configured to bend the mattress or return it to a flat original state by the operation of the driving unit. Therefore, since the mattress is provided with an integral elastic plate, a separate component for coupling the mattress to the motion operating unit is unnecessary. Since the elastic plate is configured as an integral part, the number of parts for supporting the mat portion can be significantly reduced. Since the thin elastic plate is applied to the mattress, the thickness of the mattress does not need to be increased. Since the mattress is not configured separately, segmented areas are not generated in the mattress.

[0045] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, in describing the present invention, descriptions of functions or configurations already known will be omitted to clarify the gist of the present invention.

[0046] Among the attached drawings, FIG. 1 is an exploded perspective view showing a motion bed having a mattress having an elastic plate according to a first embodiment of the present invention, FIG. 2 is a perspective view showing a motion bed having a mattress having an elastic plate as shown in FIG. 1 in a coupled state, showing a state in which a motion operating part is operated, FIG. 3 is a front view showing a motion bed having a mattress having an elastic plate as shown in FIG. 1, and FIGS. 4 and 5 are cross-sectional views showing a motion bed having a mattress having an elastic plate as shown in FIG. 1, showing states before and after operation.

[0047]

[0048] As illustrated in FIGS. 1 to 5, a motion bed (10) having a mattress with an elastic plate according to a preferred first embodiment of the present invention is intended to provide an optimal resting environment by allowing the user's upper body and legs to be raised at a predetermined angle or to raise the upper body of a patient with difficulty in moving. The motion bed (10) of the present invention includes a mattress (20) having an integral elastic plate (24), and a motion operating unit (30) that is coupled to the bottom surface of the elastic plate (24) of the mattress (20) to bend the mattress (20) so that the user can support the upper body diagonally or return it to its original state.

[0049]

[0050] Let me explain this in more detail.

[0051] As illustrated in FIGS. 1 to 4, the mattress (20) is configured to support the user's body by providing a cushion so that the user can rest or sleep. The mattress (20) includes a mat portion (22) formed of a plurality of springs and a cushion portion, or formed of one or more materials selected from latex, memory foam, sponge, or cotton. The mattress portion (20) includes an integral elastic plate (24) disposed on the bottom surface of the mat portion (22) so as to maintain and support the shape of the mat portion (22), and has a thickness (t) of 2.5 to 3.5 mm and a size corresponding to the shape of the bottom surface of the mat portion (22) so as to have restorative elasticity that can be bent by an external force and return to its original state.

[0052] Since the configuration of the mat (22) is known, a detailed description is omitted.

[0053] The elastic plate (24) is arranged on the bottom surface of the mat portion (22) to maintain and support the shape of the mattress (20), i.e., the shape of the mat portion (22), and to return it to its original state when it is bent. The elastic plate (24) is formed to have a thickness (t) of 2.5 to 3.5 mm and a size equal to or smaller than the bottom surface of the mat portion (22) so as to have restorative elasticity to be bent by an external force and return to its original state.

[0054] The elastic plate (24) has a non-divided, integral plate structure and is formed in the same shape as the mat portion (22). In the present embodiment, it is formed in a rectangular shape to correspond to the mat portion (22), which is a rectangular shape whose length direction is longer than its width direction.

[0055] In particular, since the elastic plate (24) is formed in a rectangular shape, bending can occur more freely in the longitudinal direction than in the width direction. In other words, bending in a direction with a longer length is easier, and restoration after bending can also occur quickly.

[0056] The elastic plate (24) may be formed of one or more plates selected from among metal plates, synthetic resin plates, fiberglass reinforced plastic (FRP), graphite plates, and fiberglass plates. In addition, the elastic plate (24) may be formed of one or more plates selected from among metal plates, synthetic resin plates, fiberglass reinforced plastic (FRP), graphite plates, and fiberglass plates, to which rubber, silicone, synthetic resin, or fabric materials are coated or attached.

[0057] This example is based on a fiberglass plate formed into a rectangular shape with a thickness of 2.5 to 3.5 mm.

[0058] The material and manufacturing process of the elastic plate (24) made of fiberglass plate are as follows.

[0059] Fiberglass (glass fiber) is mixed with molten polypropylene (PP) and then formed into a plate with a thickness (t) of 2.5 to 3.5 mm, and the shape is formed into a rectangular shape with the length being longer than the width.

[0060] More specifically, the fiberglass plate includes a thermoplastic resin and glass fibers composed of continuous fibers and non-continuous fibers in an amount of 60 to 80 wt% or less, and the weight ratio of the continuous fibers to the non-continuous fibers can be formed to be 4:1 to 6:1. At this time, the thermoplastic resin can be composed of a polyolefin resin, and at least one additive selected from the group consisting of an antioxidant, a heat stabilizer, a dispersant, a compatibilizer, a pigment, and a combination thereof can be further added.

[0061] Fiberglass boards made of such fiber-reinforced composites have a flexural modulus of 25-35 GPa, are high strength and rigidity, have excellent impact strength, and have excellent resilience after deformation, with a flexural modulus of 25 GPa to 35 GPa.

[0062] The elastic plate (24) made of fiberglass plate manufactured through the above-described process is formed to have a thickness (t) of 2.5 to 3.5 mm.

[0063] The thickness (t) of the elastic plate (24) is 2.5 to 3.5 mm. If the thickness (t) is formed to be less than 2.5 mm, bending due to the set load occurs too easily, making it difficult to maintain or support the shape of the mattress (20). If the thickness (t) is formed to be more than 3.5 mm, bending due to the set load does not occur, making it impossible to bend the mattress (20) into a desired shape. Therefore, it is preferable that the thickness (t) of the elastic plate (24) be formed to be 3 mm.

[0064] To explain more specifically through an experimental example, as shown in [Table 1] below, when the elastic plate (24) is formed with a length of 2000 mm, a width of 900 mm, and a thickness (t) of 3 mm, and both ends of the elastic plate (24) are supported by a support, when a load of 175 kgf is applied to the center, the elastic plate (24) bends downwards in the center with respect to the both ends as the standard to form a radius of curvature of approximately 309 mm, and the angle formed by the both ends with respect to the center is approximately 70°.

[0065] However, when the thickness (t) is formed to be 2.5 mm, when a load of 175 kgf is applied to the center while both ends of the elastic plate (24) are supported by a support, the elastic plate (24) bends downwards in the center with respect to the both ends to form a radius of curvature of approximately 290 mm, and the angle formed by the both ends with respect to the center forms approximately 65°. In other words, the elastic plate (24) bends excessively, so although the bending characteristics are good, it cannot stably support the mat portion (22) and the restoring elasticity is low, which is not desirable.

[0066] In addition, when the thickness (t) is formed to be 3.5 mm, when a load of 175 kgf is applied to the center while both ends of the elastic plate (24) are supported by a support, the elastic plate (24) bends downwards in the center based on the both ends to form a curvature radius of approximately 320 mm, and the angle formed by the both ends based on the center forms approximately 75°. In other words, the elastic plate (24) has insufficient bending, so the bending characteristic is low. That is, when the thickness (t) of the elastic plate (24) is formed to be 3.5 mm, the rigidity is improved, so the supporting force for supporting the mat portion (22) is excellent, but the bending characteristic is low, making it difficult to apply to a motion bed device.

[0067] Therefore, it is preferable that the thickness (t) of the elastic plate (24) be 3.0 mm.

[0068] Thickness (t) Horizontal*Vertical Angle Load Curvature 2.5mm 2000*900 65° 175kgf 290mm 3.0mm 2000*900 70° 175kgf 309mm 3.5mm 2000*900 75° 175kgf 320mm

[0069]

[0070] As described above, the bed mattress (20) having the elastic plate (24) configured can return to its original state and maintain its shape even when an external force is applied, since the elastic plate (24) having restorative elasticity is provided on the bottom to support the mat portion (22). In particular, the mattress (20) formed in a rectangular shape may bend in the width direction, but the bending is much less than in the length direction. That is, since it is not desirable for the mattress (20) to bend in the width direction, in order for the mattress (20) to bend in the width direction, a load greater than the load applied to cause bending in the length direction must be applied so that the mattress bends, or a reinforcing member can be combined in the width direction to prevent or minimize the bending in the width direction. The reinforcing member may be composed of the same material as the elastic plate (24), but may also be composed of a metal material, a synthetic resin material, or wood, and may be composed in the form of a plate or a square pipe. In this embodiment, the role of the reinforcing member is replaced by a movable frame (34).

[0071] The mattress (20) configured in this manner has a restorative elasticity that causes bending within an allowable range when an external force is applied from the top or bottom in the longitudinal direction by the elastic plate (24), and returns to its original state when the external force is removed.

[0072] Meanwhile, the mat portion (22) and the elastic plate (24) are integrated by being wrapped by the cover member (26) so that the mat portion (22) and the elastic plate (24) are not exposed to the outside. The upper surface of the cover member (26), i.e., the area located on the upper surface of the mat portion (22), may be configured to be filled with sponge or cotton.

[0073] At this time, among the cover members (26), the area located on the bottom surface of the elastic plate (24) may be attached to the bottom surface of the elastic plate (24). Alternatively, the fabric material may be attached using an adhesive or the like while wrapping the elastic plate (24). This structure is intended to prevent external exposure of the elastic plate (24) and to prevent noise and damage upon contact with the roller (34B-2).

[0074] The motion operating unit (30) described above is coupled to the bottom surface of the elastic plate (24) of the mattress (20) and operates to bend the mattress (20) in various ways in the longitudinal direction so that the user can assume a comfortable posture by tilting the upper body and lifting the lower body to a predetermined height, or to raise the upper body of a patient with difficulty in moving, and then to flatten it back to its original state.

[0075] This motion operating part (30) is configured to include a frame (F) including a fixed frame (32) that is fixed to the ground or has a plurality of legs (32A) coupled to the bottom, a movable frame (34) each end of which is rotatably coupled to the fixed frame (32), as shown in FIGS. 1 to 5, and a driving part (360) provided on the fixed frame (32) for rotating the movable frames (34) on both sides at a set angle.

[0076] The fixed frame (32) constituting the frame (F) is composed of a pair of installation members (32B) arranged at a distance from each other and having the middle part of an elastic plate (24) joined to each middle part, and each connecting member (32C) formed with a shorter length than the installation members (32B) and connecting the ends and middle parts of each of the installation members (32B) on both sides.

[0077] A buffer member (32D) is provided on each end of the two-sided installation member (32B) or on the upper surface of each end of the connecting member (32C) connecting each end to cushion impact and prevent noise when in contact with the movable frame (34).

[0078] And, in the middle part of each installation member (32B), a housing (32E) having an internal space (S) of a height that accommodates the upper and lower body drive actuators (362, 366) of the drive unit (360) and the upper and lower body rotary plates (364, 368) in an erected state is provided so as to protrude upward. The housing (32E) is formed with a structure in which the downward and longitudinal ends are open and is coupled to the upper end of the installation member (32B) to form an internal space (S) in the upper part of the installation member (32B).

[0079] Among the aforementioned connecting members (32C), the connecting member (32C) located in the center connects the housings (32E) on both sides.

[0080] Meanwhile, the upper surfaces of the housings (32E) on both sides are respectively connected to the middle portions of the elastic plate (24) on both sides by bolts, rivets, etc. The middle region of the elastic plate (24) may also be connected to the upper surface of the connecting member (32C) located at the center.

[0081] On the bottom surface of the installation member (32B) on both sides, a plurality of fastening parts (32F) are provided. The fastening parts (32F) may be formed of screw holes or may be formed of fitting ends. In this embodiment, the fastening parts (32F) formed of screw holes will be described as a reference. A leg (32A) formed with a predetermined length can be selectively connected to this fastening part (32F). A bolt that is connected to the fastening part (32A) is provided in the leg (32A). The leg (32A) is used to raise the mattress (20) to a predetermined height by spacing the fixed frame (32) off the ground, and is detachably connected to the fastening part (32F), so that the user can select to install or remove it.

[0082] The movable frame (34) is rotatably connected to each installation member (32B) of the fixed frame (32) or each housing (32E) on both sides by an axis so that each end can rotate in different directions around the axis by a driving unit (360) to raise or raise the upper body support area (A1) of the mattress (20) at a predetermined angle or the leg support area at a predetermined angle.

[0083] The movable frame (34) includes an upper body support member (34A) that is connected to one end of each central portion of each of the two installation members (32B) or each end of the housing (32E) by a first axis (34A-1), and the other ends are connected to each other, and an upper body support area (A1) of an elastic plate (24) is connected to the upper surface, and rotates upward about the first axis (34A-1) to support the upper body support area (A1) obliquely when the driving unit (360) is operated. And, it includes a first lower body support member (34B) which is symmetrical with the upper body support member (34A) and each end is connected to the opposite side of the center of each of the two installation members (32B) or the other end of each housing (32E) by a second shaft (34B-1), and each other end is connected to each other and rotates upward about the second shaft (34B-1) to support the lower body support area (A3) of the elastic plate (24) upward when the driving unit (360) is operated. It includes a second lower body support member (34C) which is connected to each end of each of the two installation members (32B) by a third shaft (34C-1), and each other end is connected to each other by a connecting bar (34C-2), and is connected to the lower body support area (A3) of the elastic plate (24) to support the lower body support area (A3).

[0084] The other end of the first lower body support member (34B) is provided with a roller (34B-2) that is coupled to the lower body support area (A3) of the elastic plate (24) or that comes into contact with the bottom surface of the lower body support area (A3) of the elastic plate (24) when the driving unit (360) is operated to perform rolling motion. The rollers (34B-2) may be respectively provided at the other end of the first lower body support member (34B) or may be rotatably coupled to a connecting shaft connecting the other ends of the first lower body support members (34B) as illustrated in FIG. 1.

[0085] In this way, since the roller (34B-2) is provided on the other end of the first lower body support member (34B), the buttocks support area (A2) of the elastic plate (24) in which the buttocks support area (A2) is coupled to the installation members (32B) or housings (32E) on both sides and the lower body support area (A3) is coupled to the second lower body support member (34C) can smoothly perform an upward lifting operation between the buttocks support area (A2) and the lower body support area (A3) without interference or damage.

[0086] Meanwhile, at the other end of the second lower body support member (34C), when the second axis (34B-1) and the third axis (34C-1) form a step in the upper and lower directions based on the bottom surface of each installation member (32B) of the fixed frame (32), that is, when the second axis (34B-1) is higher than the third axis (34C-1), an extension portion (34C-3) having a height equal to the step is provided, and the extension portion (34C-3) is connected to the lower body support area (A3) of the elastic plate (24). In addition, the extension portions (34C-3) on both sides are connected to each other by the aforementioned connecting bar (34C-2).

[0087] In addition, the upper body support member (32A), the first lower body support member (34B), and the second lower body support member (34C) are formed in a “ㄷ” shape and are joined to the bottom surface of the elastic plate (24), so that the elastic plate (24) can be supported with sufficient rigidity so that the elastic plate (24) can be bent only in the longitudinal direction and can be prevented from being bent in the width direction.

[0088] As described above, the buttocks support area (A2) of the elastic plate (24) is coupled to the housings (32E) or installation members (32B) on both sides, and the ends of the lower body support areas (A3) are coupled to the connecting bars (34C-2) or extensions (34C-3). Accordingly, when the first lower body support member (34C) rotates upward, the lower body support area (A3) of the mattress (20) including the elastic plate (24) can be bent upward, and since the extensions (34C-3) on both sides are coupled to the lower body support area (A3) of the elastic plate (24), not only is the phenomenon of the elastic plate (24) being bent in the width direction prevented, but also the lower body support area (A3) is stably supported.

[0089]

[0090] The driving unit (360) is provided with two upper body driving actuators (362) and two lower body driving actuators (366) to rotate the upper body support member (34A) and the first lower body support member (34B) of the movable frame (34) upward about the first and second axes (34A-1, 34B-1) as the rotation center.

[0091] The driving unit (360) includes a pair of upper body driving actuators (362) each having a first driving screw rod (362A) and arranged on one side of the interior of each installation member (32B) or one side of the interior space (S) of the housing (32E). Each upper body rotary plate (364) is formed in a triangular or fan shape, one side of which is coupled to each end of the upper body support member (34A), and a central angle area (vertex area) of which is coupled to one end of the installation member (32B) or the housing (32E) by a first axis (34A-1), and on the opposite side of which is coupled a first rotary support block (364A) having a screw hole (364A-1) to which the first driving screw rod (362A) is fastened. A pair of lower body driving actuators (366) are provided, each of which is arranged in the opposite direction to the upper body driving actuators (362) in the interior of each installation member (32B) or the interior space of the housing (32E) by having a second driving screw rod (366A). Each lower body rotating plate (368) is formed in a triangular or fan shape, one side of which is coupled to each end of the first lower body support member (34B), and a central angle area (vertex area) of which is rotatably coupled to the installation member (32B) or the housing (33E) by a second axis (34B-1), and on the opposite side of which is coupled a second rotating support block (368A) having a screw hole (368A-1) to which the second driving screw rod (366A) is fastened.

[0092] In addition, the upper body drive actuator (362) and the lower body drive actuator (366) are axially coupled to the respective installation members (32B) or housings (32E) so as to rotate the upper body rotation plate (364) and the lower body rotation plate (368). In this way, since the upper body drive actuator (362) and the lower body drive actuator (366) are axially coupled to the respective installation members (32B) or housings (32E), the operation of pushing the first and second rotation support blocks (364A, 368A) to rotate the upper body rotation plate (364) and the lower body rotation plate (368) about the first and second axes (34A-1, 34B-1) can be smoothly performed without interference.

[0093] The aforementioned upper body turntable (364) and lower body turntable (368) are formed by a pair of fan-shaped plates.

[0094] And the first rotation support block (364A) described above is rotatably coupled to the opposite side of the upper body rotation plate (364) that maintains a predetermined distance from the first axis (34A-1), and the second rotation support block (368A) is also rotatably coupled to the opposite side of the lower body rotation plate (368) that maintains a predetermined distance from the second axis (34B-1). That is, the first rotation support block (364A) is rotatably fitted to the opposite side edge (a position away from the first axis) of each upper body rotation plate (364) that is integrated with both ends maintaining a distance from each other, and the second rotation support block (368A) is also rotatably fitted to the opposite side edge (a position away from the second axis) of each lower body rotation plate (368) that is integrated with both ends maintaining a distance from each other.

[0095] By this structure, the upper body driving actuator (362) and the lower body driving actuator (366) operate to rotate the first driving screw rod (362A) and the second driving screw rod (366A), and the first driving screw rod (362A) and the second driving screw rod (366A) push the first rotation support block (364A) and the second rotation support block (368A), thereby causing the upper body rotating plate (364) and the lower body rotating plate (368) to rotate around the first axis (34A-1) and the second axis (34B-1), respectively. Accordingly, the upper body support member (34A) and the first lower body support member (34B) combined with the upper body rotation plate (364) and the lower body rotation plate (368) can rotate within an angular range set as the rotation center about the first axis (34A-1) and the second axis (34B-1), respectively.

[0096] Meanwhile, the frame (F) and the motion operating part (30) configured as described above are not exposed to the outside by a cover (not shown) made of an elastic fabric material. That is, by installing a cover between the lower part of the mattress (20) and the fixed frame (32), not only is it possible to block foreign substances such as dust from entering between each part of the motion operating part (30), but also the motion operating part (30) that performs mechanical operation is not exposed to the outside. This cover may be equipped with a zipper. Therefore, the user can open the cover using the zipper and then service the motion operating part (30).

[0097]

[0098] The motion bed (10) according to the present invention configured as described above comprises a mattress (20) having an integral elastic plate (24) having rigidity and resilience, and a motion operating part (30) coupled to the elastic plate (24) to flex the mattress (20) in various ways, thereby eliminating the need to divide the mattress (20) into an upper body support part, a buttocks support part, a thigh support part, a calf support part, etc., and eliminating the component for coupling the motion operating part (30) and the mattress (20), allowing for a simple configuration.

[0099] In addition, since a thin elastic plate (24) is applied as a means for supporting the mat portion (22), the thickness of the mattress (20) does not have to be increased, thereby making it possible to make the mattress (20) slimmer, and since the elastic plate (24) applied to the mattress (20) has restorative elasticity that returns to its original state after being bent by an external force, the mattress (20) can be quickly restored to its original state when the motion driving unit (30) operates to return the bent mattress (20).

[0100]

[0101] Meanwhile, among the attached drawings, FIG. 6 is a front view showing a motion bed having a mattress with an elastic plate according to the second embodiment of the present invention.

[0102] A motion bed (10) having a mattress having an elastic plate according to a second embodiment is configured, as shown in FIG. 6, with a motion operating unit (30) including a first driving unit (130) including a first actuator (231), a first operating rod (132a), a first lifting rod (134), etc., a third driving unit (230) including a third actuator (232), a third operating rod (232a), a third lifting rod (234), and a second driving unit (140) including a second actuator (142), a second operating rod (142a), and a second lifting rod (144), and an elastic plate (24) is provided inside the mattress (20).

[0103] That is, the motion operating part (30) is provided with an elastic plate (24) on the mattress (20) of the motion bed (10) which is composed of a driving part including an actuator, an operating rod, an elevating rod, etc.

[0104] In this way, since the mattress (20) is provided with an elastic plate (24), the structure of the motion bed (10) can be configured to be remarkably simple since the mattress (20) does not need to be divided into individual parts.

[0105]

[0106] Also, among the attached drawings, FIG. 7 is a front view showing a motion bed having a mattress with an elastic plate according to the third embodiment of the present invention.

[0107] A motion bed (10) equipped with a mattress having an elastic plate according to the second embodiment is configured such that the motion operating part (30) is composed of an upper body actuator (70) and a lower body actuator (40), and an elastic plate (24) is provided inside the mattress (20), as shown in FIG. 7.

[0108] In this way, since the mattress (20) is provided with an elastic plate (24), the structure of the motion bed (10) can be configured to be remarkably simple since the mattress (20) does not need to be divided into individual parts.

[0109] A motion bed having a mattress with an elastic plate according to the present invention comprises a mattress comprising a mattress portion, an elastic plate having restorative elasticity that is bent by an external force and returns to its original state, a motion operating portion comprising a frame coupled to the elastic plate, and a driving portion provided on the frame for raising or bending the mattress at a set angle. Since the elastic plate is provided on the bottom surface of the mattress, the mattress can be firmly coupled to the motion operating portion with a simple structure, and since the mattress is not segmented by the elastic plate, the mattress can be bent in a smooth curve when the motion operating portion is operated, thereby providing comfort to the user. Therefore, the motion bed having a mattress with an elastic plate according to the present invention can provide a comfortable rest to the user, and since the structure is simple and economical, it is an invention with industrial applicability.

Claims

1. A mattress comprising a mat portion and an integral elastic plate having a thickness of 2.5 to 3.5 mm and a size corresponding to the shape of the bottom surface of the mat portion so as to have resilience to bend and return to its original state due to external force, and arranged on the bottom surface of the mat portion to maintain and support the shape of the mat portion; and It includes a motion operating unit comprising a frame that is fixed on the ground or has a plurality of legs connected to the bottom and connected to the elastic plate, and a driving unit provided on the frame to raise or bend the mattress at a set angle. Characterized in that the frame is configured to bend the mattress or return it to a flat original state by the operation of the driving unit. Motion bed with a mattress having an elastic plate.

2. In paragraph 1, The above elastic plate, It is characterized by being made of one or more plates selected from among metal plates, synthetic resin plates, FRP (Fiberglass Reinforced Plastic), graphite plates, and fiberglass plates. Motion bed with a mattress having an elastic plate.

3. In paragraph 1, The above elastic plate, It is characterized by being composed of at least one plate selected from among metal plate, synthetic resin plate, FRP (Fiberglass Reinforced Plastic), graphite plate, or fiberglass plate covered or attached with rubber material, silicone material, synthetic resin material, or fabric material. Motion bed with a mattress having an elastic plate.

4. In paragraph 2 or 3, If the above elastic plate is made of fiberglass plate, The above fiberglass plate, Polyolefin resin as a thermoplastic resin; Glass fibers composed of continuous and discontinuous fibers; and characterized in that it comprises at least one additive selected from the group consisting of antioxidants, heat stabilizers, dispersants, compatibilizers, pigments and combinations thereof. Motion bed with a mattress having an elastic plate.

5. In paragraph 1, The above frame is, A fixed frame comprising a pair of installation members arranged at a distance from each other and having both middle parts of the elastic plate joined at each middle part, and each connecting member formed with a shorter length than the installation members and connecting each end and middle part of the installation members; It is characterized in that each end is axially connected to each of the above-mentioned installation members on both sides and is formed of a movable frame that is connected to the bottom surfaces on both sides of the elastic plate, respectively. Motion bed with a mattress having an elastic plate.

6. In paragraph 5, The above movable frame is, An upper body support member having one end connected to one side of each of the central portions of the above-mentioned installation members on both sides by a first axis, each end connected to each other, and having an upper body support area of ​​the above-mentioned elastic plate connected to the upper surface, and rotating upward around the first axis to support the upper body support area obliquely when the driving unit operates; and It is characterized in that it includes a first lower body support member that is connected to the opposite side of the central portion of each of the two installation members by a second axis so as to be symmetrical with the upper body support member, and each other end is connected to each other, and rotates upward around the second axis so as to support the lower body support area of ​​the elastic plate upward when the driving unit is operated. Motion bed with a mattress having an elastic plate.

7. In paragraph 6, At the other end of the first lower body support member, It is characterized in that a roller is provided for rolling motion by being combined with the lower body support area of ​​the elastic plate or by coming into contact with the lower surface of the lower body support area when the driving unit is operated. Motion bed with a mattress having an elastic plate.

8. In paragraph 6, The above movable frame is, Each end is connected to each end of the above-mentioned installation members on both sides by a third axis, and each other end is connected to each other by a connecting bar, and further includes a second lower body support member for supporting the lower body support area. Motion bed with a mattress having an elastic plate.

9. In paragraph 8, At the other end of the second lower body support member, When the second and third axes form a step in the upper and lower directions based on the bottom surface of the fixed frame, an extension part having a height equal to the step is provided, and the extension part is characterized in that it is connected to the lower body support area. Motion bed with a mattress having an elastic plate.

10. In paragraph 6, The above driving part, It is characterized in that it is composed of an actuator which is arranged to face in opposite directions to the middle part of the above-mentioned installation member or the above-mentioned connecting member, each end of which is axially connected, and each other end of which is axially connected to the above-mentioned upper body support member and the above-mentioned lower body support member. Motion bed with a mattress having an elastic plate.

11. In paragraph 6, The above driving part, A pair of upper body driving actuators each having a first driving screw rod and each being positioned on one side of the inside of each of the above-mentioned installation members; Each upper body rotating plate is formed in a triangular or fan shape, one side of which is connected to each end of the upper body support member, a central angle area of ​​which is connected to the installation member by the first axis, and a first rotating support block having a screw hole to which the first driving screw rod is connected is connected to the opposite side; A pair of lower body driving actuators each having a second driving screw rod and arranged in the opposite direction to the upper body driving actuator inside each of the above-mentioned installation members; and Each lower body rotation plate is formed in a triangular or fan shape, one side of which is connected to each end of the first lower body support member, a central angle area of ​​which is connected to the installation member by the second axis, and a second rotation support block having a screw hole to which the second driving screw rod is connected is connected to the opposite side. When the above upper body driving actuator is driven, as the first driving screw rod rotates, the upper body rotating plate coupled to the first rotating support block rotates around the first axis to rotate the upper body support member upward. As the second driving screw rod of the lower body driving actuator rotates, the lower body rotating plate coupled to the second rotating support block rotates around the second axis to rotate the first lower body supporting member upward. Motion bed with a mattress having an elastic plate.

12. In paragraph 11, The above upper body driving actuator and the above lower body driving actuator, Characterized in that the upper body rotation plate and the lower body rotation plate are axially coupled to each of the installation members so as to be linked to the rotation operation. Motion bed with a mattress having an elastic plate.

13. In paragraph 11, In the middle part of the above installation member, The upper and lower body drive actuators are installed and erected, and the housings are each provided so as to protrude upward, each having an internal space of a height that accommodates the upper and lower body rotary plates. Motion bed with a mattress having an elastic plate.

14. In paragraph 6, On the bottom of the above installation member, A plurality of fastening parts are provided, and the legs formed to a predetermined length are selectively connected to the fastening parts. Motion bed with a mattress having an elastic plate.

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