JP6419510B2 - Mattress equipment - Google Patents

Description

  The present invention relates to a mattress device used for a bed having a back raising mechanism.

  The mattress used for the mattress device includes a stationary type and a pressure switching type. Static types include urethane mattresses and air mattresses that maintain a constant air pressure. The pressure switching type is an air mattress that adjusts the air pressure. There is a problem that the stationary type and only the urethane mat are liable to be sluggish after many years of use.

  7 and 8 show a mattress device 61 used for a bed 56 having a back raising mechanism 55 disclosed in Patent Document 1. FIG. 7, the mattress device 61 includes a plurality of foam mattresses including an upper first layer 62, a lower second layer 63, and a lower third layer 64, and the first layer 62 to the third layer 64 are provided. In this structure, sheet-like sliding members 65 and 66 are interposed between the layers. The person 67 lies on the mattress device 61 placed on the bed 56 in a state where the back raising mechanism 55 is horizontal as indicated by a virtual line in FIG. In this state, when the back raising mechanism 55 rises from the position shown in phantom in FIG. 8 to the position shown by the solid line, the first layer 62, the second layer 63, and the third layer 64 shown in FIG. Due to the slippage of 65 and 66, the pressure is not given to the buttocks and back of the lying person 67 shown in FIG.

  However, since the mattress device 61 has the structure in which the sliding members 65 and 66 are interposed between the first layer 62 to the third layer 64, the sliding member 65 and 66 can be operated even if the operation of the back raising mechanism is repeated. There is a disadvantage that a structure for holding 66 between the layers is required.

JP 2013-215620 A

  The present invention has been made in view of the above-described background art, and an object of the present invention is to have a simple structure for reducing the displacement force when raising the back, less sag, and improved body pressure dispersibility.

  The present invention is a mattress device composed of a plurality of layers, wherein the upper first layer is provided with a plurality of outer slit portions and inner slit portions, and the outer slit portions are both side portions of the first layer in the short direction. The inner slit portion is provided between a pair of straight lines extending in the longitudinal direction from the outer slit portion located on both lateral sides of the first layer, and the second layer below the first layer is disposed above the second layer. An open mat storage chamber is provided, and an air mattress including a plurality of air cells is stored in the mat storage chamber.

  The present invention is a combination of a first layer having a plurality of outer slit portions and an inner slit portion and a plurality of air cells by an air mattress, and has a simple structure that reduces the shifting force when raising the back. The problem can be solved and high body pressure dispersibility can be realized. In the present invention, if there are a plurality of inner slit portions divided in the longitudinal direction of the first layer, the range divided by the inner slit portion of the first layer is widened, and the person lying in the longitudinal direction on the mattress device Can be reduced. In the present invention, if the inner slit portion or the outer slit portion penetrates the upper and lower sides of the first layer, the inner slit portion or the outer slit portion expands and is divided by the inner slit portion of the first layer. There are many deformations of the range, and the sliding reduces the pressure on the person lying down. In the present invention, if a control box serving as a pump unit and a control unit is housed in a box housing chamber opened upward so as to avoid the mat housing chamber in the second layer, the person lying in the longitudinal direction of the mattress device The foot side can be utilized. In the present invention, if the light of the lit display lamp part of the control box housed in the box housing chamber is guided to the outer surface side of the second layer by the display hole provided in the second layer, the control box body The normality and abnormality of the air cell determined in step can be easily confirmed.

The perspective view which decomposes | disassembles and shows the mattress apparatus based on Embodiment 1 for implementing invention. The perspective view which decomposes | disassembles and shows the 2nd layer which concerns on the form 1 for implementing invention. The perspective view which shows the external appearance of the mattress apparatus based on Embodiment 1 for inventing. The schematic diagram equivalent to the side view explaining the effect | action of the mattress apparatus which concerns on Embodiment 1 for inventing. The schematic diagram equivalent to the side view explaining the effect | action of the mattress apparatus which concerns on Embodiment 1 for inventing. The perspective view which shows the external appearance of the mattress apparatus which concerns on the form 2 for implementing invention. The schematic diagram equivalent to the side view explaining the effect | action of the conventional mattress apparatus. The schematic diagram equivalent to the side view explaining the effect | action of the conventional mattress apparatus.

  With reference to FIG. 1, the structure of a mattress device 1 composed of a plurality of layers according to Embodiment 1 for carrying out the invention will be described. In FIG. 1, the mattress device 1 includes a first layer 2, a second layer 3, an air mattress 4, a control box 5, and an exterior body not shown. The first layer 2 is disposed at the upper part of the mattress device 1 on the side of the person lying in the longitudinal direction 6 and is made of a foam mattress made of nonwoven fabric or urethane foam or the like that is entangled without woven fibers and formed into a sheet shape. Composed.

  The first layer 2 is provided with a plurality of outer slit portions 8 and a plurality of inner slit portions 9. The outer slit portions 8 are provided separately in the longitudinal direction 6 on both sides in the short direction 7 of the first layer 2. The outer slit portion 8 is configured as a vertically elongated slit that is long in the longitudinal direction 6. For example, the outer slit portion 8 is configured by a cut or through hole penetrating in the vertical direction 10, or is formed by a cut or concave portion in which the upper portion or the inside of the first layer 2 is left. However, the direction in which the outer slit portion 8 spreads is more configured by a cut or through hole penetrating in the vertical direction 10 than when the upper portion or the inside of the first layer 2 is formed by a cut or recess. It becomes large, the effect which suppresses the hammock phenomenon of the 1st layer 2 improves, and body pressure dispersibility improves. The inner slit portions 9 are provided separately in the longitudinal direction 6 between the outer slit portions 8 located on both sides in the short direction 7 of the first layer 2. The inner slit portion 9 is configured as a horizontally elongated slit that is long in the short direction 7. For example, the inner slit portion 9 is configured by a cut or through hole penetrating in the vertical direction 10, or is formed by a cut or concave portion in which the upper portion or the inside of the first layer 2 is left. However, the direction in which the inner slit portion 9 spreads is more formed by the cut or through hole penetrating in the vertical direction 10 than when the upper portion or the inside of the first layer 2 is formed by the cut or concave portion left. It becomes large, the effect which suppresses the hammock phenomenon of the 1st layer 2 improves, and body pressure dispersibility improves. If one or more inner slit portions 9 are provided, the effect is reduced as compared with the configuration in which a plurality of inner slit portions 9 are provided, but it is applicable as the first layer 2 in the form for carrying out the invention. is there.

  In the first layer 2, an aspect in which the first region 2 is divided into three regions of the head region 11, the central region 12, and the foot region 13 from the one end portion in the longitudinal direction 6 to the other end portion will be described. One end portion in the longitudinal direction 6 is the head side of a person lying in the longitudinal direction 6 of the mattress device 1, and the other end portion in the longitudinal direction 6 is the foot side of a person lying in the longitudinal direction 6 of the mattress device 1. .

  The head region 11 is in a range from one end portion of the first layer 2 in the longitudinal direction 6 to 1/7 of the total length of the first layer 2 in the longitudinal direction 6. The central region 12 is in the range of 1/2 of the total length in the longitudinal direction 6 of the first layer 2 from the head region 11. The foot region 13 extends from the central region 12 to the other end portion in the longitudinal direction 6 of the first layer 2. Further, a center line 14 indicated by a one-dot chain line at the center position in the short direction 7 of the first layer 2, inside the short direction 7 by 1/7 of the total length in the short direction 7 from both ends of the short direction 7. Straight lines 15 and 16 indicated by imaginary lines are shown at the respective positions. The straight lines 15 and 16 are a pair of straight lines extending in the longitudinal direction from the outer slit portions 8 located on both sides of the first layer 2 in the short direction 7.

  The outer slit portion 8 will be described in detail. The outer slit portion 8 has a configuration in which two outer slit portions 8 are provided separately in the longitudinal direction 6 on the straight lines 15 and 16 corresponding to the central region 12 of the first layer 2. The length of each outer slit portion 8 in the longitudinal direction 6 is 1/5 of the total length of the first layer 2 in the lateral direction 7. When the first layer 2 is stacked on the second layer 3, the outer slit portion 8 is not covered on the side layers 37 and 38 of the second layer 3 but on the mat accommodating chamber 21. The outer slit portion 8 is provided in the first layer 2. With this configuration, when the person lying on the mattress device 1 lies down, the outer slit portion 8 spreads in the short direction 7 when a load is applied to the buttocks or the shoulder portion when hitting the roll. Only a portion affected by a load, such as a buttock when a person lying on 1 lies down or a shoulder when laying down, can sink, and the hammock phenomenon of the first layer 2 is suppressed, and the body of the mattress device 1 Pressure dispersibility is improved. As the outer slit portion 8, a linear shape, a meandering or bending curve shape, or the like can be applied.

  The inner slit portion 9 will be described in detail. The inner slit portion 9 is provided between a pair of straight lines 15 and 16 extending in the longitudinal direction from the outer slit portion 8 located on both sides in the short direction 7 of the first layer 2. Specifically, the inner slit portion 9 has a configuration in which eight slits are provided in the central region 12 of the first layer 2 at equal intervals in the longitudinal direction 6 and across the center line 14. The length of each inner slit portion 9 in the short direction 7 is ½ to 2/3 of the total length of the first layer 2 in the short direction 7. The 2nd layer 3 is a layer arrange | positioned under the 1st layer 2, and is comprised by the foam mattress which consists of urethane foam. The four inner slits 9 on the head side are arranged corresponding to the two outer slits 8 facing the short side direction 7 on the head side, and the four inner slits 9 on the foot side are arranged on the foot side. It is the structure arrange | positioned corresponding to the two outer side slit parts 8 which oppose the transversal direction 7 on the part side. That is, the two outer slit portions 8 facing the short direction 7 on the head side and the head side ends of the two outer slit portions 8 facing the short direction 7 on the head side are the short direction 7. The region surrounded by the straight line connecting to the short side direction 7 on the head side and the straight line connecting the leg side ends of the two outer slits 8 facing the short side direction 7 on the head side has 4 on the head side. The inner slit portion 9 of the book is arranged. Also, the head-side ends of the two outer slit portions 8 facing the short direction 7 on the foot side and the two outer slit portions 8 facing the short direction 7 on the foot side are the short direction 7. 4 on the foot side in a region surrounded by a straight line connecting to the short side direction 7 on the foot side and a straight line connecting the foot side ends of the two outer slits 8 facing the short side direction 7 The inner slit portion 9 is arranged. As the inner slit portion 9, a linear shape, a meandering or curved shape, etc. are applicable.

  The second layer 3 is provided with a mat storage chamber 21, a box storage chamber 22, grooves 23 and 24, and a display hole 25. The mat accommodating chamber 21 is shaped to be recessed from the upper surface of the second layer 3 so as to accommodate the air mattress 4, and corresponds to the head or calf portion of a person lying in the longitudinal direction 6 on the mattress device 1. In addition, the second layer 3 is configured as a concave portion having a rectangular shape in a plan view opened upward at the central portion in the short direction 7. The shape of the mat storage chamber 21 in a plan view is a rectangle in which the dimension in the longitudinal direction 6 is larger than the dimension in the lateral direction 7 and is a vertically long rectangle. The mat storage chamber 21 is configured to open to the one end side in the longitudinal direction 6 of the second layer 3.

  The box accommodating chamber 22 is shaped to be recessed from the upper surface of the second layer 3 so as to accommodate the control box 5, and corresponds to the foot of a person lying in the longitudinal direction 6 on the mattress device 1, In the center of the second layer 3 in the short direction 7, it is opened upward avoiding the mat accommodation chamber 21, and is configured as a rectangular recess in plan view. The shape of the box accommodating chamber 22 in plan view is a rectangle whose dimension in the longitudinal direction 6 is smaller than the dimension in the lateral direction 7 and is a horizontally long rectangle.

  The groove portions 23 and 24 are shaped to be recessed from the upper surface of the second layer 3 so as to accommodate the air hose 32 and the power supply line 33. The air hose 32 is configured to connect the air mattress 4 and the control box 5. The power line 33 has a configuration in which a plug portion 34 is provided at an end extending from the control box 5. The groove portion 23 is configured to open to the mat accommodating chamber 21 and the other end side of the second layer 3 and the upper side while avoiding the box accommodating chamber 22. The groove portion 24 is configured to open to the box housing chamber 22 and the groove portion 23 and upward.

  The air mattress 4 will be described in detail. The air mattress 4 includes a plurality of hollow inflatable air cells 27 made of a material that does not leak air, which are horizontally long in the short direction 7 of the air mattress 4 and arranged in parallel in the long direction 6 of the air mattress 4. It is a modeled body pressure dispersion performance. Each air cell 27 is formed into a hollow shape that is long in the short direction 7 of the air mattress 4. The air cells 27 are arranged in parallel in the longitudinal direction 6 of the air mattress 4 and connected to each other so as to allow air to pass through.

  When the air mattress 4 is accommodated in the mat accommodating chamber 21 from above the second layer 3, the mat accommodating chamber 21 prevents the plurality of air cells 27 from being arranged in parallel in the longitudinal direction 6 and moving in the short direction 7. It is the structure which contacts the part of the 2nd layer 3 which comprises the part of the 2nd layer 3 which comprises the inner wall face of the transversal direction 7, and the inner wall face of the side of the box storage room 22 of the mat | matte storage room 21. Further, in order to fix the air cell 27, a small hole is provided in the base layer 36 in the mat accommodating chamber 21 portion, and the air cell 27 and the base layer 36 are fixed by a separate member.

  The control box 5 will be described in detail. The control box 5 has a configuration in which a pump unit 29, a control unit 30, and an indicator lamp unit 31 are accommodated. The pump unit 29 is configured to supply the air mattress 4 as compressed air obtained by compressing the sucked outside air by the electric power output from the pump drive circuit unit in the control unit 30. The exhaust port portion of the pump unit 29 and the air supply port portion of the air mattress 4 are connected to each other by a flexible air hose 32 made of synthetic resin.

  The control unit 30 is connected to a power line 33 having a plug unit 34. The plug part 34 is connected to the outlet part of the commercial power supply part in the room, and the AC power supplied from the power line 33 is supplied to the control part 30 by the artificial ON operation of the power switch part. Power is supplied to the pump unit 29, and AC power supplied from the control unit 30 to a conversion unit (not shown) is converted into DC power and supplied to the indicator lamp unit 31. That is, the pump unit 29 is configured to be driven with AC power based on the control of the control unit 30, and the indicator lamp unit 31 is configured to be lit with DC power based on the control of the control unit 30.

  The control unit 30 detects the air pressure supplied from the pump unit 29 to the air mattress 4 (hereinafter, the detected air pressure is referred to as a detected air pressure), and the detected air pressure is stored in the storage unit of the control unit 30 in a non-rewritable manner in advance. When the maximum value is reached, the power supply to the pump unit 29 is stopped, and then the detected air pressure decreases from the maximum value and reaches the restart value stored in the storage unit of the control unit 30 in a non-rewritable state in advance. The power supply to the pump unit 29 is resumed. That is, the air mattress 4 according to the first embodiment for carrying out the invention is stored in the storage unit of the control unit 30 in a non-rewritable state in advance and stored in the storage unit of the control unit 30 in a non-rewritable state in advance. It is a static type that keeps the air pressure constant between the restart value.

  With the configuration of the control unit 30, compressed air is supplied to the air mattress 4 so that the air pressure is in the range between the restart value and the maximum value, and the air pressure is appropriately set according to the size of the air cell 27. .

  Further, the control unit 30 supplies direct current to the normal lighting circuit unit of the display circuit unit with respect to the indicator lamp unit 31 during the control of the pump unit 29 so as to drive at a specified value as a range between the maximum value and the restart value. It is the structure to do. With the configuration of the control unit 30, an indicator lamp such as an LED that emits green light of the indicator lamp unit 31 is turned on.

  Further, during the control of the pump unit 29 so that the control unit 30 is driven in the range between the maximum value and the restart value, for example, the air hose 32 is disconnected or the air cell 27 is damaged, so that the air is discharged from the pump unit 29. Since the compressed air is not properly supplied to the mattress 4, when the detected air pressure falls below a specified value, an abnormality is notified.

Due to the configuration for notifying the abnormality of the control unit 30, the indicator lamp such as the LED of the indicator lamp unit 31 is lit so as to emit red light. The mode in which the indicator lamp 31 is lit is a configuration that can be seen by a person from the outside of the control box 5. The light of the indicator lamp portion 31 that is turned on in the control box 5 housed in the box housing chamber 22 is configured to be guided to the outside from the display hole portion 25 of the second layer 3.

  The case where the mattress device 1 is assembled from the first layer 2, the second layer 3, the air mattress 4 and the control box 5 will be described. An air mattress 4 is accommodated in the mat accommodating chamber 21, a control box 5 is accommodated in the box accommodating chamber 22, an air hose 32 and a power line 33 are accommodated in the grooves 23 and 24, and a plug portion of the power line 33 is accommodated. 34 is disposed outside the groove 23 from the other end side of the second layer 3, and the indicator lamp 31 is disposed corresponding to the display hole 25. In addition, it is the simple aspect by which the air hose 32 and the power wire 33 are arrange | positioned in the groove parts 23 and 24. FIG.

  And it arrange | positions at plate shape so that the 1st layer 2 may be covered on the 2nd layer 3, and the opening above the air mattress 4, the control box 5, the air hose 32, the power wire 33, and the mat storage chamber 21 The mattress device 1 covers the opening above the box housing chamber 22, the opening above the grooves 23 and 24, the upper surface portions of the side layers 37 and 38, and the upper surface portion of the foot layer 39. Composed.

  The base layer 36, the side layers 37 and 38, the foot layer 39, the lower box storage chamber 40, and the upper box storage chamber 41 in FIG. 1 will be described with reference to FIG.

  With reference to FIG. 2, the structure of the 2nd layer 3 which concerns on the form 1 for inventing is demonstrated. The second layer 3 includes a base layer 36, side layers 37 and 38, and a foot layer 39, and the side layers 37 and 38 are individually provided on both sides of the base layer 36 located in the short direction 7. The foot layer 39 is disposed on the other end portion in the longitudinal direction 6 of the base layer 36 between the side layers 37 and 38.

  The base layer 36 is configured in a rectangular plate shape that is vertically long in plan view, with the dimension in the longitudinal direction 6 longer than the dimension in the short direction 7. A display hole 25 and a lower box housing chamber 40 are formed at the other end of the base layer 36. The display hole 25 is a rectangular shape that is vertically long in plan view and penetrates the upper and lower sides and the other end side. The lower box housing chamber 40 is configured to penetrate vertically in a horizontally long rectangle in plan view.

  The side layers 37 and 38 are configured in a rectangular plate shape that is vertically long in plan view, with the dimension in the longitudinal direction 6 longer than the dimension in the short direction 7. The foot layer 39 is configured in a rectangular plate shape that is horizontally long in a plan view in which the dimension in the longitudinal direction 6 is shorter than the dimension in the lateral direction 7. The dimensions of the foot layer 39 in the short direction 7 are the side layers 37 and 38 disposed on one end portion in the short direction 7 of the base layer 36 and the other end portion of the base layer 36 in the short direction 7. It is a structure smaller than the dimension of the transversal direction 7 between the side layer 38 arrange | positioned on the top. The difference between the dimension in the short direction 7 of the foot layer 39 and the dimension in the short direction 7 between the side layers 37 and 38 is the dimension in the short direction 7 of the groove 23 shown in FIG. is there.

  Returning to FIG. 2, the foot layer 39 is formed with the groove 24 and the upper box accommodating chamber 41. The groove portion 24 is a rectangular shape that is horizontally long in a plan view and penetrates the upper and lower box housing chambers 41 and one end portion side in the short direction 7. The upper box housing chamber 41 is configured to penetrate vertically in a horizontally long rectangle in plan view.

  A method of assembling the second layer 3 according to the first embodiment for carrying out the invention will be described. Side layers 37, 38 are individually arranged on both sides of the base layer 36 in the short direction 7, and one side surface of the side layer 37 in the short direction 7 and the base layer as indicated by a dashed line 42. 36, one side surface of the lateral direction 7 coincides with the up-down direction 10, and the other side surface of the lateral direction 7 of the side layer 38 and the other side surface of the lateral layer 7 of the lateral layer 36 as shown by a one-dot chain edge 43. And the base layer 36 and the side layers 37 and 38 are fixed to each other with an adhesive so that they coincide with each other in the vertical direction 10. The fixing between the base layer 36 and the side layers 37 and 38 can also be applied to other configurations that do not use an adhesive, such as fitting between a concave portion and a convex portion, or a fixture.

  Further, the foot layer 39 is disposed on the base layer 36 as shown by a one-dot chain line 44 in FIG. 2 so that the groove 23 shown in FIG. 1 is formed between the side layers 37 and 38, and the lower box. The base layer 36 and the foot layer 39 are fixed to each other with an adhesive so that the storage chamber 40 and the upper box storage chamber 41 overlap each other to form the box storage chamber 22 shown in FIG. As described above, the second layer 3 is configured as shown in FIG. The fixing of the base layer 36 and the foot layer 39 can also be applied to other configurations that do not use an adhesive, such as fitting between a concave portion and a convex portion, or a fixture.

  With reference to FIG. 3, the mattress device 1 according to the first embodiment for carrying out the invention will be described. When the mattress device 1 is wrapped in a bag-like exterior body (not shown), the power line 33 and The plug part 34 is the aspect arrange | positioned outside the exterior body. The exterior body has a configuration in which an opening that can be opened and closed is partly sewn in a bag shape of a size that encloses the mattress device 1. Therefore, after the mattress device 1 is accommodated in the exterior body from the opening portion where the exterior body is opened, the opening portion of the exterior body is closed, so that the mattress device 1 is wrapped with the exterior body.

  A window portion covered with a mesh member is directed to a portion of the exterior body corresponding to the opening of the side end face of the display hole portion 25 of the mattress device 1, and light lit by the indicator lamp portion 31 passes through the mesh member. It is the structure which can be confirmed by the person from the outside.

  With reference to FIG.4 and FIG.5, the effect | action of the mattress apparatus 1 is demonstrated. In FIG.4 and FIG.5, the exterior body is abbreviate | omitted. In the following description, refer to FIG. 1 for the control box 5, the outer slit portion 8, the inner slit portion 9, the pump portion 29, the control portion 30, the indicator lamp portion 31, the power line 33, and the plug portion 34. 4 and 5, illustration of the side layer 38 of the mattress device 1 shown in FIG. 3 is omitted.

  First, in FIG. 4, a bed 46 used in the mattress device 1 has a configuration in which a fixed frame 47 is provided with a back raising mechanism 48. Then, the mattress device 1 is placed on the bed 46 so that the second layer 3 is on the lower side in the aspect in which the legs 49 of the fixed frame 47 are placed on the floor 50 and the back raising mechanism 48 is horizontal. Installed.

  Then, the plug part 34 of the mattress device 1 is inserted into the outlet part of the commercial power supply part (not shown) in the room, and the power switch part of the control box 5 is turned on by human operation, and the pump part 29 and the control part are controlled. When the unit 30 is operated, the indicator light unit 31 emits green indicating a normal operating state, the plurality of air cells 27 of the air mattress 4 are expanded, and the pressure inside the air cell 27 reaches the maximum value, the pump unit The operation of 29 stops.

  In the mode in which the indicator lamp 31 emits green light as described above and the pressure inside the air cell 27 reaches the maximum value, as shown in FIG. 4, the person 51 lies on the mattress device 1, and the person 51 The head is placed on the head region 11 of the first layer 2, the portion from the back to the thigh of the person 51 is placed on the central region 12 of the first layer 2, and the lower limb of the person 51 is It is placed on the two-foot area 13. When the person 51 lies on the mattress device 1 as described above, a load is applied to the mattress device 1.

  For example, although not shown in the drawings, a mattress device having a structure in which a plurality of foam mattresses in which the outer slit portion 8 and the inner slit portion 9 are not provided on the conventional first layer 2 is laminated with layers having different hardnesses. Because it was laminated, the load-related part such as the buttocks when the person lying on the mattress device lay down and the shoulder when turning over could not sink, and the body pressure dispersibility It was getting worse.

  On the other hand, as shown in FIG. 3, in the mattress device 1 according to the first embodiment for carrying out the invention, the first layer 2 is provided with the outer slit portion 8 and the inner slit portion 9. Therefore, when a load is applied to the buttocks when the person lying on the mattress device 1 lies down or the shoulder when turning over, the outer slit portion 8 spreads in the short direction 7 and the inner slit portion 9 extends in the longitudinal direction. 6, only the portion related to the load such as the buttocks when the person lying on the mattress device 1 lies down or the shoulder when turning over can be depressed, and the first layer 2 is entirely In addition, the body weight is not excessively tensioned, the hammock phenomenon of the first layer 2 is suppressed, and the body pressure dispersibility is improved.

  Further, since the outer slit portion 8 spreads in the short direction 7, the first layer 2 is suppressed so as not to shift to the central portion as a whole, and both side portions outside the outer slit portion 8 do not jump up. To be suppressed. That is, even if the first layer 2 is subjected to a load such as a buttock or a shoulder as described above, the range partitioned by the outer slit portion 8 and the inner slit portion 9 partially sinks, so that the first layer Since 2 is not pulled as a whole, the hammock phenomenon hardly occurs and the body pressure dispersibility is improved.

  Further, as shown in FIG. 5 from the state shown in FIG. 4, the first layer 2 is placed on the air mattress 4 in the process in which the back raising mechanism 48 rises from the position indicated by the phantom line in FIG. As shown by an arrow 52, it does not give a feeling of pressure to the buttocks and back of the person 51 who slides upward and lies. The first layer 2 of the back raising mechanism 48 slides upward as the air mattress 4 rises because the plurality of air cells 27 are formed in a hollow cylindrical shape. This is because the contact area between the air mattress 2 and the air mattress 4 is reduced and is slippery.

A mattress device 1 according to a second embodiment for carrying out the invention will be described with reference to FIG. The mattress device 1 according to the second embodiment for carrying out the invention shown in FIG. 6 is in a state in which an unillustrated exterior body is removed. The head side of the first layer 2 is used as the foot side and the foot side of the first layer 2 is used as the head side so that the head side and the foot side can be used interchangeably. The slit portion 8 and the inner slit portion 9 are provided in the first layer 2 separately from the head side and the foot side with the center line 17 in the longitudinal direction 6 of the first layer 2 as a boundary. As in the first embodiment for carrying out the invention, the inner slit portion 9 is formed between a pair of straight lines 15 and 16 extending in the longitudinal direction from the outer slit portion 8 located on both sides in the short direction 7 of the first layer 2. Is provided. Specifically, the inner slit portion 9 has a head side in which the outer slit portion 8 exists on both sides in the short direction 7, a foot side in which the outer slit portion 8 exists in both sides in the short direction 7, and a short side. It is divided into sections on the side of the center line 17 where the outer slit portion 8 does not exist on both sides in the hand direction 7. Further, when the first layer 2 is folded in two around the center line 17, the outer slit portion 8 disposed on the head side from the center line 17 and the inner slit portion 9 and the foot line side from the center line 17. The outer slit portion 8 and the inner slit portion 9 that are arranged are in a target shape so as to overlap each other. Further, the inner slit portion 9 is configured as an oblique long slit that is long in an oblique direction. For example, as shown in FIG. 6, two slanted slits do not intersect with each other and the T-shape is elongated in different oblique directions, and two slanted slits not shown intersect with each other. It is conceivable to configure it as an X-shape, a single slanted slit not shown in the figure. As the slanted slit forming the inner slit portion 9 shown in FIG. 6, a linear shape, a meandering or curved shape, etc. can be applied. Further, the inner slit portion 9 is configured by a cut or through hole penetrating in the vertical direction 10, or is formed by a cut or concave portion in which the upper portion or the inside of the first layer 2 is left. However, the direction in which the inner slit portion 9 spreads is more formed by the cut or through hole penetrating in the vertical direction 10 than when the upper portion or the inside of the first layer 2 is formed by the cut or concave portion left. It becomes large, the effect which suppresses the hammock phenomenon of the 1st layer 2 improves, and body pressure dispersibility improves. If one or more inner slit portions 9 are provided, the effect is reduced as compared with the configuration in which a plurality of inner slit portions 9 are provided, but it is applicable as the first layer 2 in the form for carrying out the invention. is there.

  A plurality of bending guide portions 57 are provided separately in the longitudinal direction 6 on the lower surface portion (bed side surface portion) of the base layer 36 of the second layer 3 shown in FIG. The bending guiding portion 57 is configured as a recess that opens to the lower surface portion of the base layer 36 and both side portions in the lateral direction 7 and is recessed from the lower surface portion of the base layer 36 to the inside. Thus, in the mattress device 1 according to the second embodiment for carrying out the invention, the mattress device 1 is shown in FIG. 4 by the configuration in which the plurality of bending guide portions 57 are provided on the lower surface portion of the base layer 36. As the back raising mechanism 48 rises from the position indicated by the phantom line in FIG. 5 to the position indicated by the solid line when mounted on the bed 46 as described above, the second layer 3 is easily bent from the bending guide portion 57. Become. Further, the presence of the bending guiding portion 57 facilitates folding when the second layer 3 is folded in the longitudinal direction 6.

  In the air mattress 4 shown in FIG. 6, the hardness of the air mattress 4 can be adjusted in a plurality of stages according to the preference of a person 51 (see FIG. 4) lying on the mattress device 1. A setting operation unit (not shown) provided in the control box 5 is installed in the second layer 3 so that it can be artificially operated from the outside of the mattress device 1. When a person who wants to adjust the hardness of the air mattress 4 in accordance with the preference of the person 51 operates the setting operation unit to a certain stage where the hardness of the air mattress 4 is to be adjusted, the control unit 30 ( 1), the compressed air pressure at a certain stage for adjusting the hardness of the air mattress 4 operated by the setting operation unit is stored in the storage unit as a maximum value. The maximum value stored in the storage unit is another one in which a person who wants to adjust the hardness of the air mattress 4 according to the preference of the person 51 tries to adjust the hardness of the air mattress 4 by using the setting operation unit. Until it operates to a stage, it preserve | saves at the memory | storage part of the control part 30 (refer FIG. 1). When a person who wants to adjust the hardness of the air mattress 4 in accordance with the preference of the person 51 operates the setting operation unit to another stage in which the hardness of the air mattress 4 is adjusted, the control unit 30 sets the above setting. The compressed air pressure at another stage for adjusting the hardness of the air mattress 4 operated by the operation unit is stored in the storage unit as a maximum value. That is, the maximum value stored in the storage unit can be rewritten. The restart value stored in the storage unit of the control unit 30 can be rewritten so that it can be rewritten based on the rewriting of the maximum value.

  Moreover, the plug part 34 (refer FIG. 1) of the mattress apparatus 1 is inserted in the outlet part of the commercial power supply part which is not illustrated indoors, and the power switch part of the control box 5 is turned on by human operation, The pump unit 29 (see FIG. 1) and the control unit 30 are activated, the indicator light unit 31 emits green indicating a normal operation state, and the plurality of air cells 27 (see FIG. 1) of the air mattress 4 are inflated, As the internal pressure of the air cell 27 reaches the maximum value, when the detected air pressure reaches the maximum value stored in the storage unit of the control unit 30 in a rewritable manner, the control unit 30 supplies power to the pump unit 29. Then, when the detected air pressure decreases from the maximum value and reaches the restart value stored in the storage unit of the control unit 30 so as to be rewritable, the control unit 30 resumes the power supply to the pump unit 29. ingThat is, the air mattress 4 according to the embodiment 2 for carrying out the invention includes a maximum value stored in the storage unit of the control unit 30 in a rewritable manner and a restart value stored in the storage unit of the control unit 30 in a rewritable manner. It is a pressure switching type that keeps the air pressure constant between.

  The air mattress 4 shown in FIG. 3 or 6 is fixed to the second layer 3 by a fixing tool not shown, whereby the air mattress 4 is fixed to the mat accommodating chamber 21 shown in FIG. As a fixing tool (not shown) for fixing the air mattress 4 to the second layer 3, a hook-and-loop fastener, a hook, a double-sided tape, an adhesive, a string, a toggle button and the like can be applied. When the air mattress 4 is fixed to the second layer 3 with a fixture not shown, at least four corners of the air mattress 4 are fixed to the second layer 3 so that the position of the air mattress 4 can be maintained. .

  A protective layer not shown in FIG. 3 or FIG. 6 is provided on the upper side or the lower side of the first layer 2 shown in FIG. 3 or FIG. 6 to protect the outer slit portion 8 and the inner slit portion 9 from damage. Is done. The protective layer has a thickness that does not hinder the effect of suppressing the hammock phenomenon caused by the outer slit portion 8 and the inner slit portion 9, and is formed of a foam mattress made of nonwoven fabric or urethane foam. When the protective layer is provided on the upper side of the first layer 2, the protective layer is disposed between the exterior body (not shown) and the first layer 2, and the protective layer is provided on the lower side of the first layer 2. In this case, the protective layer is disposed between the first layer 2 and the air mattress 4.

1 is a mattress device, 2 is a first layer, 3 is a second layer, 4 is an air mattress, 5 is a control box, 6 is a longitudinal direction, 7 is a transversal direction, 8 is an outer slit portion, and 9 is an inner slit portion 10 is the vertical direction, 11 is the head region, 12 is the central region, 13 is the foot region, 14 is the center line in the short direction 7, 15 and 16 are straight lines, 17 is the center line in the longitudinal direction 6, and 18 to 20 are No., 21 is a mat accommodating chamber, 22 is a box accommodating chamber, 23 and 24 are groove portions, 25 is a display hole portion, 26 is a missing number, 27 is an air cell, 28 is a missing number, 29 is a pump portion, 30 is a control portion, and 31 is Indicator lamp section, 32 is an air hose, 33 is a plug section, 34 is a power line, 35 is a missing number, 36 is a base layer, 37 and 38 are side layers, 39 is a foot layer, 40 is a lower box housing chamber, 41 Is the upper box storage chamber, 42 to 44 are dash-dot lines, 46 is the bed, and 47 is the fixed box. Frame, 48 is a back raising mechanism, 49 is a leg, 50 is a floor, 51 is a person, 52 to 54 are missing numbers, 55 is a back raising mechanism, 56 is a bed, 57 is a bending guide, 58 to 60 are missing numbers, 61 Is a mattress device, 62 is a first layer, 63 is a second layer, 64 is a third layer, 65 and 66 are sliding members, and 67 is a person.

Claims (2)

Air composed of a plurality of air cells between a first layer used for a bed having a back-up mechanism and configured by a foam mattress and a second layer configured by a foam mattress disposed under the first layer a mattress apparatus having a mattress, a long outer slits in the longitudinal direction are provided on both sides in the lateral direction of the first layer, a portion between the outer slits of the side portions of the first layer said elongated inner slits in the transverse direction is provided at a distance from the outer slit portion, corresponding to the head or calf portion of a person lying in the longitudinal direction of the second layer and the in the center portion in the lateral direction the provided mat accommodating chamber which is open upward, said mat containing chamber wherein the air mattress is housed, to the side of the foot of a person lying in the longitudinal direction of the second layer opening upward A box storage chamber is provided avoiding the mat storage chamber, a control box body including a pump unit and a control unit is stored in the box storage chamber, and a bending guide portion is provided on the lower surface of the second layer. A mattress device, characterized in that the mattress device is provided as a concave portion that opens to a lower surface portion and both side portions in the lateral direction and is recessed from the lower surface portion . On the side of the foot portion of the person lying in the longitudinal direction of the second layer, a groove that opens to the mat storage chamber and the other end side of the second layer, avoiding the box storage chamber, and the box A groove portion that opens to the storage chamber and the groove portion is provided, and an air hose that connects the air mattress and the control box body to these groove portions, and a power source that includes a plug portion at an end extending from the control box body. The mattress device according to claim 1, wherein the wire is accommodated .

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