JP2014076256A - Mattress replacement time notification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mattress replacement time notification device which notifies any one of a user, a helper and an administrator of the expiration of the lifetime of a mattress before the mattress suffers from wear-out, and prompts any one of the user, the helper and the administrator to replace the mattress.SOLUTION: A mattress replacement time notification device 1 comprises: a mattress 5; a load sensor 11 which is placed under the mattress 5 for detecting a load applied to the mattress 5; a summation unit for summing up the time for which a load read by the load sensor 11 is equal to a specified value or higher; and an LED 13 for notifying the arrival of the replacement time of the mattress 5 when the value of the integration part has reached a first preset value.

Description

  The present invention relates to a mattress replacement time notification device.

  As this type of prior art, a bed mattress disclosed in Patent Document 1 is known. The foam is permeated by placing foam reinforcement on the top and bottom of the spring assembly, which is one of the skeleton structures of the bed mattress, and placing the foam on this permeability reinforcement and then foaming it. The mattress for the bed is made longer by using the permeable reinforcement and the foam that are made so that the spring assembly and the foam are integrated while being expanded through at least one of the fine hole and the foam expansion hole. It is to be extended.

Japanese Patent No. 4348440

  However, the bed mattress of Patent Document 1 is produced by integrating the spring assembly, the permeable reinforcing material, and the foam to extend the life of the bed mattress. It does not have a notification function. Therefore, if the user keeps using the mattress without noticing the mattress, the user's body will be distorted, and even if the user goes to sleep on the mattress for rest, the user's body will hurt. Or the user's fatigue may not be removed.

  The present invention has been made in view of the above-mentioned problems. Even if the user sleeps on the mattress for resting by notifying the user of the life of the mattress, the user's body may be painful. An object of the present invention is to provide a mattress replacement time notification device capable of reducing the possibility that the user will not be fatigued.

  According to a first aspect of the present invention, there is provided a mattress, a load sensor that is installed under the mattress and detects a load applied to the mattress, and a time during which the load read by the load sensor is a predetermined value or more. And a first notifying unit for notifying that the mattress replacement time has come when the value of the integrating unit becomes equal to or greater than a first set value.

  According to a second problem solving means of the present invention, the integrating unit includes a determining unit that determines that the load detected by the load sensor is equal to or greater than a predetermined value, and the integrating unit is detected. It is the structure which integrate | accumulates the time when it determines with the load having exceeded the predetermined value by the said determination part.

  According to a third problem solving means of the present invention, the mattress is divided into equal divided surfaces on the floor surface, and the load sensors for detecting the loads applied to the divided surfaces are provided on the divided surfaces. The integrating unit integrates the time during which each load detected by each load sensor is determined to be equal to or greater than a predetermined value, and the determining unit is one or more of the integrating units. And a second notification unit for notifying that the mattress rotation time has come when the value of the value becomes equal to or greater than a second set value.

  According to a fourth problem solving means of the present invention, the determination unit determines which of the divided surfaces the user's center of gravity load is applied to, and corresponds to the divided surface having the longest time of applying the center of gravity load. The second notification unit notifies that the mattress rotation time has come when the value of the integration unit to be exceeded is a second set value or more.

  According to a fifth problem solving means of the present invention, the determination unit notifies that the mattress rotation time has come when the value of the integration unit becomes equal to or greater than a second set value smaller than the first set value. And a second notification unit.

  According to a sixth problem solving means of the present invention, the mattress is divided into equally divided surfaces on the floor surface, and each load surface has the load sensor for detecting a load applied to each divided surface. The integrating unit integrates the time during which each load detected by each load sensor is determined to be equal to or greater than a predetermined value, and the determining unit is one or more of the integrating units. And a third notifying unit for notifying that the mattress replacement time has come when the value of becomes a third set value or more.

  In a seventh problem solving means of the present invention, the determination unit determines which of the divided surfaces the user's center of gravity load is applied to, and corresponds to the divided surface having the longest time of applying the center of gravity load. When the value of the integrating unit to be exceeded is a third set value or more, the third notification unit notifies that the mattress replacement time has come.

  According to an eighth aspect of the present invention, the mattress is installed on a bed having legs, and the load sensor is installed on the legs of the bed.

  According to a ninth problem solving means of the present invention, any one of the first notification unit, the second notification unit, and the third notification unit includes a family member, a relative, a nurse station, a care facility staff station, a home doctor, And one or more of the bed maker, having either one of a wired communication device and a wireless communication device for notifying that the mattress replacement time or rotation time has come.

  The tenth problem solving means of the present invention includes a first load detecting step for reading a load applied to the mattress, and a load determining step for determining whether or not the load applied to the mattress is a predetermined value or more. A first time integration step of integrating a time during which the load applied to the mattress is equal to or greater than a predetermined value, and a first time determination step of determining whether the accumulated time is equal to or greater than a first set time. And a first replacement time notification step of notifying that the mattress replacement time has come when the accumulated time becomes equal to or longer than a first set time.

  An eleventh problem solving means of the present invention is a replacement time notification method including a rotation determination step for determining whether or not rotation is present.

  According to a twelfth problem solving means of the present invention, one load is installed below each divided surface of the mattress divided into equal divided surfaces on the floor surface, and the load applied to each divided surface is detected. A second load detection step, a second time integration step of integrating the times when the loads detected by the respective load sensors are determined to be equal to or greater than a predetermined value, and the accumulated times of the second time A second time determining step for determining whether or not the time is equal to or longer than a set time, and a second time determining step for notifying that the mattress rotation time has come when the value of each of the integrating units becomes equal to or greater than a second set value. And a rotation time notification method having two rotation time notification steps.

  According to a thirteenth problem solving means of the present invention, one load is installed below each divided surface of the mattress divided into equal divided surfaces on the floor surface, and the load applied to each divided surface is detected. A third load detection step, a third time integration step of integrating the times when the loads detected by the respective load sensors are determined to be equal to or greater than a predetermined value, and a third time integration step. A third time determining step for determining whether or not the time is equal to or longer than a set time, and a notification for notifying that the mattress replacement time has come when the value of each of the integrating units exceeds the third set value. 3 is an exchange time notification method.

  In the first problem solving means of the present invention, the mattress replacement time notification device includes a load sensor that detects a load applied to the mattress, an integration unit that integrates a time during which the detected load is equal to or greater than a predetermined value, A notification unit for notifying that the mattress replacement time has come when the value of the unit becomes equal to or greater than the first set value. Accordingly, it is possible to notify the user that the set time of the mattress has come before the mattress has been set up and to prompt the user to change the mattress. Therefore, if the user keeps using the mattress without noticing the mattress, even if the user goes to sleep on the mattress for rest, the user's body is distorted and the user's body is painful. It is possible to reduce the risk that the user will not get out or get tired.

  In the second problem solving means of the present invention, the mattress replacement time notification device includes a determination unit that determines that the load detected by the load sensor is equal to or greater than a predetermined value. The time during which the detected load is determined to be greater than or equal to the predetermined value by the unit is integrated. As a result, the integrating unit can more accurately integrate the time during which the load read by the load sensor is equal to or greater than the predetermined value.

  In the third problem solving means of the present invention, the mattress replacement time notification device is configured such that the mattress is divided into equal divided surfaces on the floor surface, and load sensors for detecting the loads applied to the respective divided surfaces are respectively provided. The accumulating unit accumulates the time during which each load detected by each load sensor is determined to be equal to or greater than a predetermined value, and the determining unit includes one or more of the accumulating units. And a second notification unit for notifying that the mattress rotation time has come when the value of becomes a second set value or more. This informs one of the user, caregiver, and administrator that the mattress rotation time has come before the mattress is biased, and to any one of the user, caregiver, and administrator. Can encourage mattress rotation.

  In the fourth problem-solving means of the present invention, the mattress replacement time notification device determines which part of the split surface the user's center of gravity load is applied to and the longest time that the center of gravity load is applied. A notifying unit for notifying from the second notifying unit that the mattress rotation time has come when the value of the integrating unit corresponding to the divided surface is equal to or greater than the second set value; This informs one of the user, caregiver, and administrator that the mattress rotation time has come before the mattress is biased, and to any one of the user, caregiver, and administrator. Can encourage mattress rotation.

  According to a fifth problem solving means of the present invention, in the mattress replacement time notification device, the determination unit is configured to rotate the mattress when the value of the integrating unit becomes equal to or greater than a second set value that is smaller than the first set value. It has the 2nd notification part which notifies that the time has come. Thereby, it is possible to reduce the occurrence of uneven settling on the mattress, and to reduce the possibility that the user's body is distorted, the user's body is painful, and the user's fatigue cannot be removed.

  In the sixth problem solving means of the present invention, the mattress replacement time notification device is configured such that the mattress is divided into equally divided surfaces on the floor surface, and load sensors for detecting loads applied to the respective divided surfaces are respectively provided. The accumulating unit accumulates the time during which each load detected by each load sensor is determined to be equal to or greater than a predetermined value, and the determining unit includes one or more of the accumulating units. A third notification unit for notifying that the mattress replacement time has come when the value of becomes a third set value or more. This informs any one of the user, caregiver, and manager that the mattress replacement time has come before the mattress is biased, and to any one of the user, caregiver, and manager. The mattress can be exchanged.

  In the seventh problem solving means of the present invention, in the mattress replacement time notification device, the determination unit determines which of the divisional surfaces the user's center-of-gravity load is applied, and the time that the center-of-gravity load is applied is the longest. It has a notification unit for notifying from the third notification unit that the mattress replacement time has come when the value of the integration unit corresponding to the division surface becomes equal to or greater than the third set value. This informs any one of the user, caregiver, and manager that the mattress replacement time has come before the mattress is biased, and to any one of the user, caregiver, and manager. The mattress can be exchanged.

  In the eighth problem solving means of the present invention, the mattress replacement time notification device is configured such that the mattress is installed on a bed having legs and the load sensor is installed on the bed legs. Thereby, the use in a bed is attained. Furthermore, since it becomes difficult to be influenced by the bending of the mattress, the measurement accuracy of the load applied to the mattress can be improved.

  In a ninth problem-solving means of the present invention, the mattress replacement time notification device is such that any one of the first notification unit, the second notification unit, and the third notification unit is a family, a relative, a nurse station, a care facility In the configuration, which has any one of a wired communication device and a wireless communication device for notifying that at least one of the staff station, home doctor, and bed maker of the mattress replacement time or rotation time has come. is there. Thereby, even if it is difficult to notice that the user of the mattress is a care recipient and is notified that the mattress replacement time has come, the mattress can be replaced. In other words, the caregiver and / or manager in one or more of the family, relatives, nurse station, nursing staff staff, home doctor, and bed maker are notified that the mattress replacement period has arrived. This makes it easier to notice and makes it easier to change the mattress.

  In the tenth problem solving means of the present invention, the mattress replacement time notification device includes a first load reading step for detecting a load applied to the mattress, and whether or not the load applied to the mattress is a predetermined value or more. A load determining step for determining the time, a time integrating step for integrating the time during which the load applied to the mattress is equal to or greater than a predetermined value, and a first for determining whether the accumulated time is equal to or greater than a first set time. A time determination step and a first replacement time notification step for notifying that the mattress replacement time has come when the accumulated time is equal to or longer than the first set time. This can reduce the risk that the user's body will be distorted due to the user's continued use without being aware of the mattress's settling, and the user's body will be painful and the user will not be fatigued. I can do it.

  In an eleventh problem solving means of the present invention, the mattress replacement time notification device has a rotation determination step for determining whether or not rotation is present. Thereby, it is possible to reduce the occurrence of uneven settling on the mattress, and to reduce the possibility that the user's body is distorted, the user's body is painful, and the user's fatigue cannot be removed.

  According to a twelfth problem solving means of the present invention, the mattress replacement time notification device is installed one by one under each divided surface of the mattress divided into equal divided surfaces on the floor surface, and is provided on each divided surface. A second load detecting step for respectively detecting the applied load, a second time integrating step for integrating the times when the loads detected by the respective load sensors are determined to be equal to or greater than a predetermined value, A second time determination step for determining whether or not the time is equal to or greater than the second set time, and that the mattress rotation time has come when the value of each integrating unit becomes equal to or greater than the second set value. A second rotation time notification step of notifying. As a result, it is possible to reduce the overall settling of the mattress, and to reduce the possibility that the user's body is distorted, the user's body is painful, and the user's fatigue cannot be removed.

  According to a thirteenth problem solving means of the present invention, the mattress replacement time notification device is installed one by one under each divided surface of the mattress divided into equal divided surfaces on the floor surface, and is provided on each divided surface. A third load detection step for detecting the applied load, a third time integration step for integrating the times when the loads detected by the respective load sensors are determined to be equal to or greater than a predetermined value, A third time determination step for determining whether or not the time is equal to or longer than a third set time, and that the mattress replacement time has come when the value of each integrating unit exceeds the third set value. A third replacement time notification step of notifying. As a result, it is possible to reduce the overall settling of the mattress, and to reduce the possibility that the user's body is distorted, the user's body is painful, and the user's fatigue cannot be removed.

Side view of mattress replacement time notification device in this embodiment Top view of the mattress replacement time notification device in this embodiment Operation flowchart of Example 1 of mattress replacement time notification device in the present embodiment Operation flowchart of Examples 1 to 3 of the mattress replacement time notification device in the present embodiment Detailed operation flowchart of Example 2 of the mattress replacement time notification device in the present embodiment Detailed operation flowchart of Example 3 of the mattress replacement time notification device in the present embodiment

  Embodiments of the present invention will be described below in detail with reference to the drawings.

(First embodiment)
The first embodiment will be described in detail below.

  FIG. 1 is a side view of a mattress replacement time notification device 1 in the present embodiment. A bed 3 is installed on the floor 2 of the building. The bed 3 includes a frame 3a, four legs 4 below the frame 3a, a mattress 5 on the frame 3a, and a headboard 6 on the side surface of the frame 3a. One load sensor 11 is installed between one leg 4 and the floor 2. A control board 14 for determining whether or not a load of a predetermined value or more is applied to the mattress 5 is installed in the headboard 6. The control board 14 has a built-in integrating unit 12 that measures and accumulates the time during which a load of a predetermined value or more is applied to the mattress 5. The accumulating unit 12 includes a determining unit 12 a that determines that the load detected by the load sensor 11 is equal to or greater than a predetermined value and outputs a signal for accumulating time to the accumulating unit 12. On the foot side surface of the headboard 6, one LED 13 (first notification unit) that is turned on when the value of the integrating unit 12 is equal to or higher than the first set value is installed. The predetermined value for determining whether or not the mattress 5 is used is a value obtained by adding 32 kg to the weight of the mattress 5 (the average value of the weight of a 65-year-old woman, 3σ of 2009 physical fitness / exercise ability survey results) (36 kg) Is initially set in the control board 14 to 9 kg, which is obtained by dividing the value obtained by dividing the number of legs 4 by the number 4 of the legs 4 of the bed 3. The first set value of the integrating unit 12 is 30,000 hours (a set time having a safety factor in time until the mattress 5 is actually set and corresponds to use for about 10 years) in the determining unit 12a. The default setting is. The predetermined value of the load is appropriately changed according to the weight of the mattress 5 or the weight of the user, that is, the load applied to the load sensor 11. The first set value of the integrating unit 12 is appropriately changed according to the weight of the user, that is, the load applied to the load sensor 11.

  The load sensor 11 can be replaced with another sensor such as a strain gauge. The first notification unit is a mattress to one or more caregivers and managers in any one or more of family, relatives, nurse stations, nursing staff staff, home doctors, and bed makers instead of LED13. It is also possible to substitute the wired communication device 13a and the wireless communication device 13b for notifying that the service life (set time) has reached. The LED 13 can also be built in the control board 14. The predetermined value of the load sensor 11 can be changed according to the weight of the user and / or the weight of the mattress 5 by operating any one or more of the control board 14, the wired communication device 13a, and the wireless communication device 13b. is there. The predetermined value of the load and the first set value of the integrating unit 12 are reset to 0 by operating one or more of the control board 14, the wired communication device 13a, and the wireless communication device 13b when the mattress 5 is replaced. Is possible. The first set value of the replacement time of 30,000 hours is changed by operating one or more of the control board 14, the wired communication device, and the wireless communication device according to the weight of the user and / or the strength of the mattress 5. Is possible.

  Below, operation | movement of the mattress replacement time notification apparatus 1 of this embodiment is demonstrated.

  FIG. 3 is an operation flowchart of the mattress replacement time notification device 1 in this embodiment, and includes the following start step S0 to replacement time notification step S5.

(Start step S0)
Any one of the user, the assistant, and the administrator connects the power source to the control board 14 to reset the number of the integrating unit 12 to 0 so that the load applied to the mattress 5 can be read.

(First load reading step S1)
The load sensor 11 reads the load applied to the mattress 5.

(Load determination step S2 (determination unit))
The control board 14 determines whether or not the load applied to the mattress 5 is 9 kg (predetermined value) or more. Return control to the first load reading step.

(Time integration step S3 (integration unit))
The integrating unit 12 integrates the usage time when the load applied to the mattress 5 is 9 kg or more.

(First time determination step S4 (first notification unit))
The control board 14 determines whether or not the usage time accumulated by the accumulating unit 12 is 30,000 hours (mattress life) or more, and when it is 30,000 hours or more, turns on the LED 13 to notify that the replacement time has come. The process moves to the replacement time notification step, and when the time is less than the set time, the control is returned to the first load reading step.

(Replacement time notification step S5 (first notification unit))
The control board 14 turns on the LED 13 to notify the user that it is time to replace the mattress 5 when the usage time accumulated by the accumulation unit 12 reaches 30,000 hours or more. Furthermore, the wired communication device 13a and the wireless communication device 13b built in the control board 14 can be connected to one or more of the family, relatives, nurse station, nursing facility staff station, home doctor, and bed maker. Notify that the replacement time has come.

  That is, the following operations are performed by the control from the start step S0 to the replacement time notification step S5. First, any one of the user, the caregiver, and the administrator replaces the mattress 5 with a new one, connects a general household AC power source to the control board 14, and pushes the reset switch of the control board 14 to set the integrating unit 12 to zero. Reset. When the control board 14 detects from the information from the load sensor 11 that the load on the mattress 5 is 9 kg or more when the user puts on the mattress 5 or puts an object corresponding to the body weight, the control unit 14 Used to measure and accumulate the time the mattress 5 is used. When the user gets off the mattress 5 or removes the weight corresponding to the weight and the load applied to the mattress 5 is less than 9 kg, the accumulating unit 12 is stopped and the measurement and accumulation of the time when the mattress 5 is used are stopped. When the integration time of the integration unit 12 reaches 30,000 hours or more, the LED 13 is turned on. When the LED 13 is turned on, any one of the user, the caregiver, and the administrator purchases a new mattress 5 and replaces it with the mattress 5 that has been used. At the same time, any one of the user, the caregiver, and the administrator resets the number of the integrating unit 12 to zero. When any one of the assistant and the manager resets the number of the integrating unit 12 to 0, the LED 13 is turned off. If the reason why it is difficult for the user to change the mattress 5 is clear, such as when the user is a care recipient, one of the family, relatives, nurse station, care facility staff station, home doctor, and bed maker. An assistant at more than one place purchases a new mattress 5 and replaces it with the mattress 5 used so far. At the same time, the assistant and / or the manager reset the number of the integrating unit 12 to zero. When the assistant and / or the administrator reset the number of the integrating unit 12 to 0, the LED 13 is turned off. Any one of the user, the caregiver, and the administrator performs these operations every time the mattress 5 is replaced and / or at the first purchase.

  Here, the general household AC power supply is turned on to the control board 14, but it is also possible to delete the nonvolatile memory of the integrating unit 12 from the control board 14 by using a dry battery or the like.

  Below, the effect of the mattress replacement time notification device 1 of the present embodiment will be described.

  (1) The mattress replacement time notification device 1 includes a load sensor 11 that detects a load applied to the mattress 5, an integration unit 12 that integrates a time when the read load is 9 kg or more, and a value of the integration unit 12. And an LED 13 for notifying that it is time to replace the mattress 5 when the time becomes 30,000 hours (first set value) or more. As a result, the mattress 5 has reached the end of its life before the mattress 5 is set off, and the user, the caregiver, and the administrator are informed to the mattress. 5 can be exchanged. Therefore, if the user continues to use the mattress 5 without noticing the settling of the mattress 5, the user's body is distorted even if the user goes to sleep on the mattress 5 for rest. This can reduce the risk of pain and the user's fatigue. Furthermore, even when the strength of the mattress 5 is improved to extend the life of the mattress 5, the above effects can be obtained in accordance with the extended life.

(2) In the mattress replacement time notification device 1, the integrating unit 12 includes a determining unit 12a that determines that the load read by the load sensor 11 is 9 kg or more, and the integrating unit 12 includes the determining unit 12a. The time when it is determined that the detected load is 9 kg or more is integrated. Thereby, the integrating unit 12 can more accurately integrate the time when the load read by the load sensor 11 is 9 kg or more. ((3) to (7) and (12) to (13) are described in the respective effects of the second embodiment and the third embodiment described later.)
(8) The mattress replacement time notification device 1 is configured such that the mattress 5 is installed on the bed 3 having the legs 4 and the load sensor 11 is installed on the legs 4 of the bed 3. Thereby, the use in the bed 3 is attained. Furthermore, since it becomes difficult to be affected by the bending of the mattress 5, it is possible to improve the measurement accuracy of the load applied to the mattress 5.

  (9) The mattress replacement time notification device 1 is configured such that the mattress replacement time notification device 1 is the LED 13 (one of the first notification unit, the second notification unit of the second example described later, and the third notification unit of the third example). ) In place of the wired communication device 13a and wireless communication for notifying one or more of the family, relatives, nurse station, nursing staff staff, home doctor, and bed maker that it is time to replace the mattress 5. This is a configuration having any one of the devices 13b. Accordingly, the mattress 5 can be replaced even if it is difficult to notice that the user of the mattress 5 is a care recipient and has been notified that the mattress 5 replacement time has come. That is, it is time for the mattress 5 to be replaced by one of the caregivers and / or managers in one or more of the family, relatives, nurse station, nursing staff staff, home doctor, and bed maker. This makes it easier to replace the mattress 5. Furthermore, it is possible to improve the efficiency of management and replacement of the mattress 5 by centrally managing the usage time of a large number of mattresses 5 with a monitor of a central management station such as a nurse station or a bed maker.

  (10) The mattress replacement time notification device 1 includes a first load reading step for detecting a load applied to the mattress 5 and a load determination step for determining whether or not the load applied to the mattress is equal to or greater than a predetermined value. A time integration step for integrating the time when the load applied to the mattress is equal to or greater than a predetermined value, a first time determination step for determining whether the accumulated time is equal to or greater than a first set time, and integration And a first replacement time notifying step for notifying that the mattress replacement time has come when the set time exceeds the first set time. This can reduce the risk that the user's body will be distorted due to the user's continued use without being aware of the mattress's settling, and the user's body will be painful and the user will not be fatigued. I can do it.

  (11) The mattress replacement time notification method includes a load reading step for detecting a load applied to the mattress 5, a load determination step for determining whether or not the load applied to the mattress 5 is 9 kg or more, and the mattress 5 A time integration step for integrating the time when the load applied to the load is 9 kg or more, a time determination step for determining whether the integrated time is equal to or greater than the set time, and when the accumulated time is equal to or greater than the set time And a first replacement time notification step for notifying that the replacement time of the mattress 5 has come. This reduces the risk that the user's body will be distorted due to the user's continued use without noticing the settling of the mattress 5, causing the user's body to become painful and the user's fatigue to be removed. I can do it. Furthermore, even when the strength of the mattress 5 is improved and the life of the mattress 5 is extended, the above effects can be obtained in accordance with the extended life.

(Second Embodiment)
The second embodiment of the present invention will be described in detail below.

  FIG. 2 is a top view of the mattress replacement time notification device in the present embodiment. In the second embodiment, the following two contents are added to the first embodiment, and the following four contents are changed. Therefore, the description other than the added part and the changed part is omitted.

  The added portion is obtained by first adding a configuration in which the determination unit 12a includes a rotation determination unit 12a that determines whether the mattress 5 is rotated. Secondly, the load sensor 11 is installed one by one under the four corners of the mattress 5, and a configuration is added for detecting the load applied to each of the four divided surfaces 5 a obtained by dividing the floor surface of the mattress 5 into four equal parts. Is.

  First, the load is changed from the configuration in which one load sensor 11 is installed between one leg 4 (below the mattress 5) and the floor 2 to the four legs 4 (below the four corners of the mattress 5). ) And the floor 2 are changed to a configuration in which one load sensor 11 is installed. Secondly, it is detected by the load sensor 11 installed between the four legs 4 and the floor 2 from the integrating unit 12 that integrates the time during which the load read by the load sensor 11 is equal to or greater than a predetermined value. In addition, the load is changed to an integration unit 12 that integrates the times when the respective loads are determined to be equal to or greater than a predetermined value. Third, when the value of the accumulating unit 12 reaches or exceeds the first set value (lifetime of the mattress 5), the value of the accumulating unit 12 is changed from the first notifying unit that notifies that the replacement time of the mattress 5 has come. When the second set value (1/2 of the lifetime of the mattress 5) is exceeded, the second notification unit that notifies that the rotation time of the mattress 5 has come is changed. That is, the LED 13 is changed from use of lighting for notification of replacement time to use of blinking for notification of rotation time. Fourth, from the determination unit 12a that determines that the load detected by the load sensor 11 is equal to or greater than a predetermined value, the determination unit that determines that the load detected by the load sensor 11 is equal to or greater than the predetermined value. This is a change to 12a. Here, the second set value is set to ½ of the life time of the mattress 5 on the assumption that one rotation is performed before the life of the mattress 5.

  The divided surface 5a of the mattress 5 may be divided into any number other than the four divided surfaces 5a obtained by dividing the floor surface into four, and the load sensor 11 directly contacts the mattress 5 under each divided surface 5a. It is also possible to install as many as n times (n is an integer of 1 or more) the number of dividing surfaces 5a so as to be in contact with or built in. Two or more load sensors 11 can be installed between the four legs 4 (under the four corners of the mattress 5) and the floor surface 2, respectively. The predetermined value can be changed to a value other than 9 kg, and the second set value can be changed to a value other than 15,000 hours, depending on the characteristics of the mattress 5 and the user's sleeping habits. Instead of blinking, the LED 13 can be replaced by changing the illuminance up or down, changing the color tone, changing to two or more LEDs 13, or a combination thereof. .

  Below, operation | movement of the mattress replacement time notification apparatus 1 of this embodiment is demonstrated.

  FIGS. 4 and 5 are operation flowcharts of the mattress replacement time notification device 1 which are changed or added to the first embodiment in the present embodiment, and the following rotation determination step S40 to second rotation time notification step. Up to S414.

(Rotation determination step S40)
The presence or absence of rotation of the mattress 5 is determined.

(Second load reading step S411)
One load is installed below each of the four corners of the mattress 5, and the load applied to each of the four divided surfaces 5a obtained by dividing the floor surface of the mattress 5 into four equal parts is detected.

(Second time integration step S412)
The times when it is determined that the load detected by the load sensor 11 installed under the four corners of the mattress 5 has become 9 kg (predetermined value) or more are integrated.

(Second time determination step S413)
The control board 14 determines whether or not the usage time accumulated by the accumulation unit 12 is 15,000 hours (1/2 of the life of the mattress 5) or more. The process shifts to the rotation time notification step for notifying that the LED 13 blinks, and when the time is less than the set time, the control is returned to the first load reading step.

(Second rotation time notification step S414)
The control board 14 blinks the LED 13 to notify the user that it is time to replace the mattress 5 when the use time accumulated by the accumulation unit 12 reaches 15,000 hours or more. Furthermore, the wired communication device 13a and the wireless communication device 13b built in the control board 14 can be connected to one or more of the family, relatives, nurse station, nursing facility staff station, home doctor, and bed maker. Notify that the replacement time has come.

  That is, the following operations are performed by the control from the rotation determination step S40 to the second rotation time notification step S414. First, the determination unit 12a determines whether the mattress 5 being used is rotated. When the mattress 5 is not yet rotated, the usage time for each of the four divided surfaces 5a is accumulated, and the usage time of any one of the divided surfaces 5a becomes 1/2 or more of the life time of the mattress 5. LED13 blinks when When the LED 13 flashes, any one of the user, the caregiver, and the manager rotates (rotates) the mattress 5 about the center of the floor surface. When the mattress 5 has been rotated, the process proceeds to a third time integration step S421 of a third embodiment described later.

  It should be noted that the rotation of the mattress 5 can be handled by turning it upside down so that the floor surface of the mattress 5 faces downward depending on the degree of rigidity of the mattress 5.

  Below, the effect of the mattress replacement time notification device 1 of the present embodiment will be described.

  (3) The mattress replacement time notification device 1 is configured such that the mattress 5 is divided into equal divided surfaces 5a on the floor surface, and load sensors 11 that respectively detect loads applied to the divided surfaces 5a are provided on the divided surfaces. The integrating unit 12 integrates the times when the respective loads detected by the respective load sensors 11 are determined to be 9 kg or more, and the determining unit 12a is one of the integrating units 12. And a second notification unit that notifies that the rotation time of the mattress 5 has come when the above value reaches 15,000 hours or more. Thereby, it is notified to one of the user, the assistant and the manager that the mattress 5 has come to rotate before the mattress 5 is biased, and the user, the assistant and the manager are notified. One of the above can be encouraged to rotate the mattress 5. Therefore, if the user continues to use the mattress 5 without noticing the settling of the mattress 5, the user's body is distorted even if the user goes to sleep on the mattress 5 for rest. This can reduce the risk of pain and the user's fatigue. Furthermore, even when the strength of the mattress 5 is improved to extend the life of the mattress 5, the above effects can be obtained in accordance with the extended life.

  (4) In the mattress replacement time notification device 1, the load sensors 11 are installed one by one under the four corners of the mattress 5, and the loads applied to the four divided surfaces 5a obtained by dividing the floor surface of the mattress 5 into four equal parts respectively. Detecting and integrating the time when the accumulating unit 12 determines that each load detected by the load sensor 11 installed under the four corners of the mattress 5 has become 9 kg or more, and the determining unit 12a A second notification unit that notifies that the rotation time of the mattress 5 has come when it is determined that the value of 12 has reached 15,000 hours (1/2 of the life of the mattress 5) or more. As a result, the mattress 5 is informed of any rotation before the mattress 5 is biased, and the user, the assistant, or the administrator is notified, and either the user, the assistant, or the administrator is notified. One person can be encouraged to rotate the mattress 5. Therefore, if the user continues to use the mattress 5 without noticing the settling of the mattress 5, the user's body is distorted even if the user goes to sleep on the mattress 5 for rest. This can reduce the risk of pain and the user's fatigue. Furthermore, even when the strength of the mattress 5 is improved to extend the life of the mattress 5, the above effects can be obtained in accordance with the extended life.

  (5) The mattress replacement time notification device 1 rotates the mattress 5 when the value of the integrating unit 12 becomes equal to or greater than a second set value (15,000 hours) smaller than the first set value (30,000 hours). A second notification unit for notifying that the time has come; Thereby, the occurrence of uneven settling on the mattress 5 can be reduced, and the possibility that the user's body is distorted, the user's body is in pain or the user's fatigue cannot be reduced can be reduced.

  (11) The mattress replacement time notification method includes a rotation determination step for determining the presence or absence of rotation. Thereby, the occurrence of uneven settling on the mattress 5 can be reduced, and the possibility that the user's body is distorted, the user's body is in pain or the user's fatigue cannot be reduced can be reduced.

  (12) The mattress replacement time notification method is a second method in which the load applied to each of the four divided surfaces 5a which are installed one by one under the four corners of the mattress 5 and which divide the floor surface of the mattress 5 into four equal parts is detected. A load reading step, a second time integration step of integrating the times when the load detected by the load sensor 11 installed under the four corners of the mattress 5 is determined to be 9 kg or more, and an integration unit 12 And a second rotation time notification step for notifying that the rotation time of the mattress 5 has come when the value of becomes 15,000 hours or more. Thereby, the occurrence of uneven settling on the mattress 5 can be reduced, and the possibility that the user's body is distorted, the user's body is in pain or the user's fatigue cannot be reduced can be reduced.

(Third embodiment)
The third embodiment of the present invention will be described in detail below.

  Since the third embodiment is obtained by changing the following one content with respect to the second embodiment, the description other than the changed portion is omitted.

  The changed part is a first notification that the replacement time of the mattress 5 has come when the value of the integrating unit 12 becomes equal to or greater than the second set value (15,000 hours which is ½ of the life of the mattress 5). 2 From the notifying unit to the third notifying unit for notifying that the replacement time of the mattress 5 has come when the value of the integrating unit 12 becomes equal to or greater than the third set value (30,000 hours which is the life of the mattress 5). It has been changed. That is, the LED 13 is changed from the blinking use for notifying the rotation time to the lighting use for notifying the replacement time.

  The divided surface 5a of the mattress 5 may be divided into any number other than the four divided surfaces 5a obtained by dividing the floor surface into four, and the load sensor 11 directly contacts the mattress 5 under each divided surface 5a. It is also possible to install as many as n times (n is an integer of 1 or more) the number of dividing surfaces 5a so as to be in contact with or built in. Two or more load sensors 11 can be installed between the four legs 4 (under the four corners of the mattress 5) and the floor surface 2, respectively. The predetermined value can be changed to a value other than 9 kg, and the second set value can be changed to a value other than 15,000 hours, depending on the characteristics of the mattress 5 and the user's sleeping habits. Instead of lighting, the LED 13 can be replaced by changing the illuminance up or down, changing the color tone, changing to two or more LEDs 13, or changing to a combination thereof. .

  Below, operation | movement of the mattress replacement time notification apparatus 1 of this embodiment is demonstrated.

  4 and 6 are operation flowcharts of the mattress replacement time notification device 1 added to the second embodiment in the present embodiment. From the third time integration step S421 to the third replacement time notification step described below. Up to S424.

(Third load reading step S421)
One load is installed below each of the four corners of the mattress 5, and the load applied to each of the four divided surfaces 5a obtained by dividing the floor surface of the mattress 5 into four equal parts is detected.

(Third time integration step S422)
The times when it is determined that the load detected by the load sensor 11 installed under the four corners of the mattress 5 has become 9 kg (predetermined value) or more are integrated.

(Third time determination step S423)
The control board 14 determines whether or not the use time accumulated by the accumulation unit 12 is 30,000 hours (the life of the mattress 5) or more, and when it is more than 30,000 hours, turns on the LED 13 to indicate that the replacement time has come. The process proceeds to the notification of the replacement time to be notified, and when the time is less than the set time, the control is returned to the first load reading step.

(Third replacement time notification step S424)
The control board 14 turns on the LED 13 to notify the user that it is time to replace the mattress 5 when the use time accumulated by the accumulation unit 12 reaches 15,000 hours or more. Furthermore, the wired communication device 13a and the wireless communication device 13b built in the control board 14 can be connected to one or more of the family, relatives, nurse station, nursing facility staff station, home doctor, and bed maker. Notify that the replacement time has come.

  That is, the following operations are performed by the control from the third load reading step S421 to the third replacement time notification step S424. First, the determination unit 12a determines whether the mattress 5 being used is rotated. When the mattress 5 has been rotated, the usage time for each of the four divided surfaces 5a is accumulated, and the usage time of any one of the divided surfaces 5a becomes 30,000 hours or more (life time of the mattress 5). LED13 lights up when When the LED 13 is turned on, any one of the user, the caregiver, and the administrator rotates (rotates) the mattress 5 about the center of the floor surface. When the mattress 5 is not yet rotated, the process proceeds to the first load reading step S1.

  It should be noted that the rotation of the mattress 5 can be handled by turning it upside down so that the floor surface of the mattress 5 faces downward depending on the degree of rigidity of the mattress 5.

  Below, the effect of the mattress replacement time notification device 1 of the present embodiment will be described.

  (6) In the mattress replacement time notification device 1, the load sensors 11 are installed one by one under the four corners of the mattress 5, and the load applied to each of the four divided surfaces 5a obtained by dividing the floor surface of the mattress 5 into four equal parts, respectively. Detecting and integrating the time when the accumulating unit 12 determines that each load detected by the load sensor 11 installed under the four corners of the mattress 5 has become 9 kg or more, and the determining unit 12a When it is determined that the value of 12 has reached 30,000 hours (the life of the mattress 5) or longer, the LED 13 notifies that the replacement time of the mattress 5 has come. This informs one of the user, caregiver, and administrator that the mattress 5 has come to be replaced before the mattress 5 is completely damaged. Any one can be urged to change the mattress 5. Therefore, if the user continues to use the mattress 5 without noticing the settling of the mattress 5, the user's body is distorted even if the user goes to sleep on the mattress 5 for rest. This can reduce the risk of pain and the user's fatigue. Furthermore, even when the strength of the mattress 5 is improved to extend the life of the mattress 5, the above effects can be obtained in accordance with the extended life.

  (7) In the mattress replacement time notification device 1, the determination unit 12a determines which of the split surfaces 5a the user's center of gravity load is applied to, and corresponds to the split surface 5a having the longest time of applying the center of gravity load. It has LED13 which notifies from LED13 that the exchange time of mattress 5 has come when the value of integrating part 12 to perform becomes more than the 3rd preset value. As a result, the user, caregiver, or administrator is informed that the mattress 5 needs to be replaced before the mattress 5 is biased, and either the user, the caregiver, or the administrator. One person can be urged to change the mattress 5.

  (13) A method for notifying the mattress replacement time is a third method in which the load applied to each of the four divided surfaces 5a that are installed one by one under the four corners of the mattress 5 and that divide the floor surface of the mattress 5 into four equal parts is detected. A load reading step, a third time integration step of integrating the time when the load detected by the load sensor 11 installed under the four corners of the mattress 5 is determined to be 9 kg or more, and the integration unit 12 And a third replacement time notifying step for notifying that the replacement time of the mattress 5 has come when the value of becomes 30,000 hours or more. As a result, the overall settling of the mattress 5 can be reduced, and the risk of distortion occurring in the user's body, pain in the user's body, and fatigue of the user cannot be reduced.

(Additional item 1)
The integrating unit 12 or the LED 13 is the mattress replacement time notification device 1 in which the meaning of the LED 13 being lit and the replacement method of the mattress 5 are written at any one of the upper, lower, left and right positions. This makes it possible for any one of the user, the caregiver, and the administrator to easily know that the mattress 5 has come to an end even if the instructions are gone.

(Appendix 2)
The control board 14 incorporates a battery and is electrically connected to the load sensor 11 and the LED 13. The load sensor 11 has a spring that is bent by a load applied to the mattress 5 and a switch that connects the contacts when the load applied to the mattress 5 becomes 9 kg or more. Thereby, the control board 14 can be made unnecessary. The initial load of the spring can be changed by changing the initial height according to the weight of the user of the mattress 5 and / or the weight of the mattress 5.

(Additional Item 3)
The accumulating unit 12 accumulates time when the switch contacts are connected. The integration unit 12 is changed to the one with a counter, the number of 3 or more of the tens display part of the counter is changed to red, and the number of 2 or less of the tens display part and the number of thousands to thousands are displayed in black. Thus, the functions of the integrating unit 12 and the LED 13 can be substituted by the integrating unit 12 alone. In other words, when a red number appears in the integrating unit 12, it is a configuration that prompts any one of the user, the caregiver, and the administrator that it is time to replace the mattress 5. Thereby, it becomes possible to make LED13 unnecessary.

(Appendix 4)
The mattress 5 can be placed directly on the floor or tatami, and the load sensor 11 can be installed on the lower surface of the mattress 5, and the integrating unit 12, the LED 13, and the control board can be installed on the upper surface and / or the side surface of the mattress 5. It is. Thereby, it becomes possible to make the bed 3 unnecessary.

DESCRIPTION OF SYMBOLS 1 Mattress exchange time notification apparatus 2 Floor surface 3 Bed 3a Frame 4 Leg 5 Mattress 5a Dividing surface 6 Headboard 11 Load sensor 12 Accumulation part 12a Determination part 13 LED (1st notification part, 2nd notification part, 3rd notification part)
13a Wired communication device 13b Wireless communication device 14 Control board (control unit)

Claims (13)

Mattress and
A load sensor that is installed under the mattress and detects a load applied to the mattress;
An accumulator for accumulating the time during which the load read by the load sensor is equal to or greater than a predetermined value;
A first notification unit for notifying that the mattress replacement time has come when the value of the integration unit is equal to or greater than a first set value;
A mattress replacement time notification device. The integrating unit includes a determination unit that determines that the load detected by the load sensor is equal to or greater than a predetermined value,
The integrating unit integrates the time during which it is determined that the detected load has reached a predetermined value or more by the determining unit.
The mattress replacement time notification device according to claim 1. The mattress is divided into equal divided surfaces on the floor surface, and the load sensors for detecting the load applied to the respective divided surfaces are provided on the respective divided surfaces,
The accumulating unit accumulates the time during which each load detected by each load sensor is determined to be equal to or greater than a predetermined value,
The determination unit is configured to notify the mattress rotation time when one or more values of the integration units are equal to or greater than a second set value;
The mattress replacement time notification device according to claim 2, comprising: The determination unit determines which of the divided surfaces the user's center of gravity load is applied to, and the value of the integration unit corresponding to the divided surface having the longest time of applying the center of gravity load is the second setting. Notifying from the second notification unit that the mattress rotation time has come when the value exceeds the value,
The mattress replacement time notification device according to claim 2 or 3. The determination unit includes a second notification unit that notifies that the mattress rotation time has come when the value of the integration unit is equal to or greater than a second set value that is smaller than the first set value.
The mattress replacement time notification device according to any one of claims 2 to 4. The mattress is divided into equal divided surfaces on the floor surface, and the load sensors for detecting the load applied to the respective divided surfaces are provided on the respective divided surfaces,
The accumulating unit accumulates the time during which each load detected by each load sensor is determined to be equal to or greater than a predetermined value,
The determination unit, a third notification unit for notifying that the mattress replacement time has come when one or more values of the integration units are equal to or greater than a third set value;
The mattress replacement time notification device according to any one of claims 1 to 5, further comprising: The determination unit determines which of the divided surfaces the user's center of gravity load is applied to, and the value of the integration unit corresponding to the divided surface having the longest time of applying the center of gravity load is the third setting. Notifying from the third notification unit that it is time to replace the mattress when the value exceeds the value.
The mattress replacement time notification device according to any one of claims 2 to 6. The mattress is installed on a bed having legs;
The load sensor is installed on a leg of the bed,
The mattress replacement time notification device according to any one of claims 1 to 7. Any one of the first notification unit, the second notification unit, and the third notification unit is at least one of a family member, a relative, a nurse station, a care facility staff station, a home doctor, and a bed maker. Having one of a wired communication device and a wireless communication device for notifying that the mattress replacement time or rotation time has come,
The mattress replacement time notification device according to any one of claims 1 to 8. A first load detection step for reading a load applied to the mattress;
A load determination step for determining whether or not a load applied to the mattress is equal to or greater than a predetermined value;
A first time integration step of integrating a time during which a load applied to the mattress is equal to or greater than a predetermined value;
A first time determination step for determining whether or not the accumulated time is equal to or longer than a first set time;
A first replacement time notification step for notifying that the mattress replacement time has come when the accumulated time is equal to or longer than a first set time;
A mattress replacement time notification method. A rotation determination step for determining and storing whether or not there was a rotation within the usage time of the mattress being used;
The mattress replacement time notification method according to claim 10, comprising: A second load detecting step that is installed one by one under each split surface of the mattress divided into equal split surfaces on the floor surface, and detects each load applied to each split surface;
A second time integration step of integrating each time during which it is determined that the load detected by each of the load sensors has exceeded a predetermined value;
A second time determination step for determining whether or not each accumulated time is equal to or longer than a second set time;
A second rotation time notification step for notifying that the rotation time of the mattress has come when the value of each of the integration units is equal to or greater than a second set value;
The mattress replacement time notification method according to claim 10 or 11, wherein: A third load detecting step that is installed one by one under each split surface of the mattress divided into equal split surfaces on the floor surface, and detects each load applied to each split surface;
A third time integration step of integrating each time during which it is determined that the load detected by each of the load sensors is equal to or greater than a predetermined value;
A third time determination step for determining whether or not each accumulated time is equal to or greater than a third set time;
A third replacement time notification step for notifying that the replacement time of the mattress has come when the value of each of the integrating units is equal to or greater than a third set value;
The mattress replacement time notification method according to any one of claims 10 to 12, comprising:

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