JP2018000595A - Bed and pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed that reduces trouble for taking care of a bedridden care-receiver.SOLUTION: A lying platform 3 where a user lies on his/her side is swung around a pin 17 along a central axis 13 by a low-speed motor 19. A pad having multiple bag bodies is placed on the lying platform 3, and the user lies thereon on his/her side. These multiple bag bodies can be arranged at positions different from each other of the top of the lying platform 3, a fluid is sealed up on the whole, each expanded and contracted according to the capacity of the sealed fluid, and the inside comes in communication to each other through a constricted flow path for retarding the movement of the fluid by a pressure difference. When a large earthquake occurs, a weight 31 falls off from a weight supporting member 33, and thereby the pin 17 is pulled up and the lying platform 3 comes down in a state with a user on board. Simultaneously, a falling object protection member 5 is closed and protects the user from a falling object. All operation after the occurrence of earthquake uses gravity and electric power is not required.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bed and a pad, and more particularly to a technique suitable for reducing labor for caring for a bedridden care recipient.

  A caregiver who needs to take care of someone else who is forced to sleep for a long time at a hospital, nursing facility, home, etc. It is necessary to change the position where the body receives pressure from a bed or the like by changing the posture or by placing a mat under the body and changing the position of the mat. Otherwise, the body of the person requiring care will cause bedsores and pain in the body parts such as the back and waist. Moving the care recipient's body or moving the mat under the body is a heavy labor and places a heavy burden on the caregiver's body.

  As a conventional technique for solving such a problem, a bed disclosed in Patent Document 1 is known. This bed according to the prior art is configured such that a bed plate on which a user lies is rocked with respect to the bed body about an axis in the front-rear direction. Thereby, since the part of the body of the user who receives the load from the bed changes with time, it is expected that the same effect as that of turning over is obtained. However, the inclination angle of the bed plate cannot be set too large so that the user does not slide off the bed plate as exemplified by about 10 to 15 °. Therefore, it is not possible to expect the load to move so much that it rolls over. Therefore, a technique for reducing the caregiver's labor while further improving the bed slip prevention effect is expected.

  Also, care recipients who are not easy to move by themselves are difficult to take evacuation actions themselves when a large earthquake occurs, and it is also burdensome to evacuate urgently by the caregiver's hands. large. Particularly in facilities such as hospitals, since a small number of caregivers are responsible for a large number of care recipients, it takes considerable effort to evacuate all caregivers in a timely manner. As a conventional technique for solving such a problem, a bed disclosed in Patent Document 2 is known. The bed according to this prior art is configured such that when a large earthquake shake is detected, the electric mechanism operates to lower the user on the bed to the bottom of the bed and surround the user's four laps with the bed body. Has been. However, this bed has a complicated structure and requires an electric mechanism. Therefore, when a large earthquake that may cause a power failure occurs, this bed may not operate as expected. Therefore, a technique for reducing the caregiver's labor by protecting a care recipient from a disaster caused by a large earthquake by simple and highly accurate means is expected.

  Patent Document 3 discloses a massage belt having a plurality of air chambers and operated by a pneumatic supply pump.

JP 2001-112582 A JP-A-8-266373 JP 2002-52053 A

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a bed and a pad that reduce labor for caring for a bedridden care recipient.

  In order to solve the above-mentioned problems and achieve the above-mentioned object, the first aspect of the present invention is a bed, which is a bed that supports the body of a lying user, and the bed is placed before and after the bed. A horizontal base support mechanism that swingably supports around a shaft along a direction, a horizontal base swing mechanism that swings the horizontal base around the axis, and is disposed on the horizontal base. And at least one pad. Each of the at least one pad includes a plurality of bags. The plurality of bags can be arranged at different positions on the recumbent base, seal the fluid as a whole, and each expands and contracts according to the amount of the sealed fluid, and the flow path The inside communicates with each other. The flow path is formed of a flexible material that can be closed by being sandwiched from the outside. The recumbent pedestal has a pinching mechanism urged by an elastic member so as to sandwich and seal at least a part of the flow path of the at least one pad. The bed further includes first and second string bodies, a floor, and a relay member attached to the floor and relaying the second string body. The first string body has one end connected to the pinching mechanism and the other end connected to the floor so as to open the pinching mechanism by the tension of the first string body. One end of the second string body is connected to the pinching mechanism so as to open the pinching mechanism by the tension of the second string body, and an intermediate portion is relayed to the relay member attached to the floor, The other end is connected to a portion of the recumbent pedestal that is farther from the one end than the one end and opposite to the end. Accordingly, the pinching mechanism resists the biasing force of the elastic member only when the inclination angle of the horizontal base exceeds one predetermined limit in one direction and the other direction as the horizontal base is swung. The first and second string members apply tension to the pinching mechanism so as to open.

  According to this configuration, the bed rest swings around an axis along the front-rear direction of the bed, so that the weight of the user lying on the bed rest is supported and used as the posture of the bed rest changes. The position on the bedside that exerts a pressing force on the person fluctuates. A user who lies on the pad by arranging at least one pad on the bedside and arranging the pads so that the plurality of bags are located at different positions on the bedside. The bag that supports the weight of the child changes. Only when the inclination angle exceeds a predetermined limit in one direction and the other direction with the swing of the recumbent base, the pinching mechanism causes the biasing force of the elastic member by the tension of the first and second string members. Open against. For this reason, the flow path which connects the inside of a some bag body will open only when the recumbent base inclines more than each predetermined limit in one direction and another direction. Thereby, the fluid moves from one bag body to another along the inclination. As a result, the state of expansion and contraction among the plurality of bags changes as the recumbent base swings. In this way, the body part pressed by the bag body fluctuates with the rocking of the bedside, due to the swinging of the bedside and the change in the expansion / contraction state of the bag body. Thereby, a user's floor slip prevention effect improves.

  According to a second aspect of the present invention, there is provided a bed, which is a bed that supports the body of a lying user, and the bed that is swingably supported around an axis along the front-rear direction of the bed. A recumbent base support mechanism, a recumbent base swinging mechanism that swings the recumbent base around the axis, and at least one pad that is disposed and used on the recumbent base. Each of the at least one pad includes a plurality of bags. The plurality of bags can be arranged at different positions on the recumbent base, each has a fluid stopper that seals the whole so that fluid can be taken in and out, and each of the bags corresponds to the amount of the sealed fluid. It expands and contracts, and the inside communicates with each other through the flow path. The flow path is formed of a flexible material that can be closed by being sandwiched from the outside. The recumbent pedestal has a pinching mechanism urged by an elastic member so as to sandwich and seal at least a part of the flow path of the at least one pad. The bed further includes first and second string bodies, a floor, and a relay member attached to the floor and relaying the second string body. The first string body has one end connected to the pinching mechanism and the other end connected to the floor so as to open the pinching mechanism by the tension of the first string body. One end of the second string body is connected to the pinching mechanism so as to open the pinching mechanism by the tension of the second string body, and an intermediate portion is relayed to the relay member attached to the floor, The other end is connected to a portion of the recumbent pedestal that is farther from the one end than the one end and opposite to the end. Accordingly, the pinching mechanism resists the biasing force of the elastic member only when the inclination angle of the horizontal base exceeds one predetermined limit in one direction and the other direction as the horizontal base is swung. The first and second string members apply tension to the pinching mechanism so as to open.

  According to this configuration, fluid can be injected into each of at least one pad through the fluid stopper and sealed. By using the pad after sealing in the same manner as the pad of the bed according to the first aspect, the same effect as the bed according to the first aspect can be obtained. Since the pad has a fluid stopper, the fluid can be discharged when the pad is useless, and the pad can be stored in a lightweight and compact state.

  According to a third aspect of the present invention, there is provided a bed that supports a body of a user lying on the bed, and supports the bedside so as to be swingable around an axis along the front-rear direction of the bed. A recumbent base support mechanism, a recumbent base swinging mechanism that swings the recumbent base around the axis, and at least one pad that is disposed and used on the recumbent base. Each of the at least one pad includes a plurality of bags. Further, the plurality of bags can be arranged at different positions on the recumbent base, seal the fluid as a whole, and each expands and contracts according to the capacity of the sealed fluid, The inside communicates with each other through a narrow channel that delays the movement of the fluid due to the pressure difference.

  According to this configuration, the bed rest swings around an axis along the front-rear direction of the bed, so that the weight of the user lying on the bed rest is supported and used as the posture of the bed rest changes. The position on the bedside that exerts a pressing force on the person fluctuates. A user who lies on the pad by arranging at least one pad on the bedside and arranging the pads so that the plurality of bags are located at different positions on the bedside. The bag that supports the weight of the child changes. Since the fluid in the bag that supports the weight of the user has a high pressure, it tends to move to another bag through the flow path. Since the flow path is constricted to delay the movement of the fluid, the fluid moves over time. As a result, the state of expansion and contraction changes between the plurality of bags over time. The change in the state of the bag body is repeated with the swinging of the recumbent base. Thus, the body part pressed by the bag body fluctuates over time in combination with the swing of the recumbent base and the change in the expansion / contraction state of the bag body. Thereby, a user's floor slip prevention effect improves.

  According to a fourth aspect of the present invention, there is provided a bed, which is a bed that supports the body of a lying user, and the bed that is swingably supported around an axis along the front-rear direction of the bed. A recumbent base support mechanism, a recumbent base swinging mechanism that swings the recumbent base around the axis, and at least one pad that is disposed and used on the recumbent base. Each of the at least one pad includes a plurality of bags. Further, the plurality of bags can be arranged at different positions on the recumbent base, have a fluid stopper that seals the whole so that the fluid can be taken in and out, and according to the capacity of the sealed fluid Each expands and contracts, and the inside communicates with each other through a narrow channel that delays the movement of the fluid due to the pressure difference.

  According to this configuration, fluid can be injected into each of at least one pad through the fluid stopper and sealed. By using the pad after sealing in the same manner as the pad of the bed according to the third aspect, the same effect as the bed according to the third aspect can be obtained. Since the pad has a fluid stopper, the fluid can be discharged when the pad is useless, and the pad can be stored in a lightweight and compact state.

  According to a fifth aspect of the present invention, there is provided a bed according to the third or fourth aspect, wherein at least one of the at least one pad is the fluid for any of the plurality of bags. In addition, a check valve that restricts the flow direction to one side is provided in a part or all of the narrow channel while allowing inflow and outflow.

  According to this configuration, when pressure is applied to a certain bag body, when the pressure is applied to the other bag body after the fluid of the bag body moves to another bag body through the check valve, The fluid in the bag cannot return to the original bag, and must move to another bag. In this way, since the direction of fluid flow is regulated, changes in the state of expansion and contraction are likely to spread throughout the plurality of bags. For this reason, the user's floor slip prevention effect is further improved.

According to a sixth aspect of the present invention, there is provided a bed according to the fifth aspect, wherein at least part of the check valve functions as a pressure valve that opens only when there is a pressure difference exceeding a certain size. It also has.
According to this configuration, even if pressure is applied to a certain bag body, the fluid moves from the bag body to another bag body through a check valve that also functions as a pressure valve. The pressure difference must exceed a certain magnitude. For this reason, since the degree of expansion and contraction of the bag body to which the check valve that also functions as a pressure valve is connected is increased, the effect of preventing the bed slippage of the user is further improved.

According to a seventh aspect of the present invention, there is provided a bed according to the third or fourth aspect, wherein at least one of the at least one pad is provided in a part or all of the narrow channel. And a check valve that restricts the flow direction to one side, and another narrow channel in parallel with the check valve.
According to this configuration, since pressure is applied to a certain bag body, after the fluid of the bag body moves to another bag body through the check valve and another narrow channel, the pressure is applied to the other bag body. In this case, the fluid in the other bag body can be returned to the original bag body only through another narrow channel, but a longer time is required because the check valve cannot be returned. . In this way, since the ease of fluid flow is not uniform depending on the direction, the change in the state of expansion and contraction tends to spread over the entire plurality of bags. For this reason, the user's floor slip prevention effect is further improved.

  According to an eighth aspect of the present invention, there is provided a bed according to the seventh aspect, wherein another check valve is interposed in the another narrow channel, and includes the other check valve. The check valves in a parallel relationship with each other have the directions in which the flow of fluid is regulated opposite to each other, and the narrow flow channels in a parallel relationship with each other including the another narrow flow channel are The degree to which the movement of the fluid is delayed is different from each other.

  According to this configuration, since pressure is applied to a certain bag body, the fluid in the bag body has a relatively weak narrow flow path with a degree of delaying the movement of the fluid, and the check valve interposed in the flow path. When the pressure is applied to the other bag body after moving to another bag body, the fluid of the other bag body has a relatively strong constricted flow path with a degree of delaying the movement of the fluid, and the Although it is possible to return to the original bag through the check valve interposed in the flow path, a longer time is required. In this way, since the ease of fluid flow is not uniform depending on the direction, the change in the state of expansion and contraction tends to spread over the entire plurality of bags. For this reason, the user's floor slip prevention effect is further improved.

According to a ninth aspect of the present invention, there is provided a bed according to the eighth aspect, wherein at least a part of the other check valve is a pressure valve that opens only when there is a pressure difference exceeding a certain size. It also has the function of
According to this configuration, even if pressure is applied to a certain bag body, the fluid moves from the bag body to another bag body through a check valve that also functions as a pressure valve. The pressure difference must exceed a certain magnitude. For this reason, since the degree of expansion and contraction of the bag body to which the check valve that also functions as a pressure valve is connected is increased, the effect of preventing the bed slippage of the user is further improved.

According to a tenth aspect of the present invention, there is provided a bed according to the third or fourth aspect, wherein at least one of the at least one pad has three or more of the plurality of bags. It is a bag body, and the narrow channel forms a circulation path for circulating the plurality of bag bodies.
According to this configuration, the unevenness between the plurality of bag bodies formed by expansion and contraction is not repeated between some of the bag bodies, but it becomes easy to go around all the bag bodies. That is, the change in the state of expansion / contraction tends to spread over the whole of the plurality of bags. For this reason, the user's floor slip prevention effect is further improved.

  According to an eleventh aspect of the present invention, there is provided a bed according to the tenth aspect, wherein a non-return for restricting a flow direction to one or all of the narrow flow paths forming the circulation path. A valve is interposed.

  According to this configuration, when pressure is applied to a certain bag body, when the pressure is applied to the other bag body after the fluid of the bag body moves to another bag body through the check valve, The fluid in the bag cannot return to the original bag, and must move to another bag. Furthermore, in order for the fluid to return to the original bag, it is necessary to make a round of the entire plurality of bags. As a result, the change in the state of expansion and contraction tends to spread over the whole of the plurality of bags. For this reason, the user's floor slip prevention effect is further improved.

  According to a twelfth aspect of the present invention, there is provided a bed according to the eleventh aspect, wherein at least a part of the check valve functions as a pressure valve that opens only when there is a pressure difference exceeding a certain size. It also has.

  According to this configuration, even if pressure is applied to a certain bag body, the fluid moves from the bag body to another bag body through a check valve that also functions as a pressure valve. The pressure difference must exceed a certain magnitude. For this reason, since the degree of expansion and contraction of the bag body to which the check valve that also functions as a pressure valve is connected is increased, the effect of preventing the bed slippage of the user is further improved.

  According to a thirteenth aspect of the present invention, there is provided a bed according to any one of the third to twelfth aspects, wherein the frequency of swinging of the recumbent pedestal is set within a range of 10 minutes to 24 hours. The constricted flow path has a range of 5 minutes to 12 hours in which the fluid substantially flows out from the bag body pressed by the body load of the lying user. Or can be set.

  According to this configuration, the bed rocking cycle and the function of the narrow flow path for delaying the movement of the fluid to be used are set within a preferable range or can be set. The effect is further enhanced.

  According to a fourteenth aspect of the present invention, there is provided a bed according to any one of the first to thirteenth aspects, wherein the recumbent pedestal includes a pad fixing mechanism for removably fixing the at least one pad. Including.

  According to this configuration, since the pad can be detachably fixed to the recumbent base, the pad can be exchanged or removed when not needed, which is convenient.

  A fifteenth aspect of the present invention is the bed according to any one of the first to fourteenth aspects, wherein the fluid is a liquid or a gel fluid.

  According to this configuration, since the fluid to be used is non-shrinkable, the feeling of pressing the user's body is good. Further, since the viscosity of the fluid is larger than that of gas, when a narrow flow path is provided, it is easy to form a narrow flow path that requires a long time for fluid movement.

  According to a sixteenth aspect of the present invention, there is provided a bed according to any one of the first to fifteenth aspects, wherein a plurality of rollers and the plurality of rollers are arranged in a direction substantially orthogonal to the rotation axis. And a pair of bearings that support the rotating shaft at both ends, and further comprising a roller array body that can be placed on the recumbent table so that the array direction of the rollers is along the front-rear direction. . The pair of bearings support the plurality of rollers such that an angle formed by the rotation shaft with respect to an arrangement direction of the plurality of rollers can freely vary within a certain range. Two grooves along the front-rear direction are formed in the horizontal base in the vicinity of both ends in the left-right direction on the upper surface. The bed includes a floor, and the bed further includes two long members and an engaging member. The two elongate members are respectively connected to the floor through elastic members that extend along the two grooves, and both ends are connected to the floor, and at least one of the both ends is extendable, Thereby, it is a string-like or belt-like thing that reciprocates in the opposite directions along the groove along with the swinging of the horizontal base. The engaging member is fixed to the two long members, and when the roller array is placed on the horizontal base, by engaging with the pair of bearings respectively, The pair of bearings can be reciprocated in the front-rear direction along with the swing.

  According to this configuration, the two long members reciprocate in the front-rear direction and in opposite directions with the swinging of the horizontal base. By placing the roller array on the horizontal base and engaging the pair of bearings with the engaging members fixed to the two long members, respectively, both ends of the plurality of rollers in the front-rear direction, And they can be reciprocated in opposite directions. As a result, the position of the pressing force acting on the user's body lying on the roller fluctuates, so that the effect of preventing the floor slippage of the user is enhanced.

  According to a seventeenth aspect of the present invention, there is provided a bed according to the sixteenth aspect, wherein the engaging member fixed to the two long members and the pair of bearings are arranged in the front-rear direction. Engage with play.

  According to this configuration, for play, the amplitude of the reciprocating motion of both ends of the plurality of rollers is suppressed to be smaller than the amplitude of the reciprocating motion of the engaging members fixed to the two long members. Thereby, excessive movement of the roller is suppressed.

  According to an eighteenth aspect of the present invention, there is provided a bed according to the seventeenth aspect, wherein the pair of bearings have a variable mechanism that makes the size of the play variable.

  According to this configuration, it is possible to change the amplitude of the reciprocating motion of both ends of the plurality of rollers according to, for example, the user's preference and the swinging width of the recumbent base.

  According to a nineteenth aspect of the present invention, there is provided a bed according to any one of the sixteenth to eighteenth aspects, wherein the two long members are elastic in which both of the ends have different spring coefficients. It is connected to the floor via possible elastic members.

  According to this configuration, the amplitude of the reciprocating motion at both ends of the plurality of rollers can be reduced compared to the case where only one of the two long members is connected to the floor via the elastic member. . Thereby, excessive reciprocation of the roller is suppressed.

  According to a twentieth aspect of the present invention, there is provided a bed according to any one of the first to nineteenth aspects, wherein the bed is placed on the bedside so as to keep a distance from the user lying on the bedside. And a cover that can be opened and closed or detachably provided, a blower mechanism that sends air from below the horizontal bed to the inside of the cover, and an air temperature adjustment mechanism that heats or cools the air sent by the blower mechanism .

  According to this configuration, the user can lie down on the bedside without a futon, and the user is wrapped in a fresh air flow, so even if the user continues to use it for a long period of time. , It is possible to prevent the user's body from being steamed or covered. Since the cover can be opened and closed or removed, it does not prevent the user from going into and out of the bed, and when the user needs care, the care of the lying user is prevented. Absent.

  According to a twenty-first aspect of the present invention, there is provided a bed according to any of the first to twentieth aspects, wherein the recumbent support mechanism supports the recumbent support so that the support state can be released. The bed further includes a fallen object protection member, a buffer mechanism, a closing drive mechanism, and an earthquake detection unit. The fallen object protection members can be opened and closed with respect to each other, and are arranged separately on both sides of the bed so as to sandwich the recumbent base when opened. When the support state of the bedside by the bedside support mechanism is released, the buffering mechanism is such that the bedside is in a substantially horizontal posture and is slower than the natural fall speed, and the user and the bedside table It is possible to descend by weight. The closing drive mechanism transmits the descending movement of the recumbent base to the falling object protection member so that the falling object protection member closes as the recumbent base descends. The earthquake detection unit detects the occurrence of an earthquake with a strength exceeding a specified level, and drives the recumbent base support mechanism so as to release the support state of the recumbent base.

  According to this configuration, when an earthquake with a strength exceeding a specified level occurs, the horizontal base descends due to the weight of the user and the horizontal base, and the falling object protection member is blocked. Since the falling object prevention member is blocked, the user can be protected from falling objects caused by the earthquake. Since an electric mechanism or the like is not required for lowering the bedside and closing the falling object protection member, the structure is simple, and it is not affected by the power failure caused by the earthquake. The recumbent pedestal has a substantially horizontal posture and descends more slowly than the natural fall speed, so that the impact and discomfort experienced by the user as the recumbent pedestal descends can be alleviated or eliminated.

  According to a twenty-second aspect of the present invention, there is provided a bed according to the twenty-first aspect, wherein holes along the axis are formed at both ends of the recumbent base in the front-rear direction. The recumbent base support mechanism is inserted into the holes so as to be slidable along the shaft, thereby supporting the recumbent base so as to be swingable around the shaft, and the 2 And a support mechanism main body that slidably supports the pins along the axis. The earthquake detection unit slides the two pins along the axis so that the two pins are disengaged from either the hole or the support mechanism main body. The support state of the recumbent pedestal is released.

  According to this configuration, it is possible to release the support state of the bedside by a simple mechanism in which the earthquake detection unit is driven to slide the two pins.

  According to a twenty-third aspect of the present invention, there is provided a bed according to the twenty-second aspect, wherein the earthquake detection unit is arranged so as to penetrate the inside of the recumbent base or along the lower surface of the recumbent base. And a long connecting member for connecting the two pins so as to perform the same movement. Further, the connecting member is set such that when one of the two pins slides so as to be removed from the hole of the horizontal base, the other pin is detached from the support mechanism body, And, when the one pin is slid so as to be removed from the hole of the recumbent base, the connection member is arranged so that the connection state between the recumbent base and the one pin is released by the gravity of the user. On the other hand, it has an engaging member standing upward so that it can be detachably engaged with the pin from below. Further, the earthquake detection unit slides the one pin along the axis so that the one pin is removed from the hole of the recumbent base, and further moves the movement of the one pin via the connecting member. By transmitting to the other pin, the support state of the recumbent base is released.

  According to this configuration, the earthquake detection unit slides the one pin so as to be removed from the hole of the horizontal base, and transmits the movement to the other pin through the connecting member, thereby the support state of the horizontal base is determined. It becomes possible to cancel.

According to a twenty-fourth aspect of the present invention, there is provided a bed according to the twenty-second or twenty-third aspect, wherein the earthquake detection unit is capable of falling by a weight and an earthquake having a strength exceeding the regulation. And a gravity transmission mechanism for transmitting the gravity of the dropped weight to the two pins so that the two pins slide along the axis. .
According to this configuration, since the pin is slid using the gravity of the weight, the configuration of the earthquake detection unit is further simplified.

  According to a twenty-fifth aspect of the present invention, there is provided a bed according to any of the twenty-second to twenty-fourth aspects, wherein the recumbent base support mechanism slides in a direction to release the support state of the recumbent base. As described above, an urging mechanism that urges the two pins by an elastic restoring force of an elastic member, and a locking mechanism that releasably locks the sliding of the two pins by the urging mechanism. ,have. In addition, the earthquake detection unit releases the state in which the weight, the weight support member that supports the weight so that it can be dropped by an earthquake exceeding the regulation, and the sliding of the two pins are locked. And a gravity transmission mechanism for transmitting the gravity of the dropped weight to the locking mechanism.

  According to this configuration, the locked state by the locking mechanism is released using the gravity of the weight, and as a result, the pin slides due to the elastic restoring force of the elastic member of the biasing mechanism, and the support state of the horizontal base is Canceled. In this way, the sliding of the pin in the direction to release the support state of the horizontal platform is brought about by the elastic restoring force of the elastic member instead of or together with the gravity of the weight, so that the weight can be reduced in weight. it can.

According to a twenty-sixth aspect of the present invention, there is provided a bed according to any one of the twenty-first to twenty-fifth aspects, wherein the closing drive mechanism includes a string body that connects the recumbent base and the fallen object protection member. And a relay member that converts the movement of the string body accompanying the descending of the recumbent pedestal into a movement in a direction to close the falling object protection member.
According to this configuration, the closed drive mechanism is realized with a simpler configuration.

  According to a twenty-seventh aspect of the present invention, there is provided a bed according to any one of the twenty-first to twenty-sixth aspects, wherein the support base is lowered by releasing the support state of the support base. In order to allow the user to escape to the outside, there are further provided two doors formed on both sides of the bed in the left-right direction and openable from the inside to the outside of the bed.

  According to this configuration, when the user descends with the bedside due to the occurrence of an earthquake, either one of the two doors is opened outward so as not to interfere with the user, and the user is brought outside. You can escape. Moreover, even if there is a fallen object on the outside of one of the two doors and the other door cannot be opened, the other door can be opened, so that the user can escape more reliably. it can. In addition, it is easy for the user to escape by himself by pressing any door from the inside.

  According to a twenty-eighth aspect of the present invention, there is provided a pad comprising a plurality of bags, the plurality of bags being laid under the body of a lying user and arranged at different positions. The fluid is sealed as a whole, and the inside of each fluid is expanded and contracted according to the capacity of the sealed fluid, and the interior is mutually connected through a narrow channel that delays the movement of the fluid due to the pressure difference. Communicate.

  According to this configuration, by applying the pad to the bed in which the horizontal bed can swing, the same effect as described for the bed according to the third aspect can be obtained. In addition, the body part pressed by the bag fluctuates over time by using it with a bed or bedding that does not swing the bedside, or simply laying it under the body of the user who is lying down. Therefore, the effect of preventing the user from getting out of bed can be obtained. In particular, when the user who lies down turns over at an appropriate frequency or turns over the user's body, the bed slip prevention effect is enhanced.

  According to a twenty-ninth aspect of the present invention, there is provided a pad including a plurality of bags, the plurality of bags being laid under the body of a lying user and arranged at different positions. A constriction that has a fluid stopper that seals the whole so that fluid can be taken in and out, and each of the sealed fluids expands and contracts to delay movement of the fluid due to a pressure difference The inside communicates with each other through a simple flow path.

  According to this configuration, the same effect as described for the bed according to the fourth aspect can be obtained by injecting a fluid into the pad and applying the fluid to the bed on which the bedside can swing. In addition, the body part pressed by the bag fluctuates over time by using it with a bed or bedding that does not swing the bedside, or simply laying it under the body of the user who is lying down. Therefore, the effect of preventing the user from getting out of bed can be obtained. In particular, when the user who lies down turns over at an appropriate frequency or turns over the user's body, the bed slip prevention effect is enhanced.

  According to a thirtieth aspect of the present invention, there is provided a pad according to the twenty-eighth or twenty-ninth aspect, wherein the fluid is allowed to flow in and out of any of the plurality of bags, while the narrow flow path. In part or all of the above, there is a check valve that restricts the flow direction to one side.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 5th aspect.

  According to a thirty-first aspect of the present invention, there is provided a pad according to the thirty-third aspect, wherein at least a part of the check valve functions as a pressure valve that opens only when there is a pressure difference exceeding a certain size. It also has.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 6th aspect.

  According to a thirty-second aspect of the present invention, there is provided a pad according to any of the twenty-eighth and twenty-ninth aspects, wherein the check is made to restrict the flow direction to one or all of the narrowed flow paths. A valve and another constricted flow path in parallel with the check valve.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 7th aspect.

  According to a thirty-third aspect of the present invention, there is provided a pad according to the thirty-second aspect, wherein another check valve is interposed in the another narrow flow path, and includes the another check valve. The check valves in a parallel relationship with each other have the directions in which the flow of fluid is regulated opposite to each other, and the narrow flow channels in a parallel relationship with each other including the another narrow flow channel are The degree to which the movement of the fluid is delayed is different from each other.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 8th aspect.

  According to a thirty-fourth aspect of the present invention, there is provided a pad according to the thirty-third aspect, wherein at least a part of the other check valve opens only when a pressure difference exceeding a certain magnitude is present. It also has the function of

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 9th aspect.

  According to a thirty-fifth aspect of the present invention, there is provided a pad according to the twenty-eighth or twenty-ninth aspect, wherein the plurality of bag bodies are three or more bag bodies, and the narrow channel is the plurality of the plurality of bag bodies. A circulation path that circulates through the bag body is formed.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 10th aspect.

  According to a thirty-sixth aspect of the present invention, there is provided a pad according to the thirty-fifth aspect, and a check that restricts the flow direction to one or all of the narrow flow paths forming the circulation path. A valve is interposed.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 11th aspect.

  According to a thirty-seventh aspect of the present invention, there is provided a pad according to the thirty-sixth aspect, wherein at least part of the check valve functions as a pressure valve that opens only when there is a pressure difference exceeding a certain size. It also has.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 12th aspect.

  A thirty-eighth aspect of the present invention is the pad according to any of the twenty-eighth to thirty-seventh aspects, wherein the fluid is a liquid or a gel fluid.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 15th aspect.

  According to a thirty-ninth aspect of the present invention, there is provided a pad according to any of the twenty-eighth to thirty-eighth aspects, wherein the narrow channel is formed from a bag body pressed by a body load of a lying user. The time when the fluid substantially flows out is set to be within a range of 5 minutes to 12 hours, or can be set.

  According to this configuration, the function of the constricted flow path that delays the movement of the fluid to be used is set within a preferable range or can be set, so that the effect of preventing the floor slippage of the user is further enhanced.

  According to a 40th aspect of the present invention, there is provided a bed comprising a bedside support, a bedside support mechanism, a fallen object protection member, a buffer mechanism, a closed drive mechanism, and an earthquake detection unit. Yes. The Yokohama stand supports the body of the user lying down. The recumbent base support mechanism supports the recumbent base so that the support state can be released. The fallen object protection members can be opened and closed with respect to each other, and are arranged separately on both sides of the bed so as to sandwich the recumbent base when opened. When the support state of the bedside by the bedside support mechanism is released, the buffering mechanism is such that the bedside is in a substantially horizontal posture and is slower than the natural fall speed, and the user and the bedside table It is possible to descend by weight. The closed drive mechanism transmits the descending movement of the recumbent base to the falling object protection member so that the falling object protection member is closed as the recumbent base descends. The earthquake detector detects the occurrence of an earthquake with a strength exceeding a specified level and drives the recumbent base support mechanism so as to release the support state of the recumbent base.

  According to this configuration, when an earthquake with a strength exceeding a specified level occurs, the horizontal base descends due to the weight of the user and the horizontal base, and the falling object protection member is blocked. Since the falling object prevention member is blocked, the user can be protected from falling objects caused by the earthquake. Since an electric mechanism or the like is not required for lowering the bedside and closing the falling object protection member, the structure is simple, and it is not affected by the power failure caused by the earthquake. The recumbent pedestal has a substantially horizontal posture and descends more slowly than the natural fall speed, so that the impact and discomfort experienced by the user as the recumbent pedestal descends can be alleviated or eliminated.

  According to a 41st aspect of the present invention, there is provided a bed according to the 40th aspect, wherein the recumbent support mechanism is capable of swinging the recumbent base around an axis along the front-rear direction of the bed. The bed is further provided with a recumbent base swinging mechanism that removably supports the support state and swings the recumbent base around the shaft.

  According to this configuration, the part where the user receives pressure from the bedside can be changed, and an effect of reducing the user's bed slip can be obtained. In particular, when used in combination with the pad of the present invention, the effect of preventing bed slip can be enhanced.

  According to a forty-second aspect of the present invention, there is provided a bed according to the forty-first aspect, wherein holes along the axis are formed at both ends of the recumbent base in the front-rear direction. The recumbent base support mechanism is inserted into the holes so as to be slidable along the shaft, thereby supporting the recumbent base so as to be swingable around the shaft, and the 2 And a support mechanism main body that slidably supports the pins along the axis. Further, the earthquake detection unit slides the two pins along the axis so that the two pins are disengaged from either the hole or the support mechanism main body. The support state of the recumbent pedestal is released.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 22nd aspect.

  According to a forty-third aspect of the present invention, there is provided a bed according to the forty-second aspect, wherein the earthquake detection unit is disposed so as to penetrate the inside of the horizontal bed or along the lower surface of the horizontal bed. And a long connecting member for connecting the two pins so as to perform the same movement. The connecting member is set such that when one of the two pins slides so as to be removed from the hole of the horizontal base, the other pin is removed from the support mechanism main body. And, when the one pin is slid so as to be removed from the hole of the recumbent base, the connection member is arranged so that the connection state between the recumbent base and the one pin is released by the gravity of the user. On the other hand, it has an engaging member standing upward so that it can be detachably engaged with the pin from below. Further, the earthquake detection unit slides the one pin along the axis so that the one pin is removed from the hole of the recumbent base, and further moves the movement of the one pin via the connecting member. By transmitting to the other pin, the support state of the recumbent base is released.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 23rd aspect.

According to a forty-fourth aspect of the present invention, there is provided a bed according to the forty-second or forty-third aspect, wherein the earthquake detecting unit is capable of falling due to a weight and an earthquake having a strength exceeding the specified value. And a gravity transmission mechanism for transmitting the gravity of the dropped weight to the two pins so that the two pins slide along the axis. .
According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 24th aspect.

According to a forty-fifth aspect of the present invention, there is provided a bed according to any one of the forty-second to forty-fourth aspects, wherein the bedside support mechanism slides in a direction to release the support state of the bedside table. As described above, an urging mechanism that urges the two pins by an elastic restoring force of an elastic member, and a locking mechanism that releasably locks the sliding of the two pins by the urging mechanism. ,have. In addition, the earthquake detection unit releases the state in which the weight, the weight support member that supports the weight so that it can be dropped by an earthquake exceeding the regulation, and the sliding of the two pins are locked. And a gravity transmission mechanism for transmitting the gravity of the dropped weight to the locking mechanism.
According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 25th aspect.

  According to a forty-sixth aspect of the present invention, there is provided a bed according to any one of the forty-fourth to forty-fifth aspects, wherein the closing drive mechanism includes a string body that connects the recumbent base and the fallen object protection member. And a relay member that converts the movement of the string body accompanying the descending of the recumbent pedestal into a movement in a direction to close the falling object protection member.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 26th aspect.

  According to a 47th aspect of the present invention, there is provided a bed according to any one of the 40th to 46th aspects, wherein the recumbent table is lowered by releasing the support state of the recumbent base. In order to allow the user to escape to the outside, there are further provided two doors formed on both sides of the bed in the left-right direction and openable from the inside to the outside of the bed.

  According to this structure, there exists an effect | action and effect similar to what was described about the bed by the 27th aspect.

  As described above, according to the present invention, a bed and a pad that reduce labor for nursing a bedridden care recipient are realized.

It is a perspective view which illustrates the structure of the bed by one embodiment of the present invention, and has removed and shown a part of bed. It is an external appearance perspective view which illustrates the horizontal bed of the bed of FIG. 1, and the member mounted on it. It is the elements on larger scale which expand and illustrate a part of the horizontal base shown in FIG. 2 and the roller array body mounted on it. FIG. 3 is an operation explanatory view illustrating the operation of a roller array placed on the horizontal base shown in FIG. 2. FIG. 3 is a perspective view illustrating a pad fixing mechanism that detachably fixes a pad placed on the horizontal base shown in FIG. 2 to the horizontal base. It is a schematic plan view which illustrates the pad by one embodiment of this invention. It is a schematic plan view which illustrates the pad by another embodiment of this invention. It is a schematic plan view which illustrates the pad by further another embodiment of this invention. FIG. 2 is an overall external perspective view illustrating the external appearance of the bed in FIG. 1. FIG. 10 is a diagram illustrating the appearance and structure of the cover of the bed illustrated in FIG. 1 and FIG. 9, (a) is a schematic external perspective view, and (b) and (c) are mechanisms for attaching the cover to the bed body. It is an expanded sectional view illustrated. It is sectional drawing of the bed illustrated by FIG.1 and FIG.9, (a) is whole sectional drawing, (b) is sectional drawing to which one part was expanded. FIG. 10 is an operation explanatory view illustrating the swinging of the bedside of the bed illustrated in FIG. 1 and FIG. 9 and the closing process of the falling object protection member, (a) is a front view illustrating the normal operation; ) Is a plan view illustrating a normal operation, and (c) is a front view illustrating an operation associated with the occurrence of an earthquake. It is a figure which illustrates the buffer mechanism of the bed illustrated by FIG.1 and FIG.9, (a) is operation | movement explanatory drawing explaining operation | movement of a buffer mechanism, (b) is sectional drawing of a buffer mechanism. FIG. 10 is a diagram illustrating a fallen object protection member of the bed illustrated in FIG. 1 and FIG. 9, (a) is a front view of the fallen object protection member, and (b) is a perspective view of a part of the fallen object protection member. c) is a perspective view illustrating a part of a mechanism for guiding a fallen object protection member. FIG. 15 is a plan view illustrating a part of the falling object protection member of FIG. 14. It is side surface sectional drawing which illustrates a part of fallen object protection member of FIG. FIG. 3 is a schematic explanatory view illustrating another mechanism for driving the roller array mounted on the horizontal base shown in FIG. 2. It is sectional drawing which illustrates the non-return valve which the pad illustrated in FIGS. 6-8 has. It is a figure which illustrates the mechanism which adjusts the width | variety of the constriction flow path of the pad illustrated in FIGS. It is a figure which shows another example of the buffer mechanism of a bed, (a) is a top view of a bed rear part, (b) is sectional drawing along the AA line of (a), (c) is a figure of (a). It is sectional drawing along the BB line. It is an enlarged view which expands and shows a part of buffer mechanism illustrated in Drawing 20, and (a) is a perspective view of a recumbent base receiving member which receives a recumbent base which is going to fall, (b) is a perspective view of Drawing 20 (a). It is an external view of the side stand seen from back along CC line. It is a figure which illustrates the horizontal bed which the bed which added another function to the bed illustrated in FIG. 1, and the pad mounted on it, (a) is a perspective view, (b) is a front view It is. It is sectional drawing of a part of bed illustrated in FIG. It is sectional drawing of a part of bed illustrated in FIG. FIG. 23 is a partial top view and a partial perspective view of the horizontal base illustrated in FIG. 22. It is operation | movement explanatory drawing of a horizontal bed illustrated in FIG. FIG. 12 is an enlarged cross-sectional view illustrating a modified example of the horizontal base support mechanism and the earthquake detection unit illustrated in FIG. 11.

  FIG. 1 is a perspective view illustrating the structure of a bed according to an embodiment of the present invention, in which a part of the bed is removed for convenience. An overall external perspective view of this bed is illustrated in FIG. 9 described later. The bed 101 includes a bed main body 1, a recumbent base 3, and a falling object protection member 5. The bed main body 1 has a rectangular box-shaped portion 7 whose upper surface is open. The bed body 1 further includes a storage portion 9 that is connected to the front of the box-shaped portion 7. The connecting portion between the box-shaped portion 7 and the storage portion 9 is opened, and the space inside the both is in communication therewith. The recumbent pedestal 3 is a pedestal that supports the body of a user such as a caregiver who is lying down. The bedside table 3 extends along the front-rear direction 11 of the bed 1 and through a pin 17 located on the central axis 13 so as to be swingable around the central axis 13 located in the center of the left-right direction 12. 1 is supported. The pins 17 are arranged at two positions on the front and rear sides of the recumbent base 3 and function as a swing shaft of the recumbent base 3. In FIG. 1, only the pin 17 located at the front portion of the recumbent base 3 appears, and the rear pin 17 is hidden by the recumbent base 3. The two pins 17 and the portion of the bed main body 1 that supports these pins 17 correspond to a specific example of the horizontal bed support mechanism of the present invention. As an example, the bed 101 and the bedside table 3 are illustrated as having a main portion made of wood, but can be made of metal such as steel, and are formed of other strong materials instead of them. Also good.

  A low speed motor 19 is installed inside the storage portion 9 of the bed body 1, and through a pulley 21 attached to a drive shaft of the low speed motor 19 and a belt 23 wound around the peripheral surface of the pulley 21, The power of the low-speed motor 19 is transmitted to the horizontal base 3. Both ends of the belt 23 are connected to both ends of the horizontal base 3 in the left-right direction 12 or in the vicinity thereof. For this reason, when the low-speed motor 19 repeats forward rotation and reverse rotation at a slow speed, the horizontal platform 3 swings around the central axis 13. For example, the angle of shaking is within about ± 15 °, and the period of shaking is in the range of about 10 minutes to about 24 hours. Preferably, the angle and period of the swing of the recumbent base 3 can be selected by an operator such as a caregiver operating an operation panel (not shown) of the low-speed motor 19. The operation panel (not shown) is installed on the outer surface of the bed main body 1, for example. The low-speed motor 19, the pulley 21, the belt 23, and the operation panel (not shown) correspond to a specific example of the horizontal base swing mechanism of the present invention.

  Preferably, unevenness is formed on the peripheral surface of the pulley 21 like a gear, and the unevenness is also formed on the belt 23 so as to mesh with the unevenness. Thereby, it is possible to prevent slippage between the pulley 21 and the belt 23. Preferably, the belt 23 is a lined belt with reduced stretchability. Thereby, when the recumbent base 3 should be returned to a horizontal attitude | position, the shift | offset | difference from horizontal can be suppressed. When a sensor (not shown) for detecting that the horizontal bed 3 is in a horizontal state is installed in the bed body 1 and the operator operates the operation panel so as to return the horizontal bed 3 to the horizontal position, The low-speed motor 19 may be controlled so that the low-speed motor 19 stops when the sensor detects the horizontal state of the recumbent base 3. As a result, even when a deviation occurs between the belt 23 and the pulley 21 or when the belt 23 is considerably expanded and contracted, it is possible to correctly return the position of the recumbent base 3 to the horizontal.

  The low-speed motor 19 is a motor that places more importance on the torque than the rotational speed. For example, the rotational speed of the rotor of the motor 19 is lowered by a multistage reduction gear, and the torque is increased and transmitted to the pulley 21. The Therefore, the low-speed motor 19 can be realized with a relatively small size. The low-speed motor 19 is preferably of a type in which the pulley 21 does not rotate due to an external force by braking when stopped. Thereby, it is possible to prevent the recumbent base 3 from being inadvertently rotated by an external force such as the weight of a person lying on the recumbent base 3.

  In addition to the low-speed motor 19, the storage unit 9 of the bed main body 1 has an earthquake detection weight 31, a weight support member 33 that supports the weight 31, and the gravity of the weight 31 when the weight 31 falls from the weight support member 33. Are connected to the pin 17, and a relay member 37 that relays the string 35 is provided. The weight support member 33 is fixed to the bed main body 1, has an annular body that is held in a horizontal posture, and supports the weight 31 placed on the annular body.

  When an earthquake exceeding a certain scale occurs, the weight support member 33 shakes greatly with the bed body 1. As a result, the weight 31 falls from the annular body of the weight support member 33. The gravity of the falling weight 31 is transmitted to the pin 17 through the string body 35. The string 35 is, for example, a rope or a flexible metal wire. The relay member 37 is fixed to the bed main body 1 in the same manner as the weight support member 33, has an annular body, and the string body 35 is inserted through the annular body. The relay member 37 converts the downward force acting on the string body 35 by the weight 31 into a horizontal force that pulls the pin 17 along the central axis 13. As will be described later, when the pin 17 located at the front portion of the recumbent base 3 is pulled, the pin 17 located at the rear portion of the recumbent base 3 is also pulled accordingly. As a result, the support state of the recumbent base 3 by the two pins 17 is released, and the recumbent base 3 descends to the inside of the box-shaped portion 7 of the bed main body 1 due to the gravity of the user and the recumbent user. Thereby, the user on the side table 3 is accommodated in a safe space surrounded by the box-shaped portion 7 on all sides. In order to increase the force transmitted by the weight 31 to the pin 17, it is desirable that the string body 35 is set to a length that normally bends. Thereby, after the earthquake 31 occurs and the weight 31 falls, the weight 31 pulls the pin 17 at a stage where the fall proceeds to some extent and the falling speed increases, so that the pin 17 exceeds the gravity of the weight 31. Fire power is granted.

  Due to the action of the four buffer mechanisms 39 erected on the floor 8 of the box-like portion 7 of the bed main body 1, the recumbent pedestal 3 is gently lowered while maintaining an approximately horizontal posture. The upper ends of the four buffer mechanisms 39 are connected to the vicinity of the four corners of the horizontal base 3. The lower end is supported on the floor 8 via a flexible rubber plate or the like (not shown) so as to allow the buffer mechanism 39 to be slightly inclined with respect to the floor 8. The structure of the buffer mechanism 39 will be described later with reference to FIG. The floor 8 may be a frame shape that supports the buffer mechanism 39, for example, instead of the plate-like body illustrated in FIG. The weight 31, the weight support member 33, the string body 35, and the relay member 37 correspond to a specific example of the earthquake detection unit of the present invention.

  The fallen object protection member 5 is arranged on the opening on the upper surface of the box-like part 7 separately on the left and right sides, and can be opened and closed. The fallen object protection member 5 is normally open and is located on both the left and right sides of the recumbent base 3 and covers the opening on the upper surface of the box-shaped portion 7 together with the recumbent base 3. The fallen object protection member 5 is connected to the recumbent table 3 by a string body 41 in the vicinity of both ends in the front-rear direction 11. As a result, as the recumbent pedestal 3 descends, the movement of the recumbent pedestal 3 is transmitted to the fallen object protection member 5 by the string 41, and the fallen object protection member 5 is closed. The string 41 is, for example, a rope or a flexible metal wire.

  Thus, with the occurrence of the earthquake, the horizontal bed 3 descends to the inside of the box-shaped part 7 of the bed body 1, so that the user on the horizontal bed 3 is surrounded by the box-shaped part 7 on all sides. While being housed in a safe space, the upper surface of the user is covered by the closed fallen object protection member 5. Thus, for example, when a lighting fixture attached to the ceiling of the room where the bed 1 is stationary falls, the user is protected from these falling objects. When a long heavy object such as a building structure falls, the fallen object is received by the upper edge of the box-shaped part 7, and the user who has been retreated inside the box-shaped part 7 is also protected. Is done. The structure of the falling object protection member 5 and the mechanism for driving the falling object protection member 5 will be described later with reference to FIGS.

  Doors 10 are formed on the wall bodies on both sides in the left-right direction 12 of the box-shaped portion 7. The door 10 can be opened and closed from the inside to the outside of the box-like portion 7. For this reason, it is possible to carry out the user evacuated inside the box-shaped part 7 by the hands of a caregiver or the like, and the user himself evacuates to the outside only by pushing the door 10. It is also possible. The door 10 may also be provided on the rear wall of the box-shaped portion 7.

  In the horizontal base 3, two grooves 43 are formed in the vicinity of both ends in the left-right direction 12 on the upper surface along the front-rear direction 11. A long member 45 is passed through the two grooves 43. The long member 45 is, for example, a rope or a flexible metal wire. The elongate member 45 may be strip-shaped. Both ends of the long member 45 are connected to the floor 8 of the box-like portion 7, and one end thereof is connected to the floor 8 through a spring 47. For this reason, the long member 45 along the groove 43 reciprocates in the front-rear direction 11 as the horizontal base 3 swings. The movement of the long member 45 on the groove 43 is used to drive a roller array, which will be described later, placed on the horizontal base 3.

  A blower 51 is further installed inside the storage unit 9. The blower 51 sucks air outside the bed main body 1 and sends the sucked air into the space below the bedside table 3, that is, the space inside the box-shaped portion 7. The air that has been sent is sent onto the bedside table 3 through the gap between the bedside table 3 and the fallen object protection member 5 or the bed body 1. The blower 51 has a built-in heater (not shown), and can send air at an appropriate temperature onto the bed table 3 even when the room temperature is cold. The air blower 51 also serves as the air blowing mechanism and the air temperature adjusting mechanism of the present invention. The blower 51 may incorporate a function of a cooler for cooling air, a function of a dehumidifier, or a function of an air purifier. A method of using the air sent onto the horizontal bed 3 will be described later with reference to FIGS. 9 and 10.

  FIG. 2 is an external perspective view illustrating the recumbent base 3 of FIG. 1 and members placed thereon. In the example of FIG. 2, pads 53, 55, 56, 57, and 59 are placed on the horizontal base 3, and a roller array 61 is further placed. These members press the user's body lying on the recumbent base 3, and increase the effect of preventing bedsores by giving changes to the body part to be pressed as the recumbent base 3 swings. Is. Preferably, as illustrated in FIG. 2, the pads 53, 55, 56, 57, 59 are laid in a range from the shoulder of the lying user to the buttock, and the roller array 61 is laid in the range of the leg. . Although not shown, preferably, a blanket or a thin mattress is laid on the pads 53, 55, 56, 57, 59 and the roller array 61, and the user lies on the pad. .

  Each of the pads 53, 55, 56, 57, 59 has a plurality of bags that can be arranged at different positions on the lying board 3. The pad 53 has two elongated bags, each extending in the left-right direction 12 and juxtaposed in the front-rear direction 11. The same applies to the pad 55. The pad 56 has ten bags, which are arranged in five rows in the left-right direction 12 and two rows in the front-rear direction 11. The pad 57 has eight bags, which are arranged in four rows in the left-right direction 12 and two rows in the front-rear direction 11. The pad 59 has four bags, which are arranged in two rows in the left-right direction 12 and two rows in the front-rear direction 11.

  The plurality of bags of each pad contain fluid inside and expand and contract according to the amount of fluid contained. Each bag is formed of, for example, a rubber or synthetic resin sheet. The plurality of bags in one pad communicate with each other through a narrow flow path that delays the movement of fluid due to a pressure difference. The constricted flow path is preferably provided with a check valve (not shown), and more preferably, the check valve also functions as a pressure valve that opens only when the back pressure exceeds a certain magnitude. The function and effect of the pad will be described in detail later. The fluid is preferably a liquid, more preferably a gel fluid, in order to enhance the effect of pressing and to facilitate the design of a narrow channel.

  The two long bags of the pad 53 communicate with each other through flow paths near both ends in the left-right direction 12. Each of the two flow paths is provided with a check valve so that the fluid can circulate through the two bags. The same applies to the pad 55. In the pad 56, 10 bags are communicated with each other through a flow path that forms a circulation path that circulates the entire body, and preferably, each flow path has a check valve that enables fluid to circulate in one direction. Is provided. Similarly, the pads 57 and 59 are communicated with each other by eight and four bags through a flow path forming a circulation path, and preferably a check valve is provided in each flow path.

  The roller array 61 has a large number of rollers 63 arranged in the front-rear direction 11. Each roller 63 has a cylindrical shape extending in the left-right direction 12. The direction of each roller 63 can be varied within a certain range, and the direction of each roller 63 also varies as the long member 45 reciprocates in the front-rear direction 11. Thereby, a change is brought about in the body part which each roller 63 presses. In order to change the direction of the long member 45 and to reduce the frictional force between the long member 45 and the groove 43 at both ends in the front-rear direction 11 of the groove 43 in which the long member 45 is disposed, A pulley 62 is provided.

  FIG. 3 is a partially enlarged perspective view illustrating a part of the side table 3 and the roller array 61 in an enlarged manner. In the example of FIG. 3, the roller array 61 has two rows of upper and lower rollers 63. The rotation shaft 67 of each roller 63 is supported by the bearing 65 at both ends in the left-right direction 12. In the example of FIG. 3, the bearing 65 has a plurality of plate-like members 69 each supporting the rotating shafts 67 of the upper and lower four rollers 63, and these plate-like members 69 rotate with each other through pins 71. It is linked movably. Thereby, the roller array 61 can be stored in a compact manner when not needed. The rotary shaft 67 may be fixed to the plate-like member 69, and the roller 63 may be slidably rotatable with respect to the rotary shaft 67. The rotary shaft 67 is fixed to the roller 63 and slid with respect to the plate-like member 69. Alternatively, the rotating shaft 67 may slide with respect to both the roller 63 and the plate-like member 69.

  The lower roller 63 rolls on the upper surface of the recumbent base 3, and the upper roller 63 rolls on the user's body or the lower surface of a blanket laid by the user. In order to facilitate rolling, each roller 63 is divided into a plurality of independently rotatable rollers along the left-right direction 12, and each of the divided rollers is rotatable with respect to the rotation shaft 67. You may slide. In order to simplify the structure of the roller array 61, the roller array 61 may have only one stage of rollers in the vertical direction.

  The bearing 65 supports the rotating shaft 67 with some play in the axial direction of the rotating shaft 67. For this reason, the roller 63 can change the extending direction within a certain angle range from the left-right direction 12. The bearing 65 further includes an engaging member 73 that engages with the long member 45. In the example of FIG. 3, the engaging member 73 has a plate-like base material 75 extending outward in the left-right direction 12 from one lower end of several plate-like members 69 connected to each other. The plate-like base material 75 is formed with a long hole 77 that opens along the opening of the groove 43. The plate-like substrate 75 is screwed with two regulating members 79 that adjust the substantial length of the long hole 77. The plate-like base material 75 is further formed so that a large number of screw holes are arranged along both sides of the long hole 77, whereby the screwing position of the regulating member 79 can be changed. . These screw holes and the regulating member 79 constitute one specific example of the “variable mechanism” of the present invention.

  An engaging member 81 is fixed in the middle of the long member 45 arranged at the bottom of the groove 43. The engaging member 81 is engaged with the engaging member 73 to transmit the reciprocating motion of the long member 45 along the groove 43 to the bearing 65. In the example shown in FIG. 3, the long member 45 is in the form of a rope or a wire, and the engaging member 81 is inserted through the long member 45 and grasps the long member 45 by the claw portion 85. It has a cylindrical body 83 fixed to the long member 45, and a protrusion 87 that protrudes upward from the cylindrical body 83. The roller array 61 is placed on the horizontal base 3 so that the protrusions 87 are inserted through the long holes 77 sandwiched between the two regulating members 79. The longer the portion of the long hole 77 sandwiched between the two restricting members 79, the more the engaging members 73 and 81 engage with each other with greater play. As the play increases, the bearing 65 reciprocates with a smaller amplitude with respect to the swing width of the reciprocating motion of the long member 45. In this way, by changing the position where the two regulating members 79 are screwed to the plate-like base material 75, the magnitude of play between the engaging members 73 and 81 can be changed. It is possible to change the amplitude of the 65 reciprocating motion. As a mechanism for changing the amount of play between the engaging members 73 and 81, various forms other than the form illustrated in FIG. 3 can be adopted, and in particular, it is possible to continuously change instead of stepwise. There will be readily understood by those skilled in the art.

  FIG. 4 is an operation explanatory diagram illustrating the operation of the roller array 61. 4 (a) and 4 (b) are right side views of relevant portions of the bed 101, and FIG. 4 (c) is a top view. 4A and 4B show only the long member 45 on the near side, that is, the right side in the drawing, of the two long members 45. In the state of FIG. 4 (a), the swinging pedestal 3 is tilted so that the right side is down and the left side is up. At this time, the spring 47 connected to the long member 45 contracts. For this reason, the engaging member 81 in the groove 43 has moved forward. Along with this, the right bearing 65 also moves forward. In the state of FIG. 4 (b), the swinging pedestal 3 is inclined so that the right side is up and the left side is down. At this time, the spring 47 extends. For this reason, the engaging member 81 in the groove 43 has moved backward. Along with this, the right bearing 65 also moves rearward. Of the two long members 45, the long side member 45 on the back side, that is, the left side in the drawing, moves in the opposite direction to the long side member 45 on the right side. Therefore, as illustrated in FIG. 4C, the left and right ends of the row of the rollers 63 of the roller array 61 move back and forth in opposite directions. The rollers 63 are supported by the bearings 65 with play so as to enable such movement.

  FIG. 5 is a perspective view illustrating a pad fixing mechanism that detachably fixes the pads 53, 55, 56, 57, and 59 shown in FIG. 2 to the recumbent base 3, and shows how the pad 59 is fixed as an example. Represents. The pad fixing mechanism illustrated in FIG. 5 has a hinge 89 biased in a closing direction by a spring (not shown). One blade 91 of the hinge 89 is screwed to the end surface in the left-right direction 12 of the horizontal platform 3. The other blade 93 is provided with a handle 95, and the blade 93 can be opened by holding the handle 95 with a finger. Each of the pads 53, 55, 56, 57, 59 has a sheet 97, and a plurality of bag bodies 99 are arranged on the sheet 97 by adhesion or the like. The sheet 97 has a width that substantially spans the entire width in the left-right direction 12 of the recumbent base 3, and the sheet 97 can be detachably fixed by sandwiching both ends thereof with the blades 93. The blades 93 press the sheet 97 against the upper surface of the horizontal base 3 by a spring (not shown) of the hinge 89.

  6 to 8 are schematic plan views illustrating various forms that the pads 53, 55, 56, 57, and 59 can take. Each of the illustrated pads has a plurality of (that is, two or more) bags 111 through FIGS. 6 to 8, and the inside of the plurality of bags 111 delays the movement of the stored fluid. The narrow channel 113 communicates with each other. The pad illustrated in FIG. 6A has two bag bodies 111 that communicate with each other through one narrowed channel 113. Each time the weight of the user is biased from one bag body 111 to the other bag body 111, the internal fluid moves from one to the other over time. Since the fluid does not move out immediately, the user's body will not receive much weight until then, but will receive a large pressing force for a while from the larger bag body 111 which has been inflated, and will eventually weaken. Become. When the weight of the user is biased from the other bag body 111 to the other bag body 111 again, the user's body is intensively subjected to a large pressing force for a while from the larger bag body 111, Eventually it will weaken. In this way, every time the weight deviation of the user's body applied to the two bags 111 fluctuates, the portion of the user's body that receives the pressing force fluctuates, and the pressing force itself weakens. It will change. For this reason, it is possible to effectively suppress bedsores caused by pressing the same part of the body.

  The pad illustrated in FIG. 6B has four bag bodies 111. The greater the number of bags 111, the more the portion of the user's body that receives the pressing force moves over a larger number of different portions, further improving the bed slip prevention effect. As illustrated in FIG. 6C, the constricted flow path 113 may be provided so as to form a circulation path that goes around all the bags 111. By forming the constricted flow path 113 in this way, the unevenness due to expansion and contraction is not repeated between some of the bag bodies 111, but it becomes easier to go around all the bag bodies 111. Such a circulation path can be formed when the pad has three or more bags 111.

  The pad illustrated in FIG. 6D has a form in which a check valve 115 is added to the narrowed channel 113 in the pad illustrated in FIG. The check valve 115 is installed so as not to prevent the fluid from entering and exiting all the bags 111. That is, the check valve 115 is installed so as not to cause a disadvantage that the fluid once flowing into a certain bag body 111 can no longer flow out of the bag body 111 and move to another bag body 111. By installing the check valve 115 in the constricted flow path 113, the fluid flows back even if the weight of the user varies after the fluid moves from one bag body 111 to another bag body 111. It is impossible to do so, and there is no choice but to move to another bag body 111. For this reason, the unevenness due to expansion and contraction is not repeated between some of the bag bodies 111 but easily spreads over all of the bag bodies 111. As illustrated in FIG. 6E, the effect is further enhanced by installing the check valve 115 in the constricted flow path 113 forming the circulation path. In this case, the fluid must move along a route that makes a round of all the bags 111. In FIG. 6D and FIG. 6E, the check valves 115 are installed in all the constricted flow paths 113. However, even when the check valves 115 are installed in some of the constricted flow paths 113, the corresponding effects are obtained. Demonstrate.

As illustrated in FIG. 7A to FIG. 7C, the interiors of the plurality of bag bodies 111 communicate with each other through two narrowed channels 113, and a check valve 115 is provided in one narrowed channel 113. May be installed. In this embodiment, the time required for the fluid to flow out from one bag body 111 to another bag body 111 due to the bias of the pressing force by the user's body and the backward movement due to the fluctuation of the pressing force bias are required. There is a difference between time. Even with such a configuration, the change in expansion and contraction is easily spread to all the bag bodies 111.
As illustrated in FIG. 8A to FIG. 8C, the interiors of the plurality of bags 111 communicate with each other through two constricted flow paths 113 and 114 having different ease of fluid flow, and both the constrictions. The check valves 115 may be installed in the flow paths 113 and 114 so as to be opposite to each other. Even in this configuration, the time required for the fluid to flow out from one bag body 111 to another bag body 111 due to the bias of the pressing force caused by the user's body and the bias pressure biased fluctuate to return. There is a difference between the time required. Therefore, even with such a configuration, the expansion / contraction change is easily spread to all the bag bodies 111.

  In each pad illustrated in FIGS. 6D, 6 </ b> E, 7 </ b> A to 7 </ b> C, and 8 </ b> A to 8 </ b> C, the check valve 115 may function as a pressure valve. More desirable. The check valve 115 having a pressure valve function does not open when the difference in pressure to flow the fluid in the forward direction of the check valve 115 does not exceed a certain magnitude, and allows the fluid to flow even in the forward direction. Absent. When the check valve 115 has the function of such a pressure valve, the degree of expansion and contraction of the bag body 111 is increased. As a result, the user's floor slip prevention effect is further improved.

  Each of the pads illustrated in FIG. 6 to FIG. 8 may be one that seals the whole of the plurality of bags 111 that communicate with each other so that the fluid cannot be taken in and out. It may be configured such that the fluid can be supplied and discharged through. The fluid may be a gas having a low density and viscosity. However, as described above, in the case of a liquid having a high density and viscosity, the constricted flow paths 113 and 114 for delaying the movement of the fluid can be easily configured. There is an advantage that it is particularly easy to construct for a gel-like fluid having a higher viscosity. Moreover, it is desirable that the fluid is a high-density liquid or a gel-like fluid in that the effect of pressing a part of the user's body is high.

  The degree to which the movement of the fluid by the constricted flow paths 113 and 114 is delayed is the time for the target fluid to substantially flow out from one bag body 111 to another bag body 111 due to the weight of the user's body. Is set to be 5 minutes or longer in order to enhance the effect of preventing bed slip. This is because if the time for which the fluid moves is excessively short, fluctuations occur in the bias of the body load, so that a sufficient time is not secured for the body to receive a pressing force from the bag body 111 different from before. Moreover, it is desirable that the time for which the fluid has substantially flowed out is within 12 hours. This is because, if the time for which the fluid moves is excessively long, the same part is close to a state where it receives a pressing force for a long time, and the significance of using the pad is diminished. The time is preferably 10 minutes or longer, more preferably 30 minutes or longer, further 1 hour or longer, further 2 hours or longer, and further 4 hours or longer. The time is preferably within 8 hours, and more preferably within 6 hours.

  FIG. 9 is a perspective view illustrating the overall appearance of the bed 101 illustrated in FIG. 1. As illustrated in FIG. 9, the bed 101 further includes a cover 121. The cover 121 covers the top of the recumbent base 3 while keeping a distance from the user lying on the recumbent base 3. For example, the main part is made of a flexible synthetic resin sheet. In the example of FIG. 9, the cover 121 is put on a frame 123 attached to the bed main body 1 for use, so that the distance from the user is maintained. The cover 121, combined with the function of the blower 51 (see FIG. 1), enables a user lying on the bedside table 3 to be wrapped with air at an appropriate temperature without a futon. Thereby, even if there is a long-term continuous use, it is possible to suppress the occurrence of stuffiness or rash on the user's body.

  The cover 121 can be attached to the bed main body 1 or removed from the bed main body 1. The cover 121 is removed from the bed body 1 when the user is lying on the bedside 3 or, conversely, when the user lying on the bedside 3 is taken out of the bed 101. The frame 123 itself is detachably attached to the bed main body 1, and the frame 123 can be removed together with the cover 121. Fasteners 125 are provided on the left and right sides and the rear side of the cover 121. A part of the cover 121 is opened by lifting the slider (not shown) of the fastener 125 and releasing the closed state of the fastener 125 when, for example, caring or nursing a user lying on the lying base 3. Can do. Thus, the cover 121 can be opened and closed.

  FIG. 10 is a diagram illustrating the appearance and structure of the cover 121, (a) is a schematic external perspective view of the cover 121 as viewed from the front right side, and (b) and (c) are drawings showing the cover 121 on the bed body 1. It is an expanded sectional view which illustrates the mechanism to attach. As illustrated in FIG. 10 (a), the cover 121 has a left and right side and a rear side that are slightly larger than the front side so that the left and right side walls of the bed body 1 and the vicinity of the upper end of the rear wall can be covered. It extends downward for an extra minute. The left and right sides of the cover 121 and the part extending downward on the rear side are wound with a long plate-like permanent magnet 127 so as to illustrate the cross-sectional structure viewed in the direction of the arrow 124 in FIG. Hold. Due to the magnetic force of the permanent magnet 127, the left and right sides of the cover 121 and the lower end of the rear side of the cover 121 can be attracted to the outer surfaces of the box-shaped portion 7 of the bed body 1 near the upper and lower side walls. A long plate-like permanent magnet 127 is also held in the vicinity of the lower end portion on the front side of the cover 121 so as to exemplify the cross-sectional structure viewed in the direction of the arrow 126 in FIG. The lower end portion of the front side of the cover 121 can be attracted to the upper end surface of the front wall of the box-shaped portion 7 of the bed body 1 by the magnetic force of the permanent magnet 127. If the box-shaped part 7 is made of a ferromagnetic material as in the case of being made of steel, the permanent magnet 127 can be attracted to the box-shaped part 7. If the box-like portion 7 is made of a non-magnetic material as in the case of being made of wood, a ferromagnetic plate or sheet such as steel is attached to the portion where the permanent magnet 127 is to be attracted. The body may be fixed by sticking or screwing. The permanent magnet 127 is convenient for handling if it is a lightweight and flexible material such as a rubber plate. In addition, between the lower end part area | regions of the cover 121 separated from each other by the fastener 125, the permanent magnet 127 is also separated from each other so that the cover 121 can be opened and closed.

  11A and 11B are cross-sectional views of the bed 101, where FIG. 11A is an overall cross-sectional view, and FIG. 11B is an enlarged cross-sectional view. The air sent out by the blower 51 flows from the storage portion 9 to the box-shaped portion 7, and further flows to the upper side of the horizontal bed 3 through the gap between the horizontal bed 3, the fallen object protection member 5 and the box-shaped portion 7. When the cover 121 is installed on the horizontal bed 3, the inside of the cover 121 is filled with the air sent out by the blower 51.

  Of the two front and rear pins 17 that support the bedside table 3 in a swingable manner, the front pin 17 is slidable in a through hole 128 formed in the front wall of the box-like portion 7. And is slidably inserted into a through hole 130 formed in the front end portion of the horizontal base 3. Thereby, the front end part of the horizontal base 3 is supported. The rear pin 17 is slidably inserted into a hole 132 formed in the upper end portion of the rear wall of the box-shaped portion 7, and slides in a through hole 133 formed in the rear end portion of the horizontal base 3. It is inserted as possible. Thereby, the rear end part of the horizontal base 3 is supported. The two pins 17 are connected by an engaging member 129 and a connecting rod 131. The engaging member 129 is slidably inserted into the through hole 130 of the horizontal paddle 3 together with the front pin 17 and is engaged with each other by both hook-shaped end portions 135 and 137. For example, a front end portion of a connecting rod 131 made of, for example, metal is connected to the engaging member 129, and a rear end portion of the connecting rod 131 is connected to the rear pin 17. The engaging member 129 corresponds to a specific example of the “engaging member” of the present invention, and the connecting rod 131 and the engaging member 129 correspond to a specific example of the “connecting member” of the present invention.

  When an earthquake exceeding a certain strength occurs and the weight 31 falls from the weight support member 33, the striking force of the falling weight 31 is transmitted to the front pin 17 through the string body 35 and the relay member 37. The pin 17 is pulled forward. As a result, the front pin 17 comes out of the through hole 130 of the horizontal base 3. At the same time that the pin 17 comes out of the through-hole 130, the hook-shaped end portions 135 and 137 are exposed in the gap 139 between the front end portion of the horizontal platform 3 and the front wall of the box-shaped portion 7. At this time, the engagement state of the hook-shaped end portions 135 and 137 is released by the weight of the horizontal bed 3 or the weight of the horizontal bed 3 and the user lying on the horizontal bed 3 and the front end of the horizontal bed 3 is supported. Lose.

In order to allow the engagement state of the hook-shaped end portions 135 and 137 to be released by the weight of the horizontal platform 3 or the like, the front pin 17 and the engagement member 129 are disposed in the through holes 128 and 130. The rotational movement of is restricted. For example, the through hole 128 or 130 may be a circular hole with a groove extending in the axial direction, and the front pin 17 or the engaging member 129 may be a cylinder having a protrusion that slides in the groove.
A locking protrusion 141 is formed on a part of the peripheral surface of the engaging member 129. The locking protrusion 141 is engaged with the engaging member 129 so that the hook-shaped end portions 135 and 137 stop in the gap 139 when the front pin 17 is pulled out from the through hole 130 by the impact force of the falling weight 31. Is for locking to the horizontal base 3. The locking protrusion 141 locks the engaging member 129 to the horizontal base 3 by contacting the opening edge of the through hole 130 of the horizontal base 3.

  When the front pin 17 is pulled out from the through hole 130 due to the impact force of the falling weight 31, the movement of the front pin 17 is directly transmitted to the rear pin 17 by the engagement member 129 and the connecting rod 131. . The length of the connecting rod 131 is adjusted so that when the front pin 17 removes the through hole 130 of the horizontal base 3, the rear pin 17 removes the hole 132 of the rear wall body of the box-like portion 7. Yes. Therefore, when the front end portion of the recumbent base 3 loses support, the rear end portion of the recumbent base 3 also loses support. As a result, the horizontal platform 3 tends to fall naturally. The low-speed motor 19 is installed at a position that is retracted forward from the position immediately below the horizontal base 3 so that the downward movement of the horizontal base 3 is not hindered. The connecting rod 131 may have an adjustment mechanism that enables fine adjustment of the length. As the adjustment mechanism, a well-known structure that adjusts the length of the rod-shaped body can be employed.

  As shown in FIG. 11 (a) by enlarging a part thereof, an annular, for example, annular spacer 401 surrounding the rear pin 17 is provided on the rear end portion of the horizontal base 3 and the rear wall of the box-like portion 7. Placed between the body. A screw washer can be diverted to the spacer 401. As illustrated in FIG. 11 (b), a compression spring 403 is disposed so as to surround the front pin 17 in the gap 139 between the front end portion of the horizontal base 3 and the front wall body of the box-like portion 7. Is done. Due to the elastic restoring force of the compression spring 403, the horizontal base 3 is always urged backward. Thereby, the gap 139 is maintained at a constant size. Since the spacer 401 is interposed between the rear end portion of the horizontal base 3 and the rear wall of the box-shaped portion 7, the horizontal base 3 is biased toward the rear wall of the box-shaped portion 7. However, the recumbent base 3 can swing while restraining the frictional force between itself and the rear wall of the box-shaped part 7 to be small. Further, the compression spring 403 does not prevent the engaging member 129 from coming off from the front pin 17 and the horizontal base 3 falling when an earthquake is detected.

  FIGS. 12A and 12B are operation explanatory views illustrating the swinging of the horizontal base 3 and the closing process of the falling object protection member 5. FIG. 12A is a front view illustrating the normal operation, and FIG. 12B is the normal operation. The top view which illustrates operation | movement, (c) is a front view which illustrates the operation | movement accompanying an earthquake occurrence. As illustrated in FIG. 12A, the recumbent base 3 swings around the pin 17 as the low-speed motor 19 repeats normal rotation and reverse rotation. One end of two string bodies 41 is connected to the bottom of the front end portion of the recumbent base 3, and the other end is connected to the front end portion of the fallen object protection member 5 arranged separately on the left and right. Yes. Although not shown in FIGS. 12A and 12B, one end of another two cords 41 is connected to the bottom of the rear end portion of the horizontal base 3, and the other ends thereof are left and right. It is connected to the rear end part of the fallen object protection member 5 arranged separately.

  As the pin 17 comes off, when the recumbent base 3 descends, the string 41 connected to the recumbent base 3 is pulled downward. The string 41 is relayed by the relay member 143 in order to convert the downward movement of the string 41 into the movement in the left-right direction 12 that closes the falling object protection member 5 toward the center. The relay member 143 is, for example, a “U” -shaped metal fitting, and is fixed to the front wall of the box-shaped portion 7. As a result, the falling object protection member 5 is closed as the recumbent base 3 descends. The falling object protection member 5 is, for example, a curtain shape having a core material that can receive a falling object, and can be opened and closed freely. Since the belt 23 hung on the pulley 21 of the low-speed motor 19 is loosened as the recumbent base 3 descends, the retreat of the recumbent base 3 is not hindered. FIG. 12C shows an example in which the belt 23 is wound around the pulley 21 one or more times. The string body 41 and the relay member 143 correspond to a specific example of the “closed drive mechanism” of the present invention.

  13A and 13B are diagrams illustrating the buffer mechanism 39, where FIG. 13A is an operation explanatory diagram illustrating the operation of the buffer mechanism 39, and FIG. 13B is a cross-sectional view of the buffer mechanism 39. The buffer mechanism 39 illustrated in FIG. 13 has both functions of an oil damper and an air damper, and has multistage cylinders that are nested in each other so as to be telescopic. Yes. The insides of these cylinders communicate with each other through a small hole. For example, when all the other cylinders are housed in the outermost cylinder, when the shock absorbing mechanism 39 is in the most contracted state, the amount of oil 145 that fits inside all the cylinders is reduced. It is filled inside. A minute ventilation hole (not shown) that allows air to enter and exit is provided at the top of the innermost cylinder. Accordingly, as illustrated in FIG. 13A, the buffer mechanism 39 functions as an air damper and follows the movement of the recumbent base 3 during normal times when the recumbent base 3 swings. Since the swinging speed of the horizontal base 3 is slow, the buffer mechanism 39 applies almost no extra load to the low-speed motor 19.

  When the horizontal bed 3 loses support by the pins 17 and tries to fall naturally, the buffer mechanism 39 first functions as an air damper, and the falling speed of the horizontal bed 3 is reduced. When the buffer mechanism 39 contracts to a predetermined length determined by the amount of the oil 145, the oil 145 functions as an oil damper, and the descending speed of the horizontal platform 3 is further relaxed. Therefore, when the horizontal base 3 loses support by the pins 17, as illustrated in FIG. 13A, even if the horizontal base 3 is inclined, Return posture to approximately horizontal. Thereafter, the horizontal platform 3 descends gently and stops when the buffer mechanism 39 reaches its minimum length. In this way, the buffer mechanism 39 enables the recumbent pedestal 3 to descend more slowly than the natural fall speed in a substantially horizontal posture. Therefore, the impact and discomfort experienced by the user as the recumbent base 3 descends are alleviated or eliminated.

  14A and 14B are diagrams illustrating the fallen object protection member 5. FIG. 14A is a front view of the fallen object protection member 5, FIG. 14B is a perspective view of a part of the fallen object protection member 5, and FIG. 3 is a perspective view illustrating a part of a mechanism for guiding an object protection member 5. FIG. The falling object protection member 5 illustrated in FIG. 14 has a shape in which a large number of core members 151 are connected by a flexible sheet-like body 153. The core material 151 has a long plate shape, and is mainly formed of a light alloy or wood, for example. The sheet-like body 151 is, for example, a cloth or a flexible synthetic resin sheet, and connects between the upper end portions of the core material 151. Among the many core materials 151, the core material 152 closest to the center portion is connected to the adjacent core material 154 at the upper ends by a rigid connection plate 159 instead of the sheet-like body 151. The string 41 is connected not to the core member 152 closest to the center but to the core member 154 arranged second from the center. The core material 152 is formed with a notch 161 to avoid interference with the string body 41. A roller 155 is rotatably supported near the upper end of both end surfaces along the longitudinal direction of the core material 151, that is, the front-rear direction 11. The roller 155 fits in a guide groove 157 formed in the front wall body and the rear wall body of the box-shaped portion 7 and rolls while being guided by the guide groove 157.

  FIG. 15 is a plan view illustrating a part of the falling object protection member 5. FIG. 16 is a side cross-sectional view illustrating a part of the fallen object protection member 5. As illustrated in FIGS. 15 and 16, one end of the string body 41 is connected to the bottom surface of the end portion along the front-rear direction 11 of the horizontal base 3, and the middle is fixed to the wall body of the box-shaped portion 7. The other end of the relay member 143 is connected to the core member 154. The relay member 143 is installed near the center in the left-right direction 12, that is, near the pin 17. Accordingly, when the horizontal platform 3 is lowered, the movement is transmitted to the core member 154 through the string body 41 so as to draw the core member 154 toward the center. When the recumbent base 3 is accommodated in the box-shaped part 7 and the descent is stopped, the core materials 152 closest to the center of the fallen object protection member 5 arranged separately on the left and right sides are in contact with each other. That is, the falling object protection member 5 is closed. Since the string body 41 is connected not to the core material 152 closest to the center but to the adjacent core material 154, it exerts a force in the closing direction on the falling object protection member 5 until the falling object protection member 5 is closed. be able to.

  Since the core member 154 has a plate shape that is suspended by a roller 155 supported by the guide groove 157, the core member 154 has a certain width in the vertical direction. For this reason, the user on the horizontal base 3 that is sinking under the blocked fallen object protection member 5 is protected from fallen objects such as lighting fixtures from the ceiling or the like of the room where the bed 101 is installed. Moreover, since the adjacent core materials 151 are connected by the sheet-like body 151, the user is protected from falling objects or scattered objects having a relatively small size, such as broken glass.

  FIG. 17 is a schematic explanatory view illustrating another mechanism for driving the roller array 61 shown in FIG. FIGS. 17A and 17B are right side views of related portions of the bed 101 and correspond to FIGS. 4A and 4B described above. In the example of FIG. 17, both ends of the long member 45 are connected to the floor 8 through springs 163 and 165, respectively. The spring coefficients of the springs 163 and 165 are set to be different from each other. Therefore, as illustrated in FIGS. 17A and 17B, the long member 45 reciprocates in the front-rear direction 11 with the swinging of the horizontal base 3. However, compared with the case where the spring is connected to only one end of the long member 45, both the springs 163 and 165 expand and contract, so that the amplitude of the reciprocating motion of the long member 45 becomes small. The closer the spring coefficients of the springs 163 and 165 are, the smaller the amplitude of the long member 45 is. Therefore, by appropriately setting the spring coefficients of the springs 163 and 165, the amplitude of the reciprocation of the long member 45 can be set to an appropriate size. In the example of FIG. 17, the spring coefficient of the rear spring 165 is set to be larger (that is, less likely to extend) than that of the front spring 163.

  FIG. 18 is a cross-sectional view illustrating a check valve included in the pad illustrated in FIGS. 6 to 8. The check valve illustrated in FIG. 18A has a spherical valve body 203 and a spring 205 that presses and urges the valve body 203 against the valve seat 201 in a part of the constricted flow path 113. . The fluid can flow in the forward direction by pushing the valve body 203 against the pressing force of the spring 205, but the flow in the reverse direction is blocked. By setting the pressing force of the spring 205 sufficiently weak, the fluid can flow in the forward direction even when there is substantially no pressure difference. On the contrary, by setting the pressing force of the spring 205 to a certain degree, the check valve can be given the function of a pressure valve.

  The check valve illustrated in FIG. 18B has a tapered tube 207 in a part of the constricted flow path 113. As an example, the tube 207 is formed integrally with a tube forming the narrowed channel 113 and is made of a flexible resin or rubber. For a forward flow in which the fluid pressure acts as the internal pressure of the tube 207, the narrow tip of the tube 207 opens and does not impede the fluid flow. On the other hand, for the flow in the reverse direction, the fluid pressure acts as the external pressure of the tube 207, so the narrow tip of the tube 207 is blocked to block the fluid flow.

  FIG. 19 is a diagram illustrating a mechanism for adjusting the width of the constriction flow path of the pad illustrated in FIGS. 6 to 8. By adjusting the width of the narrow channel, the degree of delay of fluid movement can be adjusted. 19 includes a clip 210, FIG. 19A is a front view showing the structure of the clip 210, and FIG. 19B is a perspective view showing a usage form of the clip 210. FIG. . The clip 210 adjusts the width of the narrow channel 113 formed inside the connecting portion 217 by sandwiching the connecting portion 217 that connects the bag bodies 215 and 216.

  The clip 210 has two leg portions 213 that can be opened and closed around a fulcrum, and a nut 212 that is screwed into a male screw 211 formed on a side surface in the opening direction near the tip of the leg portion 213. ing. The male screw 211 is formed so as to increase in diameter as it is closer to the fulcrum. For this reason, as the nut 212 is rotated, the leg 213 moves in a closing direction while being minute as it approaches the fulcrum. Thereby, the narrow channel 113 of the connecting portion 217 sandwiched between the leg portions 213 becomes narrower. For example, the connecting portion 217 is integral with the bag bodies 215 and 216 and is made of a flexible material such as resin or rubber. For this reason, it is possible to adjust the width of the constriction flow path 113 by the opening degree of the leg part 213. A large rotation amount of the nut 212 is converted into a small movement amount along the leg portion 213, and the nut 212 moves along the leg portion 213, thereby further changing the opening degree of the leg portion 213. As described above, the clip 210 converts a large change amount of the rotation angle applied to the nut 212 by a manual operation into a minute change amount of the width of the constriction flow path 113. A slight difference in the width of the narrow channel 113 greatly affects the delay amount of the fluid flow. Therefore, by using the clip 210, it becomes possible to easily adjust the delay amount of the fluid flow. As illustrated in FIG. 19B, the nut 212 is formed in an elongated shape, so that when the clip 210 is placed on the horizontal base 3 together with the bags 215 and 216, the nut 212 is used. Can be prevented from rotating. It is desirable to cover the clip 210 with a cushioning material such as a flexible mat so that the clip 210 does not give the user a sense of incongruity as a foreign object.

  FIG. 20 is a diagram illustrating another example of the buffer mechanism that replaces the buffer mechanism 39 illustrated in FIG. 13. 20A is a top view of the rear part of the bed, FIG. 20B is a cross-sectional view taken along the line AA, and FIG. 20C is a cross-sectional view taken along the line BB. 21 is an enlarged view showing a part of the buffer mechanism illustrated in FIG. 20, and FIG. 21 (a) is a perspective view of a recumbent base receiving member for receiving a recumbent base to be dropped, and FIG. 21 (b). ) Is an external view of a horizontal bed as seen from the rear along the line CC in FIG. This shock absorbing mechanism flexibly receives the recumbent table 3 whose support state has been released due to the occurrence of an earthquake by the springs 233 and 243 so as to maintain a substantially horizontal posture. Although illustration is omitted, a buffer mechanism similar to the mechanism shown in FIGS. 20 and 21 is also provided in the front part of the bed.

  The springs 233 and 243 are disposed inside a cavity 231 formed at the upper end of the rear wall 221 of the box-shaped portion 7 (see FIG. 1). The cavity 231 is provided in the rear part of the guide groove 239 of the roller 155 (refer FIG. 14) of the falling object protection member 5 as an example. One end of each of the springs 233 and 243 is fixed to the rear wall 221, and the other end is connected to the horizontal base receiving members 261 and 251 through wires 235 and 245 and pin-shaped fastening members 265 and 255. The wires 235 and 245 are wound around pins 237 and 247 fixed to the rear wall 221 in order to change the extending direction from horizontal to vertical. The recumbent base receiving members 261 and 251 are loosely screwed to the rear wall 221 by screws 263 and 253 to such an extent that they can be removed by receiving the recumbent base 3 and the weight of the user.

  Plate-like members 225 and 223 are attached to the rear end portion of the horizontal base 3 so that the horizontal base 3 is received by the horizontal base receiving members 261 and 251 when the support state is released. The plate-like members 225 and 223 protrude downward from the horizontal base 3. The lower end portions of the horizontal bed receiving members 261 and 251 have a pocket shape so as to receive and not remove the plate-like members 225 and 223. Further, as illustrated in FIG. 21A, a notch 267 is formed at the top of the horizontal base receiving members 261 and 251, and the screws 263 and 253 are inserted into the notch 267. For this reason, by tightening the screws 263 and 253 moderately and loosely, the weight rest receiving members 261 and 251 that have received weight are easily detached from the rear wall 221 and are suspended by the wires 235 and 245.

  The lower ends of the horizontal base receiving members 261 and 251 are arranged so that the horizontal positions of the plate-like members 225 and 223 when the horizontal base 3 is in a horizontal state are not interfered with the plate-like members 225 and 223 even if the horizontal base 3 swings. It is located below the lower end. When the support state of the horizontal base 3 is released due to the occurrence of an earthquake, the plate-like members 225 and 223 fixed to the horizontal base 3 are received by the horizontal base receiving members 261 and 251. When the weight is added, the horizontal base receiving members 261 and 251 are fixed to the rear wall 221 by the screws 263 and 253 and are suspended by the wires 235 and 245. Since the wires 235 and 245 are connected to the springs 233 and 243, the horizontal base 3 is flexibly received by the elastic restoring force of the springs 233 and 243. Moreover, the recumbent base 3 is received by the elastic restoring force of the springs 233 and 243 so as to maintain a substantially horizontal posture. As described above, similarly to the buffer mechanism 39 illustrated in FIG. 13, the buffer mechanism illustrated in FIGS. 20 and 21 also has the recumbent base 3 in a substantially horizontal posture and more slowly than the natural fall speed. And can be lowered by the weight of the bedside 3.

  FIG. 22 is a schematic perspective view illustrating a bedside table included in a bed obtained by adding another function to the bed illustrated in FIG. 1 and members placed thereon. A pad 310 is disposed on a recumbent table 303 included in the bed 102. In the example of FIG. 22, four pads 310 are arranged. Each pad 310 has a plurality of bags that can be arranged at different positions on the recumbent base 3 in the same manner as the pads 53, 55, 56, 57, 59 already exemplified. FIG. 22 shows an example in which each pad 310 has two bags. The plurality of bags of the pad 310 contain a fluid inside and expand and contract according to the amount of fluid contained. Each bag is formed of, for example, a rubber or synthetic resin sheet. The plurality of bags of the pad 310 communicate with each other through the flow path 300. The channel 300 is made of a flexible material such as rubber or synthetic resin so that it can be closed by being sandwiched from the outside. The flow path 300 may be a narrow flow path that delays the movement of the fluid, similarly to the narrow flow paths 113 and 114 of the pads 53, 55, 56, 57, and 59. The fluid is preferably a liquid, and more preferably a gel fluid, in order to enhance the effect of pressing.

  The horizontal bed 303 has a structure in which a mechanism for opening and closing the flow path 300 of the pad 310 in synchronization with the swinging of the horizontal bed 303 is added to the horizontal bed 3 illustrated in FIG. This mechanism enables the fluid sealed in the pad 310 to move from the bag body to the bag body in accordance with the swinging cycle of the horizontal base 303. A removable cover body 305 is provided on the upper surface of the recumbent base 303, and the flow path 300 of the pad 310 is passed under the cover body 305.

  As illustrated in FIG. 2B, it is also possible to provide a fall prevention wall 302 on both sides of the recumbent base so that the user does not fall off the recumbent base with the inclination of the recumbent base 303. In addition, a covering cloth 304 may be laid so as to cover the pad 300, and a hook-and-loop fastener 306 may be attached to the top face of the covering cloth 304. By attaching hook-and-loop fasteners to the corresponding parts of the clothes worn by the user and fixing the hook-and-loop fasteners together, excessive movement and falling of the user's body due to the swinging of the bedside 303 is prevented. can do. The flooring 304 is detachably fixed to the horizontal base 3 by a fixing member (not shown) such as a hook-and-loop fastener.

  23 and 24 are cross-sectional views of a part of the bed 102 along the front-rear direction 11 and the left-right direction 12, respectively, showing the lid 305 and the structure below it. 25 is a partial top view (FIG. 25 (a)) and a partial perspective view (FIG. 25 (b)) of the recumbent base 303. In the perspective view of FIG.25 (b), the shape of the recumbent base 303 which removed the cover body 305 is shown. 23 is a cross-sectional view taken along the line DD shown in FIG. 25A, and the cross-sectional view of the horizontal bed 303 shown in FIG. 24 is taken along the line EE. FIG.

  As shown in FIGS. 23 to 25, a through hole 307 that penetrates from the upper surface to the lower surface is formed in the horizontal base 303. The through-hole 307 is formed in a portion where the flow path 300 of the pad 310 is located, and has, for example, a substantially rectangular shape in a plan view that is wide in the front-rear direction 11 and narrow in the left-right direction 12. The upper surface opening of the through hole 307 is detachably covered with a lid 305. As an example, the upper surface of the lid 305 is flush with the upper main surface of the recumbent base 303 so as not to give the user a feeling of unevenness. The upper part of the inner wall of the through hole 307 is inclined so as to stably support the lid 305. In addition, recessed recesses 308 and 309 (see FIGS. 24 and 25) are formed in the center portion of the front-rear direction 11 at the upper part of the inner wall on both sides in the left-right direction 12 of the through-hole 307. The recesses 308 and 309 are open on the upper surface of the horizontal base 303 on both sides of the lid 305 in the left-right direction 12. The flow path 300 of the pad 310 can enter under the lid body 305 through the recesses 308 and 309. The concave portions 308 and 309 also function as gaps for gripping the lid body 305 when the lid body 305 is attached and detached.

  The lid body 305 is provided with two guide bars 311 arranged in the front-rear direction 11 so as to protrude downward from the lower surface thereof. In the example of FIGS. 23 and 24, the upper end of the guide bar 311 is screwed into the lid 305. A pressing member 313 is slidably guided by these guide bars 311. A spring 315 is further guided to the guide rod 311 below the pressing member 313. The lower end of the spring 315 is supported by a support member 317 provided at the lower end of the guide bar 311. In the example of FIGS. 23 and 24, the support member 317 is a nut screwed into the lower end portion of the guide bar 311. The spring 315 whose lower end is supported by the support member 317 urges the pressing member 313 upward. The flow path 300 of the pad 310 passed under the lid body 305 is sandwiched between the lid body 305 and the pressing member 313 and further biased by the spring 315 so as to be closed.

  A connecting member 319 having an annular portion is attached to the lower surface of the pressing member 313, and one ends of the string bodies 321 and 329 are connected to the connecting member 319. The string bodies 321 and 329 are, for example, ropes or wires. A relay member 323 having an annular portion and a locking member 331 are attached to the bed floor 8. The string body 321 is relayed by being loosely inserted into the annular portion of the relay member 323. The other end of the string body 321 is connected to the recumbent base 303. The string body 329 is locked to the floor 8 by connecting the other end to the locking member 331 without using a relay member. When the string bodies 321 and 329 are in a loose state or removed, the pressing member 313, the guide bar 311 and the like are also lifted together by lifting the lid body 305. That is, the pressing member 313, the guide rod 311 and the like can be detached from or attached to the recumbent base 303 simultaneously with the lid 305.

  FIG. 26 is an operation explanatory view illustrating the operation of the pressing member 313 accompanying the swinging of the recumbent base 303. As shown in FIG. 26 (a), one end and the other end of the string body 321 are located on the opposite sides of the lateral direction 12 with the central axis 13 that is the swing axis of the horizontal base 303 interposed therebetween. Connected to the connecting member 319 and the recumbent base 303, respectively. Moreover, the distance 325 from the central axis 13 to one end and the distance 327 from the central axis 13 to the other end are not the same, and the distance 327 is set longer. One end and the other end of the string body 329 are connected to the connecting member 319 and the locking member 331 as described above. Since it is configured in this manner, as shown in FIG. 26 (b), when the recumbent base 303 is tilted beyond a predetermined angle so that the pressing member 313 is lifted, the string body 329 is pulled. As a result, the string member 329 pulls down the pressing member 313 against the drag of the spring 315 due to the tension. When the pressing by the pressing member 313 is released, the closed flow path 300 is opened. As a result, the fluid sealed in the pad 310 flows from one bag body to another through the flow path 300.

  When the inclination angle of the recumbent base 303 returns to a predetermined angle or less, the flow path 300 is closed again by the biasing force of the spring 315. As shown in FIG. 26 (c), conversely, when the recumbent base 303 is tilted beyond a predetermined angle so that the pressing member 313 sinks, the string body 321 is now pulled. As a result, the string body 321 pulls down the pressing member 313 against the drag of the spring 315 due to the tension. When the pressing by the pressing member 313 is released, the closed flow path 300 is opened. As a result, the fluid sealed in the pad 310 flows so as to return from the other bag body to the original bag body through the flow path 300. As described above, in the bed 102, the fluid sealed by the pad 310 moves so as to reciprocate from the bag body to the bag body in accordance with the swinging cycle of the horizontal bed 303. The predetermined inclination angle of the recumbent base 303 for opening the flow path 300 is desirably set to a magnitude close to the maximum inclination angle of the swing. By appropriately setting the lengths of the strings 321 and 329, the predetermined angle can be set to a desired size. By providing a known member for adjusting the lengths of the string bodies 321 and 329, the predetermined angle can be easily adjusted.

The pad 310 may have three or more bags. Further, the pad 310 may have a plurality of flow paths 300. It is also possible to configure the bed 102 so that each of the plurality of channels 300 is opened and closed by the holding member 313. The pad 310 may be a whole of a plurality of bags that communicate with each other so that the fluid cannot be taken in and out, and has a fluid stopper, and fluid can be supplied and discharged through the fluid stopper. It may be configured as such.
(Other embodiments)

  FIG. 27 is an enlarged cross-sectional view illustrating a modified example of the horizontal base support mechanism and the earthquake detection unit illustrated in FIG. 11. In this example, a flange 411 is provided in a portion of the front pin 17 that protrudes forward of the front wall of the box-shaped portion 7. A compression spring 413 is disposed between the front wall of the box-shaped portion 7 and the flange 411 so as to surround the pin 17. The compression spring 413 biases the rear pin 17 (see FIG. 11) through the front pin 17 and further through the engagement member 129 and the connecting rod 131 so as to slide forward. On the front surface of the front wall of the box-shaped portion 7, for example, a hook-shaped locking member 415 is provided so as to be rotatable up and down. The locking member 415 abuts against the front surface of the flange 411 in the normal rotation position shown in FIG. 27 and stops excessive protrusion of the pin 17. Thereby, the front and rear pins 17 hold their normal positions.

  One end of a string body 417 such as a metal wire is connected to the locking member 415. The string body 417 changes its extending direction, for example, via pulleys 419 and 421 as a relay member, and the other end is connected to the weight 31. It is desirable that some looseness is secured to the string body 417. The front pin 17 is also connected to the weight 31 through the string body 35. The extending direction of the string 35 is changed by, for example, a pulley 423 as a relay member. The string body 35 is also provided with a slack, and it is desirable that the slack be secured larger than the string body 417.

  27 is configured as described above. When the weight 31 falls from the weight support member 33 due to the occurrence of an earthquake exceeding the specified level, the string body is firstly connected. 417 becomes a tension state, and the locking member 415 is rotated upward. As a result, the pin 17 is released from the locked state and slides forward due to the elastic restoring force of the compression spring 413. As a result, the support state of the horizontal base 3 by the two front and rear pins 17 is released by the same mechanism as described with reference to FIG. 11, and the horizontal base 3 falls. In order to ensure the sliding of the pin 17 after the locking by the locking member 415 is released, a force directed forward is also generated by the string body 35 that is in a tension state after the string body 417. 17. Thus, since the elastic restoring force of the compression spring 413 is used in addition to the gravity of the weight 31 to slide the pin 17 forward, the weight 31 is made lighter than the embodiment illustrated in FIG. It becomes possible. By securing a sufficiently strong elastic restoring force of the compression spring 413, the string body 35 and the pulley 423 can be removed, and the pin 17 can be slid forward only by the elastic restoring force of the compression spring 413.

Instead of the spring 47 (FIG. 4) and the springs 163 and 165 (FIG. 17) connected to the long member 45, other elastic members such as rubber bands can be used.
The plurality of bags 111 (FIGS. 6 to 8) in the pad are not independent bags but are divided into a plurality of bags by partitioning the inside of a single bag by a partition wall. May be. In this case, the narrow channel 113 that communicates the inside of the plurality of bags 111 may be a minute hole formed in the partition wall.
In the example of FIG. 11, the connecting rod 131 and the engaging member 129 may be inserted through a through-hole formed inside the horizontal base 3 so as to be along the front-rear direction 11.
In the example of FIG. 11, the rear pin 17 is not driven by the connecting rod 131, but instead of the string body 35, the string body is connected to the weight 31, so that It may be driven to retract to 132. For this purpose, for example, the hole 132 of the box-shaped part 7 is a through-hole penetrating the rear wall of the box-shaped part 7, and the end of the string body is inserted from the rear of the through-hole and connected to the pin 17. . In this case, on the side wall of the box-shaped portion 7, a string body is circulated, and a protective cover that guides and protects the string body may be disposed.

  101, 102 beds; 1 bed body; 3 bedside; 5 fallen object protection member; 7 box-shaped part; 8 floor; 9 storage part; 10 door; 11 front-rear direction; 12 left-right direction; 13 central axis; Low speed motor; 21 pulley; 23 belt; 31 weight; 33 weight support member; 35 string body; 37 relay member; 39 buffer mechanism; 41 string body; 43 groove; 45 long member; 47 spring; , 56, 57, 59 Pad; 61 Roller array; 63 Roller; 62 Pulley; 65 Bearing; 67 Rotating shaft; 69 Plate member; 71 Pin; 73 Engagement member; 75 Plate substrate; 81 Engaging member; 83 Cylindrical body; 85 Claw part; 87 Projection body; 89 Hinge; 91 Wings; 93 95 handle; 97 sheet; 99, 111 bag body; 113, 114 constricted flow path; 115 check valve; 121 covering; 123 frame; 125 fastener; 124, 126 arrow; 127 permanent magnet; 130 through-hole; 131 connecting rod; 132 through-hole; 133 through-hole; 135,137 bowl-shaped end; 139 gap; 141 locking projection; 143 relay member; 145 oil; 151, 15; 155 roller; 163, 165 Spring; 201 Valve seat; 203 Valve body; 205 Spring; 207 Tube; 210 Clip; 211 Male thread; 212 Nut; 213 Leg; 215, 216 Bag; 217 Connecting part; 221 Rear wall; 223 plates 231 cavity; 233, 243 spring; 235, 245 wire; 237, 247 pin; 239 guide groove; 263, 253 screw; 265, 255 fastening member; 267 notch; 300 channel; 302 fall prevention wall; 304 Cover; 305 Lid; Hook fastener 306; 307 Through hole; 308, 309 Recessed part; 310 Pad; 311 Guide rod; 325, 327 distance, 329 string; 331 locking member; 401 spacer; 403 compression spring; 411 flange: 413 compression spring; 415 locking member; 417 string;

Claims (47)

A bed,
A side stand that supports the body of a user lying down,
A recumbent base support mechanism that supports the recumbent base so as to be swingable around an axis along the front-rear direction of the bed;
A recumbent base swing mechanism that swings the recumbent base around the axis;
And at least one pad used on the recumbent base,
Each of the at least one pad includes a plurality of bags,
The plurality of bags can be arranged at different positions on the recumbent base, seal the fluid as a whole, and each expands and contracts according to the amount of the sealed fluid, and the flow path Through the interior,
The flow path is formed of a flexible material that can be closed by being sandwiched from the outside,
The recumbent base has a pinching mechanism biased by an elastic member so as to sandwich and seal at least a part of the flow path of the at least one pad,
The bed further includes first and second string bodies, a floor, and a relay member attached to the floor and relaying the second string body,
The first string body has one end connected to the pinching mechanism and the other end connected to the floor so as to open the pinching mechanism by the tension of the first string body.
One end of the second string body is connected to the pinching mechanism so as to open the pinching mechanism by the tension of the second string body, and an intermediate portion is relayed to the relay member attached to the floor, The other end is connected to a portion of the recumbent base farther from the one end than the one end and opposite to the shaft,
Accordingly, the pinching mechanism resists the biasing force of the elastic member only when the inclination angle of the horizontal base exceeds one predetermined limit in one direction and the other direction as the horizontal base is swung. The bed in which the first and second string members apply tension to the pinching mechanism so as to open. A bed,
A side stand that supports the body of a user lying down,
A recumbent base support mechanism that supports the recumbent base so as to be swingable around an axis along the front-rear direction of the bed;
A recumbent base swing mechanism that swings the recumbent base around the axis;
And at least one pad used on the recumbent base,
Each of the at least one pad includes a plurality of bags,
The plurality of bags can be arranged at different positions on the recumbent base, each has a fluid stopper that seals the whole so that fluid can be taken in and out, and each of the bags corresponds to the amount of the sealed fluid. It expands and contracts, and the inside communicates with each other through the flow path.
The flow path is formed of a flexible material that can be closed by being sandwiched from the outside,
The recumbent base has a pinching mechanism biased by an elastic member so as to sandwich and seal at least a part of the flow path of the at least one pad,
The bed further includes first and second string bodies, a floor, and a relay member attached to the floor and relaying the second string body,
The first string body has one end connected to the pinching mechanism and the other end connected to the floor so as to open the pinching mechanism by the tension of the first string body.
One end of the second string body is connected to the pinching mechanism so as to open the pinching mechanism by the tension of the second string body, and an intermediate portion is relayed to the relay member attached to the floor, The other end is connected to a portion of the recumbent base farther from the one end than the one end and opposite to the shaft,
Accordingly, the pinching mechanism resists the biasing force of the elastic member only when the inclination angle of the horizontal base exceeds one predetermined limit in one direction and the other direction as the horizontal base is swung. The bed in which the first and second string members apply tension to the pinching mechanism so as to open. A bed,
A side stand that supports the body of a user lying down,
A recumbent base support mechanism that supports the recumbent base so as to be swingable around an axis along the front-rear direction of the bed;
A recumbent base swing mechanism that swings the recumbent base around the axis;
And at least one pad used on the recumbent base,
Each of the at least one pad includes a plurality of bags,
The plurality of bags can be arranged at different positions on the recumbent base and seal the fluid as a whole, and each of them expands and contracts according to the amount of the sealed fluid, and the pressure difference The bed communicates with each other through a narrow channel that delays the movement of the fluid. A bed,
A side stand that supports the body of a user lying down,
A recumbent base support mechanism that supports the recumbent base so as to be swingable around an axis along the front-rear direction of the bed;
A recumbent base swing mechanism that swings the recumbent base around the axis;
And at least one pad used on the recumbent base,
Each of the at least one pad includes a plurality of bags,
The plurality of bags can be arranged at different positions on the recumbent base, each has a fluid stopper that seals the whole so that fluid can be taken in and out, and each of the bags corresponds to the amount of the sealed fluid. A bed in which the inside communicates with each other through a narrow flow path that expands and contracts and delays movement of the fluid due to a pressure difference.   At least one of the at least one pad has a flow direction in a part or all of the narrow channel while allowing the fluid to flow in and out of any of the plurality of bags. The bed according to claim 3 or 4 which has a check valve which regulates to one side.   The bed according to claim 5, wherein at least a part of the check valve also has a function of a pressure valve that opens only when a pressure difference exceeding a certain size is present.   At least one of the at least one pad includes a check valve that restricts the flow direction to one or all of the constricted flow path and another constricted parallel to the check valve. The bed according to claim 3 or 4 which has a channel.   Another check valve is interposed in the other narrow flow path, and the check valves including the other check valve are in parallel with each other, and the directions of regulating the flow of fluid are opposite to each other. The bed according to claim 7, wherein the narrow channels that are parallel to each other including the another narrow channel have different degrees of delaying the movement of the fluid due to a pressure difference.   The bed according to claim 8, wherein at least a part of the another check valve also has a function of a pressure valve that opens only when there is a pressure difference exceeding a certain size.   For at least one of the at least one pad, the plurality of bags are three or more bags, and the narrow channel forms a circulation path for circulating the plurality of bags. The bed according to claim 3 or 4, wherein:   The bed according to claim 10, wherein a check valve that restricts the flow direction to one side is interposed in a part or all of the narrow flow path forming the circulation path.   The bed according to claim 11, wherein at least a part of the check valve also has a function of a pressure valve that opens only when a pressure difference exceeding a certain size is present. The swing frequency of the horizontal base is set to any one of the range of 10 minutes to 24 hours, and can be set.
The narrow channel is set so that the time during which the fluid substantially flows out of the bag pressed by the body load of the lying user is in the range of 5 minutes to 12 hours, The bed according to any one of claims 3 to 12, which can be set.   The bed according to any one of claims 1 to 13, wherein the recumbent pedestal includes a pad fixing mechanism that detachably fixes the at least one pad.   The bed according to any one of claims 1 to 14, wherein the fluid is a liquid or a gel fluid. A plurality of rollers, and a pair of bearings that support the rotation shaft at both ends so that the plurality of rollers are arranged in a direction substantially orthogonal to the rotation shaft, and the arrangement direction of the rollers is in the front-rear direction A roller array that can be placed on the recumbent pedestal so as to follow,
The pair of bearings support the plurality of rollers such that an angle formed by the rotation shaft with respect to an arrangement direction of the plurality of rollers can be freely varied within a certain range,
In the horizontal base, two grooves are formed along the front-rear direction in the vicinity of both ends in the left-right direction on the upper surface,
The bed has a floor;
The bed is
Along each of the two grooves, both ends are connected to the floor, and at least one of the both ends is connected to the floor via an elastic member that can be expanded and contracted. Two long members in the form of cords or belts that reciprocate in opposite directions along the groove with movement;
When the roller array is fixed on the two elongate members and the roller array is placed on the recumbent base, it engages with the pair of bearings, respectively. The bed according to any one of claims 1 to 15, further comprising an engagement member capable of reciprocating a pair of bearings in the front-rear direction.   The bed according to claim 16, wherein the engaging member fixed to the two long members and the pair of bearings can be engaged with each other with play in the front-rear direction.   The bed according to claim 17, wherein the pair of bearings includes a variable mechanism that makes the size of the play variable.   19. The bed according to claim 16, wherein both of the two long members are connected to the floor via elastic members having different spring coefficients at both ends. . A cover that covers the recumbent base so as to keep a distance from the user lying on the recumbent base and that can be opened and closed or detached;
A blower mechanism for sending air from below the bedside to the inside of the cover;
The bed according to any one of claims 1 to 19, further comprising: an air temperature adjustment mechanism that heats or cools the air sent by the blower mechanism. The recumbent pedestal support mechanism supports the recumbent pedestal so that the support state can be released,
The bed is
A fallen object protection member arranged separately on both sides of the bed so as to be able to be opened and closed with respect to each other so as to sandwich the recumbent base when opened.
When the support state of the recumbent base is released by the recumbent base support mechanism, the recumbent base is in a substantially horizontal posture and more slowly than the natural fall speed, depending on the weight of the user and the recumbent base. A dampening mechanism that allows it to descend;
A closed drive mechanism for transmitting the descending movement of the bedside to the falling object protection member so that the falling object protection member is closed as the lying bed table is lowered;
The earthquake detection part which drives the said base stand support mechanism so that generation | occurrence | production of the earthquake of the intensity | strength exceeding a regulation may be detected and the said support state of the said base stand may be cancelled | released, The any one of Claim 1 to 20 Bed as described in. Holes along the axis are formed at both ends in the front-rear direction of the horizontal base,
The horizontal bed support mechanism is
Two pins that are slidably inserted along the shaft and are respectively inserted into the holes to support the recumbent base so as to be swingable around the shaft;
A support mechanism main body that slidably supports the two pins along the axis;
The earthquake detection unit slides the two pins along the axis so that the two pins are removed from either the hole of the horizontal base or the support mechanism body. The bed according to claim 21, wherein the support state of the lying base is released. The earthquake detection unit is disposed so as to penetrate the inside of the horizontal base or along the lower surface of the horizontal base, and connects the two pins so as to move in the same manner. Has a member,
The connecting member is set such that when one of the two pins slides so as to be removed from the hole of the recumbent base, the other pin is removed from the support mechanism main body, and The connecting member is configured such that when the one pin slides out of the hole of the recumbent base, the connection state between the recumbent base and the one pin is released by gravity of the user. An engagement member that is erected upward and that is detachably engaged from below.
The earthquake detection unit slides the one pin along the axis so that the one pin is removed from the hole of the recumbent base, and further moves the one pin via the connecting member to the other The bed according to claim 22, wherein the support state of the recumbent pedestal is released by transmitting to a pin.   The earthquake detection unit includes a weight, a weight support member that supports the weight so as to be dropped by an earthquake having a strength exceeding the regulation, and gravity of the dropped weight, and the two pins are on the shaft. 24. A bed according to claim 22 or 23, further comprising a gravity transmission mechanism that transmits to the two pins so as to slide along the two pins. The horizontal bed support mechanism is configured to bias the two pins by an elastic member so as to slide in a direction to release the support state of the horizontal bed, and the 2 by the biasing mechanism. A locking mechanism for releasably locking the sliding of the pins,
The earthquake detection unit releases a state in which the weight, a weight support member that supports the weight so as to be dropped by an earthquake having a strength exceeding the regulation, and a state in which the sliding of the two pins is locked. The bed according to any one of claims 22 to 24, further comprising a gravity transmission mechanism that transmits gravity of the dropped weight to the locking mechanism. The closing drive mechanism is
A string body connecting the recumbent base and the falling object protection member;
The bed according to any one of claims 21 to 25, further comprising: a relay member that converts the movement of the string body accompanying the descending of the recumbent pedestal into a movement in a direction in which the fallen object protection member is closed.   By releasing the support state of the bedside table, the bedside table is formed on both sides of the bed in the left-right direction to allow the user to escape to the outside when the bedboard table is lowered. The bed according to any one of claims 21 to 26, further comprising two doors that can be opened and closed from the inside to the outside of the bed. Including a plurality of bags,
The plurality of bags can be placed under the body of the user lying on the side and arranged at different positions, and the fluid is sealed as a whole, according to the capacity of the sealed fluid. Pads in which the inside communicates with each other through a narrow channel that expands and contracts and delays the movement of the fluid due to a pressure difference. Including a plurality of bags,
The plurality of bags are laid under the body of a user lying on the side and can be arranged at different positions from each other, and have a fluid stopper that seals the whole so that fluid can be taken in and out. Pads that communicate with each other through narrow channels that each expand and contract in accordance with the capacity of each fluid and delay the movement of the fluid due to a pressure difference.   The check valve for restricting the flow direction to one side is provided in a part or all of the narrow channel while allowing the fluid to flow in and out of any of the plurality of bags. 29. The pad according to 29.   The bed according to claim 30, wherein at least a part of the check valve also has a function of a pressure valve that opens only when there is a pressure difference exceeding a certain size.   30. The check valve according to claim 28 or 29, wherein a part or all of the narrow channel includes a check valve that restricts a flow direction to one side and another narrow channel in parallel with the check valve. pad.   Another check valve is interposed in the other narrow flow path, and the check valves including the other check valve are in parallel with each other, and the directions of regulating the flow of fluid are opposite to each other. 33. The pad according to claim 32, wherein the narrow flow paths that are parallel to each other including the other narrow flow paths have different degrees of delaying the movement of the fluid due to a pressure difference.   34. The pad according to claim 33, wherein at least a part of the other check valve also has a function of a pressure valve that opens only when there is a pressure difference exceeding a certain size.   30. The pad according to claim 28 or 29, wherein the plurality of bags are three or more bags, and the narrow channel forms a circulation path for circulating the plurality of bags.   36. The pad according to claim 35, wherein a check valve for restricting the flow direction to one side is interposed in a part or all of the narrow flow path forming the circulation path.   37. The pad according to claim 36, wherein at least a part of the check valve also has a function of a pressure valve that opens only when there is a pressure difference exceeding a certain magnitude.   The pad according to any one of claims 28 to 37, wherein the fluid is a liquid or a gel fluid.   The narrow channel is set so that the time during which the fluid substantially flows out of the bag pressed by the body load of the lying user is in the range of 5 minutes to 12 hours, 39. A pad according to any of claims 28 to 38, which is configurable. A bed,
A side stand that supports the body of a user lying down,
A recumbent base support mechanism that removably supports the recumbent base, and
A fallen object protection member arranged separately on both sides of the bed so as to be able to be opened and closed with respect to each other so as to sandwich the recumbent base when opened.
When the support state of the recumbent base is released by the recumbent base support mechanism, the recumbent base is in a substantially horizontal posture and more slowly than the natural fall speed, depending on the weight of the user and the recumbent base. A dampening mechanism that allows it to descend;
A closed drive mechanism for transmitting the descending movement of the bedside to the falling object protection member so that the falling object protection member is closed as the lying bed table is lowered;
A bed comprising: an earthquake detection unit that detects the occurrence of an earthquake with a strength exceeding a specified level and drives the recumbent base support mechanism to release the support state of the recumbent base. The bed rest support mechanism supports the bed rest so that it can swing around an axis along the front-rear direction of the bed and can release the support state.
41. The bed of claim 40, wherein the bed further comprises a recumbent base swing mechanism that swings the recumbent base around the axis. Holes along the axis are formed at both ends in the front-rear direction of the horizontal base,
The horizontal bed support mechanism is
Two pins that are slidably inserted along the shaft and are respectively inserted into the holes to support the recumbent base so as to be swingable around the shaft;
A support mechanism main body that slidably supports the two pins along the axis;
The earthquake detection unit slides the two pins along the axis so that the two pins are removed from either the hole of the horizontal base or the support mechanism body. The bed according to claim 41, wherein the support state of the recumbent pedestal is released. The earthquake detection unit is disposed so as to penetrate the inside of the horizontal base or along the lower surface of the horizontal base, and connects the two pins so as to move in the same manner. Has a member,
The connecting member is set such that when one of the two pins slides so as to be removed from the hole of the recumbent base, the other pin is removed from the support mechanism main body, and The connecting member is configured such that when the one pin slides out of the hole of the recumbent base, the connection state between the recumbent base and the one pin is released by gravity of the user. An engagement member that is erected upward and that is detachably engaged from below.
The earthquake detection unit slides the one pin along the axis so that the one pin is removed from the hole of the recumbent base, and further moves the one pin via the connecting member to the other 43. The bed according to claim 42, wherein the support state of the recumbent pedestal is released by transmitting to a pin.   The earthquake detection unit includes a weight, a weight support member that supports the weight so as to be dropped by an earthquake having a strength exceeding the regulation, and gravity of the dropped weight, and the two pins are on the shaft. 44. The bed according to claim 42 or 43, further comprising a gravity transmission mechanism that transmits to the two pins so as to slide along the two pins. The horizontal bed support mechanism is configured to bias the two pins by an elastic member so as to slide in a direction to release the support state of the horizontal bed, and the 2 by the biasing mechanism. A locking mechanism for releasably locking the sliding of the pins,
The earthquake detection unit releases a state in which the weight, a weight support member that supports the weight so as to be dropped by an earthquake having a strength exceeding the regulation, and a state in which the sliding of the two pins is locked. The bed according to any one of claims 42 to 44, further comprising: a gravity transmission mechanism that transmits gravity of the dropped weight to the locking mechanism. The closing drive mechanism is
A string body connecting the recumbent base and the falling object protection member;
The bed according to any one of claims 40 to 45, further comprising: a relay member that converts the movement of the string body accompanying the descending of the recumbent pedestal into a movement in a direction in which the fallen object protection member is closed.   By releasing the support state of the bedside table, the bedside table is formed on both sides of the bed in the left-right direction to allow the user to escape to the outside when the bedboard table is lowered. The bed according to any one of claims 40 to 46, further comprising two doors that can be opened and closed from the inside to the outside of the bed.

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