JP2005111113A - Patient lift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a patient hanger surely recognizing that cords of a suspension device are latched to hooks of the hanger before lifting a care-receiver in need of care in a patient lift. <P>SOLUTION: The patient lift is provided with a lifting device 11, a belt 12 wound and rewound by the lifting device, a hanger 13 connected to the belt, hooks 13a1, 13a2, 13b1 and 13b2 provided in the hanger 13 and latching the cords 14a, 14b, 15a and 15b of the suspension member, and a control device 100. The control device controls the lifting device to rewind the belt 12 for raising the hanger to which load is applied, and to stop once, when a predetermined tension is applied to the belt. After confirming that the cords are locked to the respective hooks, it is raised again. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a care lift for lifting a physically handicapped person, and more particularly, to safety confirmation at the start of lifting.

  Conventionally, a care lift has been used for a physically handicapped person who cannot move the body by himself or a care recipient such as an elderly person. The care lift is for lifting a person who needs care with a lift, helping to add to the toilet, and helping to take a bath.

  As such a care lift, for example, those described in Patent Document 1 (Japanese Patent Laid-Open No. 2000-126250) and Patent Document 2 (Japanese Patent Laid-Open No. 10-71178) are known.

  FIG. 5 is a perspective view showing a main part of the care lift described in Patent Document 1. As shown in FIG. This figure shows a state where a care recipient is sitting on the toilet by a care lift. The care lift 10 includes an elevating device 11, a belt 12, a hanger 13, and an operation switch 17.

  The elevating device 11 is supported on a building wall, a movable base, or the like by an arm 11a or the like, and accommodates a motor, a gear train for deceleration, a take-up pulley for the belt 12, and the like. Moreover, the control apparatus which consists of a microcomputer etc. which control the whole care lift 10 and other required apparatuses are also accommodated.

  The belt 12 is made of the same material as the safety belt of an automobile and has a width of 30 mm and a thickness of 1.5 mm made of polyester fibers in a plain weave.

  The switch 17 has an ascending button 17a, a descending button 17b, and an emergency stop button 17c. The switch 17 is connected to a control device in the main body by a cord 17d.

  The care recipient is supported by the upper body suspension member 14 on the upper body, and the left and right thighs are supported by separate leg suspension members 15 and 15. The upper body suspension member 14 and the left and right leg suspension members 15 and 15 are integrally connected by connection members 16 and 16, respectively. The upper body suspension member 14 has a string 14a on the right side and a string 14b on the left side, the right leg suspension member 15 has a string 15a, and the left leg suspension member 15 has a string 15b. The strings 15a and 15b of the suspension members 15 and 15 are pulled out inside the thigh of the care recipient.

  In FIG. 5, the string 15a on the right thigh and the string 15b on the left thigh among the strings of the leg suspension member 15 pulled out to the inside of the thigh of the care recipient are used. Then, the left side string 14b of the upper body suspension member 14 of the care recipient and the right thigh string 15a are hung on the hook 13b of the hanger 13, the right side string 14a of the upper body suspension member 14 of the care recipient, The left thigh string 15 b is hung on the hook 13 a of the hanger 13. As a result, as shown in FIG. 5, the care lift 10 is provided for a physically handicapped person with the upper body centered on the back supported by the upper body suspension member 14 and the thigh supported by the leg suspension member 15. Can be lifted by hanging on.

  The lifted care recipient is lowered to the toilet 20. Then, the left and right connecting members 16 are released from the state of being lowered in the toilet 20, and the strings 15a and 15b of the leg suspension member 15 are detached from the hooks 13a and 13b of the hanger 13, and the leg suspension members 15 and 15 are suspended from the upper body. If it removes from the member 14 and the leg suspension members 15 and 15 are removed from between the toilet bowl 20 and the thigh, it will be in the state of FIG.

  In this state, the body side surface under the back and the heel is held by the body suspension member 14, and the body suspension member 14 is connected to the care lift. That is, the upper body of the person is held by the upper body suspension member 14, and the lower body is not held at all. Therefore, trousers and pants can be easily removed from a person sitting on the toilet 20, and the trousers and pants can be used in the toilet without getting dirty. Moreover, since the upper body suspension member 14 is set so as not to cover the buttocks, the trousers and the pants are more easily removed, and the upper body suspension member 14 is not contaminated. After using the toilet, pants and pants are put on, and then the leg suspension members 15 and 15 are placed between the toilet 20 and the thigh, and the connection member 16 of the leg suspension members 15 and 15 is hung on the upper body. While being connected to the member 14, the strings 15a, 15b of the leg suspension members 15, 15 are hooked on the hooks 13a, 13b of the hanger 13. As a result, a person with a physical disability can be dressed and lifted from the toilet 20.

  Next, also when taking a bath, first, the leg suspension member 15 is removed from the state shown in FIG. In this case, a chair (not shown) is used instead of the toilet 20, and a person is seated on the chair. From the state of FIG. 6, pants, pants and the like can be removed. Then, if the upper body suspension member 14 is removed from the hooks 13a and 13b of the hanger 13, and the outer garment or shirt is removed, the hanger 13 can be made naked. This allows you to take a bath. After getting out of the bath, you can put on your underwear or jacket by following the reverse procedure.

  The care lift 10 is operated by operating a push button of the switch 17. The switch 17 has an ascending button 17a and a descending button 17b. When the raising button 17a is pushed, the hanger 13 rises while the button is pushed, and when released, it stops. Similarly, when the lowering button 17b is pushed, the lowering is made only while the lowering button 17b is pushed, and when the releasing button 17b is released, the lowering is stopped. Alternatively, it may be lifted or lowered when pressed once and stopped when pressed again. The elevating device 11 has an ascent limit and a descending limit, and if it rises to the ascent limit, even if the ascending button 17a is pushed, no further raising occurs, and if it falls to the descending limit, even if the descending button 17b is pushed. There is no further descent. The emergency stop button 17c is a safety device and is a button for forcibly stopping in an emergency.

  FIG. 7 is an enlarged view of the hook 13 a of the hooks 13 a and 13 b provided at both ends of the hanger 13. Since the hook 13b has the same shape as the hook 13a, only one of them will be described.

  As described with reference to FIG. 5, the hook 13 a is hooked with two strings, that is, the right string 14 a of the upper body suspension member 14 and the left thigh string 15 b. If the hanger 13 has only one hook 13a, the two strings 14a and 15b are hung on the same hook. 5 to 6, only the string 15b of the leg suspension member 15 is detached from the hook 13a. At this time, if the string 15b is on the string 14a, it is easy to remove it from the hook 13a. However, if the string 15b is under the string 14a, it is difficult to remove.

  The caregiver should always consider this, and the string 15b should be placed on the string 14a. However, such consideration is a heavy burden on the worker. As a caregiver, it is difficult to pay attention to how to hang a string because it uses nerves to safely lift and move a care recipient, or to take care of a toilet or bathing.

  Therefore, conventionally, a retaining member as shown in FIG. 7 has been used. The hook 13a is a combination of two hooks 13a1 and 13a2, and is formed by curving an iron bar or the like into a figure 3 shape. The string 14a is hooked on one of the two hooks 13a1 and 13a2, and the string 15b is hooked on the other. Since only one string is hooked on one hook, there is no need to consider which one should be up, as in the case of overlapping vertically.

  However, with this alone, when the strings 14a and 15b are loosened, they are easily detached from the hooks 13a1 and 13a2. In particular, since the string is loosened after being hooked, the hook may come out of the hook, and the hanger 13 may be lifted without noticing this, thereby failing to raise the care recipient. Therefore, rubber retaining members 21 and 21 are fitted into the tips of the hooks 13a1 and 13a2. The protrusion 21a of the retaining member 21 closes the openings of the hooks 13a1 and 13a2 to prevent the strings 14a and 15b from coming off. When it is desired to remove the strings 14a and 15b from the hooks, the rubber protrusions 21a are pushed and bent to widen the opening of the hooks, and then the strings 14a and 15b are taken out.

However, in the case of using the retaining member 21 as shown in FIG. 7, it is difficult to pull out the strings 14a and 15b from the hooks 13a1 and 13a2 with one hand. The string 14a or the string 15b must be extracted from the hook by hand. Further, the same number of retaining members 21 as the hooks are required, which increases the cost. Even if the retaining member 21 is provided on the hook in this manner, the retaining of the string can be prevented, but when the string is removed, it becomes difficult to remove the string, and the burden on the caregiver increases. Therefore, it is necessary to be able to confirm that the string of the hanger is hooked on the hook by another means.
JP 2000-126250 A JP-A-10-71178

  The present invention was conceived from the above facts, and in the care lift, before the care recipient is lifted, it is possible to surely confirm that the string of the hanger is hooked on the hook of the hanger. The purpose is to provide care hangers.

  In order to achieve the above object, a care lift according to the first invention of the present application includes an elevating device, a belt wound and unwound by the elevating device, a hanger connected to the belt, and a hanger. A hook that is provided and hooks a string of a suspension member; and a control device that winds the belt to lift the hanger on which the lifting device is loaded, and applies a predetermined tension to the belt. It is characterized in that it is controlled to stop once.

  A care lift according to a second invention of the present application is characterized in that the lifting device has a motor and an ammeter that measures a current flowing through the motor, and the control device uses a preset threshold for the current measured by the ammeter. It is characterized in that it is determined that a predetermined tension is applied to the belt.

  According to a third aspect of the present invention, the care lift includes a plurality of hooks on which the hanger applies a load, and each hook is provided with a tension sensor and display means for displaying the state of the tension pressure sensor. It is a feature.

  According to 1st invention of this application, there exist the following effects. A hanging member is attached to the person requiring care, and the string of the hanging member is hung on the hook of the hanger. When the lifting device is activated and the hanger starts to be lifted, tension is applied to the string of the suspension member. This tension is transmitted to the belt and then to the lifting device. The lifting device detects that a load has been applied, and then temporarily stops. The operator can check each string here to confirm whether it is securely hooked to the hook. After confirmation, the motor is driven again and the care recipient is lifted to a predetermined height. Since it is possible to reliably check that the string is hooked on the hook, it is possible to lift the care recipient safely.

  In the second aspect of the present invention, the lifting device has a motor for winding and rewinding the belt. And the electric current which flows into this motor is measured, and when the electric current value reaches the preset threshold value, it is made to stop once. An ammeter is conventionally provided in a care lift, and can be handled by simply changing the software of the control device without adding new parts.

  As in the third aspect of the present invention, when each hook is provided with a sensor and a display means for displaying the state of the sensor, when a predetermined tension is applied to each string, the state is displayed on the display means. . As a result, it is possible to immediately specify a string to which no tension is applied, and it is not necessary to check all the strings. The sensor and the display device can be provided independently of the control device, and need not be connected by a signal line or the like, and can be attached at low cost.

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

  The care lift of the present invention is almost the same as that shown in FIGS. 5 and 6 in appearance. In this invention, it has the characteristics in the structure of the hook part of the hanger 13, and the structure of a control apparatus.

  FIG. 1 is a block diagram of a control device for controlling a care lift of the present invention and its peripheral devices. FIG. 2 is an enlarged perspective view of a hanger portion of the care lift.

  In FIG. 1, the control device 100 includes a computer and controls a care lift according to an installed program. Within the control device 100, there are a determination unit 110, a storage unit 120, and a timer 130.

  The motor 210 is provided in the elevating device 11 (FIG. 5), and winds up the belt 12 to raise the hanger 13, or unwinds the wound belt 12 and lowers the hanger 13. The ammeter 220 constantly detects the value of the current flowing through the motor 210. The storage unit 120 stores the current flowing in the motor as a threshold value when the belt 12 in the slack state starts to be wound up and the belt 12 is stretched and the cared person starts to be lifted. The determination unit 110 compares the current value stored as a threshold value in the storage unit 120 with the current value actually flowing in the motor 210.

  In the above configuration, the ammeter 220 is conventionally provided in the care lift 10 and is used for emergency stop of the care lift when an abnormal current flows through the motor 210. The determination unit 110, the storage unit 120, and the timer 130 are also functions that the control device 100 originally has, or are formed on software, so that a newly attached component is unnecessary. Therefore, the cost for attachment can be reduced.

  Next, the operation of the embodiment of the present invention will be described. As shown in FIG. 5, the care recipient is supported by the upper body suspension member 14 and the left and right leg suspension members 15 and 15, and as shown in FIG. 2, the upper body suspension is placed on one hook 13a1 of the hanger hook 13a. The string 14a on the right side of the member 14 is hung and the string 15b on the left thigh of the leg suspension member 15 is hung on the other hook 13a2. Further, the left string 14b of the upper body suspension member 14 is hung on one hook 13b1 of the hanger hook 13b, and the right thigh string 15a of the leg suspension member 15 is hung on the other hook 13b2. In the present invention, the retaining member 21 is not provided on any of the four hooks.

  FIG. 3 is a flowchart for explaining a state where the care lift of the present invention lifts a care recipient. As shown in FIG. 2, when each string is hung on each hook, it waits for the raising button 17a to be turned on (S101). When the ascent is started, the strings 14a, 14b, 15a, 15b are tensioned, and at the same time, tension is applied to the belt 12. At this time, the current flowing through the motor 210 rapidly increases, and the current measured by the ammeter 220 exceeds the threshold (S102). If it will be in this state, electricity supply to the motor 210 will be stopped and a raise will be stopped once (S103). In a state where the motor 210 is stopped and tension is applied to the belt 12, the operator checks each string and checks whether there is anything detached from the hook. A necessary and sufficient time for this check is set in the timer 130, and the passage of time is waited (S104). Until this time elapses, the motor 210 is prevented from rotating even if the ascending button 17a is pressed. By the time the predetermined time elapses, it is confirmed that each string is hooked on the hook, and the ascending button 17a is pressed again, so that ascending resumes (S105, S106). It ends when the care recipient rises to a predetermined height.

  FIG. 4 is a perspective view showing the hanger portion of the care lift, showing the main part of the second embodiment of the present invention. In this embodiment, each hook 13a1, 13a2, 13b1, 13b2 is provided with a tension sensor 30 for detecting the tension of each string 14a, 14b, 15a, 15b. A display means 31 is connected to each tension sensor 30. The tension sensor 30 and the display means 31 are connected by an electric wire (not shown) that is wired at a position that does not contact the hook string. A control unit 32 is provided in the main body of the hanger 13 and is connected to the tension sensors 30 and the display means 31 by electric wires (not shown). A substrate for controlling the tension sensor 30 and the display means 31 and a battery as a power source are accommodated in the control unit 32. In this embodiment, a piezoelectric element is used as the tension sensor 30, and a light emitting diode is used as the display means 31.

  The tension sensor 30, the display means 31, and the control unit 32 are provided only on the hanger 13. Therefore, since there is no need to wire the electric wire along the belt 12, the electric wire is not damaged by winding and unwinding the belt 12.

  Next, the operation of this embodiment will be described. As shown in FIG. 2, when each string is hung on each hook, the flowchart of FIG. 3 is started. That is, when the ascending button 17a is turned on and (S101) ascending is started, tension is applied to the belt 12 soon. The current flowing through the motor 210 exceeds the threshold (S102), and the motor 210 stops rising (S103). When tension is applied to the string hung on each hook, the tension sensor 30 provided on the hook is turned on, and the display means 31 corresponding to this is turned on. The operator checks whether all the display means 31 are lit within the time set in the timer 130 (S104). It is confirmed by lighting of the display means 31 that each string is not detached from the hook, and when a predetermined time elapses, the ascending button 17a is pressed again, and the ascending is resumed (S105, S106). It ends when the care recipient rises to a predetermined height.

  As the display means 31, a method of attaching a light emitting diode to the tip of the hook is most suitable. This is because the display means 31 can be easily attached and can be easily seen. Further, when a buzzer is used as the display means 31, it is desirable that the buzzer be sounded when the strings are hooked on all the hooks and all the tension sensors 30 are turned on.

It is a block diagram of the control apparatus which performs control of the care lift of the present invention, and its peripheral device. It is an expansion perspective view of the hanger part of a care lift. It is a flowchart explaining the state which the lift for care of this invention lifts a care recipient. It is a figure which shows the principal part of 2nd Example of this invention, and is a perspective view which shows the hanger part of a care lift. It is a perspective view which shows the principal part of the conventional nursing care lift. It is a perspective view which shows the state which moved the care recipient to the toilet bowl with the care lift. It is a front view of a hook fitted with a retaining member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Care lift 11 Lifting device 12 Belt 13 Hanger 13a1, 13a2, 13b1, 13b2 Hook 30 Tension sensor 31 Display means 100 Control device 110 Determination means 120 Storage means 130 Timer 210 Motor 220 Ammeter

Claims (3)

  An elevating device, a belt wound and unwound by the elevating device, a hanger connected to the belt, a hook provided on the hanger for hooking a string of a suspension member, and a control device The control device controls the take-up device to take up the belt to lift the hanger on which the lifting device is loaded and to temporarily stop the belt when a predetermined tension is applied to the belt.   The elevating device has a motor and an ammeter that measures the current flowing through the motor, and when the current measured by the ammeter reaches a preset threshold value, a predetermined tension is applied to the belt. The care lift according to claim 1, wherein the care lift is determined to be added.   The care lift according to claim 1, wherein the hanger has a plurality of hooks for applying a load, and each hook is provided with a tension sensor and a display means for displaying a state of the tension pressure sensor.

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