KR102383883B1 - Hoist for patient - Google Patents

Abstract

A hoist for a patient is disclosed. The patient hoist of the present invention, the cover; a motor located within the cover; a gear unit driven by the motor; a rotating shaft rotating by the gear unit; a strap accommodating part in which the strap is unwound or wound according to the rotation direction of the motor transmitted through the rotation shaft; and a fall prevention unit connected to the strap accommodating part, wherein the fall prevention part includes a rotating body rotating together with the rotational force of the strap receiving unit, and at least one arm having one side hinged to the rotating body; At least one spring providing an elastic force so that the other side of the at least one arm is in close contact with the rotating body, and when the centrifugal force caused by the rotation of the strap receiving part is greater than the elastic force, the at least one arm spaced apart from the rotating body It is characterized in that it comprises at least one stopper (Stopper) in contact with the other side. According to the present invention, it is possible to prevent the subject from falling during transport.

Description

Hoist for patient {HOIST FOR PATIENT}

The present invention relates to a hoist for a patient including a fall prevention unit to prevent a subject from falling during transport.

A hoist is a device in which a speed reducer, a drum, etc. are integrated in order to lift an object. The hoist may serve to change the position of the object by driving automatically and/or manually in a state in which the object is lifted. The hoist can be operated with various drivetrains such as chain, air, and electric.

In the hoist for the patient, the object to be lifted may be a person. In particular, it may be for the purpose of moving a person who is inconvenient to move or has a physical disability. In line with various phenomena such as an aging society, the number of cases of installing patient hoists in general homes as well as hospitals is increasing.

Accordingly, the need to ensure safety and functionality while lowering the price of the patient hoist is gradually increasing.

SUMMARY OF THE INVENTION The present invention aims to solve the above and other problems. Another object is to provide a hoist for a patient including a fall prevention unit to prevent a fall of the subject being transported.

Another object is to provide a hoist for a patient that can effectively transport a subject even when the rail cannot be connected to a wall or the like.

According to an aspect of the present invention to achieve the above or other objects, the cover; a motor located within the cover; a gear unit driven by the motor; a rotating shaft rotating by the gear unit; a strap accommodating part in which the strap is unwound or wound according to the rotation direction of the motor transmitted through the rotation shaft; and a fall prevention unit connected to the strap accommodating part, wherein the fall prevention part includes a rotating body rotating together with the rotational force of the strap receiving unit, and at least one arm having one side hinged to the rotating body; At least one spring providing an elastic force so that the other side of the at least one arm is in close contact with the rotating body, and when the centrifugal force caused by the rotation of the strap receiving part is greater than the elastic force, the at least one arm spaced apart from the rotating body It may include at least one stopper in contact with the other side.

The stopper is located in a loop-shaped fixed body having a receiving portion larger than the diameter of the rotating body to accommodate the rotating body, and at least one may be disposed to be spaced apart from each other toward the inside of the fixed body. .

It further includes at least one fixed plate to which the motor is fixed, and the fixed body may be coupled to the at least one fixed plate regardless of rotation of the rotating body.

The motor may further include at least one fixing plate to which the motor is fixed, and the motor and the fall prevention unit may be positioned to face each other on one side and the other side of the at least one fixing plate.

It further comprises at least one connecting ring so as to correspond to each other from the upper side of the cover to the outside, wherein the at least one connecting ring is a second rail that is not continuous with the first rail, the patient hoist moving along the first rail It can be coupled to a strap extending from the second rail when moving to.

The effect of the hoist for a patient according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, there is an advantage that it is possible to prevent the subject from falling during transport.

According to at least one of the embodiments of the present invention, there is an advantage that it is possible to effectively transport the subject even when the rail cannot be connected to a wall or the like.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, it should be understood that the detailed description and specific embodiments such as preferred embodiments of the present invention are given by way of example only, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art.

1 is a view showing the appearance of a hoist for a patient according to an embodiment of the present invention.
2 and 3 are views illustrating a driving unit of the hoist for a patient of FIG. 1 .
4 is an exploded perspective view of the fall prevention part of FIG. 3 .
Figure 5 is a side view of the fall arrest unit of Figure 4;
FIG. 6 is another embodiment of the fall arrester of FIG. 3 .
7 and 8 are diagrams illustrating the operation of the hoist for a patient according to an embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numbers regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

1 is a view showing the appearance of a hoist for a patient according to an embodiment of the present invention.

As shown here, the hoist for a patient 1 according to an embodiment of the present invention may include a cover (C), a connecting ring (60), and a control panel (P).

The cover (C) can form the external appearance of the hoist for a patient (1). The cover (C) may be made of a plastic material. The cover (C) may be divided into a plurality of parts and then assembled into one. For example, it means that it can be assembled after being composed of two parts in a longitudinal or transverse direction. Therefore, if necessary due to damage, etc., only damaged parts can be replaced, which can be economical.

The connecting ring 60 may be located on the upper side of the hoist for a patient (1). The connecting ring 60 may be a strap connecting the hoist 1 for the patient and the rail.

By using the linkage (60), it is possible to extend the function of the hoist (1) for the patient while lowering the installation cost. This point can be easily understood when supposing a typical house in which the wall is located above the door between the room. In order for the rail to be connected, the wall must be removed. However, there are cases in which the wall cannot be removed due to structural and cost problems. The connecting ring 60 according to an embodiment of the present invention may include first and second connecting rings 62 and 64 . By using the first and second connecting rings 62 and 64, the patient hoist 1 can be moved even between the first and second rails that are not connected due to the wall, and this will be described in more detail in the corresponding part. .

The control panel (P) may be exposed to the outside of the patient hoist (1). Through the control panel (P), it is possible to operate the hoist (1) for the patient. For example, the strap can be wound or loosened to raise or lower the subject. Through the control panel (P), it is possible to recognize the state of the patient hoist (1). For example, it means that information such as the remaining battery amount and expected operating time may be displayed on the control panel P. Meanwhile, although not shown, an extension line capable of serving as the control panel P may extend downward. When the extension cord is present, the user can operate the patient hoist 1 without extending the arm upward.

2 and 3 are views showing the internal configuration of the hoist for a patient of FIG. 1 .

As shown in these drawings, the driving unit 10 of the patient hoist 1 according to an embodiment of the present invention includes a motor 20, a gear unit 30, a rotating shaft 40, and a strap receiving unit. (70), and may include a fall prevention unit (100).

The driving unit 10 may be configured to generate a force that allows the patient hoist 1 to wind the strap. The driving unit 10 may be located inside the cover (C).

The motor 20 may be located at one side of the fixing plates 12 and 14 that provide rigidity so that the components of the driving unit 10 are coupled. The fixing plates 12 and 14 may be made of a metal material that is relatively light, such as aluminum, and can support the components. The fixing plates 12 and 14 may be divided into first and second fixing plates 12 and 14 . The first and second fixing plates 12 and 14 may be coupled to each other through a plurality of connecting pins 16 . The motor 20 may be coupled to the outside of the first fixing plate 12 .

The motor 20 may perform forward rotation, reverse rotation, and stop operations by a user's manipulation of the control panel P. The rotational force generated by the motor 20 may cause the strap to be wound or unwound through a series of processes.

The gear unit 30 may be a set of gears that are accelerated/decelerated by receiving rotational force from the motor 20 . The rotation speed and/or rotational force of the motor 20 may be adjusted through the gear unit 30 and the rotation gears 46 and 48 positioned between the first and second fixing plates 12 and 14 .

The rotating shaft 40 may be an output end of the gear unit 30 and an input end of the rotating gears 46 and 48 . That is, it means that the rotational force output from the gear unit 30 can be transmitted to the rotational gears 46 and 48 through the rotational shaft 40 .

The rotation shaft 40 may not be physically separated from the rotation shaft 40 , but may be divided into first and second rotation shafts 42 and 44 in relation to the fixed plates 12 and 14 . For example, the first rotation shaft 42 is a rotation shaft 40 positioned between the gear unit 30 and the first fixed plate 12 on which the motor 20 is located, and the second rotation shaft 44 is the first It means that it may be a rotation shaft 40 extending from the rotation shaft 42 and positioned between the first and second fixing plates 12 and 14 . The end of the second rotation shaft 44 may be coupled to the first rotation gear 46 .

The strap accommodating part 70 may be integrally formed with the second rotation gear 48 meshed with the first rotation gear 46 . That is, the driving force generated by the motor 20 passes through the gear unit 30 and the first and second rotation gears 46 and 48 and the rotational force is adjusted so that the strap accommodating unit 70 can be rotated forward or reversed. it means.

The strap accommodating part 70 may be an area in which the strap connecting the patient hoist 1 and the hanging patient and/or the patient hoist 1 and the rail is wound. For example, the first strap (S1 in FIG. 7 ) that is extended downward of the hoist for the patient and connected to the patient may be wound or released from the strap receiving part 70 . For example, the second strap (S2 of FIG. 7 ) extending upwardly of the hoist for a patient and connected to the rails R1 and R2 may be wound or released from the strap receiving part 70 .

The upper fixing plate 50 may be located above the strap receiving part 70 . The upper fixing plate 50 may be coupled to the first and second fixing plates 12 and 14 , and the first and second fixing plates 12 and 14 may be firmly coupled together with the connecting pin 16 . The upper fixing plate 50 may include a slit 52 and a ring connection hole 54 . The position of the upper fixing plate 50 in relation to the first and second fixing plates 12 and 14 may be changed. This means that the upper fixing plate 50 may not be positioned between the first and second fixing plates 12 and 14 . For example, when the interval between the first and second fixing plates 12 and 14 is narrow, it means that the upper fixing plate 50 may be positioned to be biased toward one side of the first and second fixing plates 12 and 14 . In this case, the slit 52 may not be positioned between the first and second fixing plates 12 and 14 . For example, when observed from the upper side, the slit 52 may be located between the motor 20 and the first and second fixing plates 12 and 14, not between the first and second fixing plates 12 and 14. means there is For example, when viewed from the upper side, it means that the slit 52 may be positioned after the motor 20 and the first and second fixing plates 12 and 14 . The position of the slit 52 may be optimized so that the strap passing through the slit 52 does not interfere with other structures.

The slit 52 may provide a path through which the second strap ( S2 of FIG. 7 ) can be connected to the upper rails R1 and R2 . The slit 52 may be formed to correspond to the width of the second strap ( S2 in FIG. 7 ).

The ring connection hole 54 may be formed on the upper side of the upper fixing plate 50 . The ring connection hole 54 may be a connection part to which the connection ring 60 is coupled. The ring connection hole 54 may correspond to the connection ring 60 . For example, when the connecting ring 60 is arranged symmetrically, it means that the ring connecting hole 54 may also be formed symmetrically to the left and right to correspond thereto.

The fall prevention unit 100 may be located on the second fixing plate 14 side. The fall prevention unit 100 may be located on the other side of the motor 20 around the first and second fixing plates 12 and 14 . The driving unit 10 includes a motor 20, a gear unit 30, a fall prevention unit 100, a battery (not shown), and the like, and these components should be arranged in a balanced overall manner. Therefore, it is possible to balance the overall weight by arranging the fall prevention unit 100 and the like on the other side of the relatively heavy motor 20 .

Fall prevention unit 100, the strap wound on the strap receiving unit 70 is unintentionally released to prevent an accident in which the subject falls while being transported. The fall prevention unit 100 may temporarily prevent the strap from unwinding when the strap is quickly unfastened over a certain speed. The fall prevention unit 100 is the motor 20, the gear unit 30, the rotation gear (46, 48), the rotation shaft 40, such as the damage and / or abnormal operation of the components of the driving unit 10, the subject does not fall It may be a safety device to prevent it.

The fall prevention unit 100 may be configured to operate mechanically. That is, it may mean that it does not operate electrically/electronically. Therefore, mechanically stable operation may be possible even in the event of battery discharge or sudden power cut off.

FIG. 4 is an exploded perspective view of the fall arrester of FIG. 3 , and FIG. 5 is a side view of the fall arrester of FIG. 4 .

As shown in these figures, the fall prevention unit 100 includes a rotating body 110 that rotates together by receiving the rotational force of the strap receiving unit 70, and an arm 120 having one side hinged to the rotating body 110. ), the springs 123c and 125c providing an elastic force so that the other side of the arm 120 is in close contact with the rotating body 110, and the centrifugal force caused by the rotation of the strap accommodating part 70 is the elastic force of the springs 123c, 125c. In a larger case, it may include stoppers 132 and 135 that contact the other side of the arm 120 spaced apart from the rotating body 110 .

The rotating body 110 may be located inside the fall prevention unit 100 . The rotating body 110 may include a shaft coupling hole 112 connected to one end of the rotation shaft of the strap receiving part 70 . Accordingly, the rotating body 110 may rotate in the same direction and at the same speed as the strap receiving unit 70 . In other words, it can be said that the rotating body 110 is mechanically substantially integrated with the strap receiving part 70 . The rotation shaft of the strap receiving part 70 may extend to the bearing 140 through the shaft coupling hole 112 . Therefore, the rotating body 110 can freely rotate inside the fall prevention unit 100 without interfering with other components of the fall prevention unit 100 .

The arm 120 may be coupled to the rotating body 110 to rotate together with the rotating body 110 . The arm 120 may be plural. For example, this means that the first and second arms 122 and 124 may be disposed to face each other. Of course, one or three or more arms 120 may be positioned as needed.

Arm 120, one side may be coupled to the rotating body 110 so that a hinge operation is possible. For example, the first and second coupling pins 123a and 125a may be coupled to the first and second coupling holes 123b and 125b of one side of the rotating body 110 and the first and second arms 122 and 124. there is. The first and second coupling pins 123a and 125a may serve as hinge shafts after being coupled to the first and second coupling holes 123b and 125b. That is, it means that the first and second arms 122 and 124 can rotate around the first and second coupling pins 123a and 125a.

The springs 123c and 125c may provide an elastic force to the arm 120 . The first and second springs 123c and 125c may be positioned on opposite sides of the coupling positions of the first and second coupling pins 123a and 125a. The elastic force provided by the first and second springs 123c and 125c to the first and second arms 122 and 124 may be a tensile force. That is, it means that elastic force can be provided in a direction in which the first and second arms 122 and 124 are in close contact with the rotating body 110 . Therefore, if no other force is applied, the arm 120 may maintain a position in close contact with the rotating body 110 .

The fixed body 130 may be a portion substantially coupled to the second fixing plate 14 . By the fixed body 130 and the cover 150 coupled to the fixed body 130 by the bolts 152, a space in which the rotating body 110 and the like can be accommodated may be formed therein.

The fixed body 130 may include a receiving portion 131 capable of accommodating the rotating body 110 therein. The diameter of the receiving part 131 may be larger than the diameter of the rotating body 110 . Therefore, even when the fixed body is fixed to the second fixed plate 14 , the rotating body 110 can rotate without interfering with the fixed body 130 .

The stoppers 132 and 135 may be located on the fixed body 130 . The stoppers 132 and 135 may be plural. For example, it means that the first and second stoppers 132 and 135 may be positioned on the fixed body 130 in a state in which they are spaced apart from each other. For example, it means that the first and second stoppers 132 and 135 may be symmetrically positioned on a loop of the fixed body 130 .

The stoppers 132 and 135 may have a shape protruding inward. The stoppers 132 and 135 protrude inward, but may not interfere with the rotation range of the rotating body 110 in a general situation. However, when the rotating body 110 rotates, centrifugal force may be applied to the arm 120 rotating together with the rotating body 110 . When the rotation of the rotating body 110 is accelerated so that the centrifugal force applied to the arm 120 is greater than the tensile force of the springs 123c and 125c, the other side of the arm 120 with the first and second coupling pins 123a and 125a as the axis of rotation. It can be gradually spread apart from the rotating body (110). When the spread of the arm 120 exceeds a certain level, the other end of the arm 120 may contact the stoppers 132 and 135 . For example, it means that the other end of at least one of the first and second arms 122 and 124 may contact one of the stoppers 132 and 135 . When the arm 120 is in contact with the stoppers 132 and 135, the rotation of the rotating body 110 may be stopped. That is, when the rotating arm 120 comes into contact with the fixed body 130 coupled to the second fixed plate 14 , it means that the rotating body 110 cannot rotate any more. Therefore, the fast unwinding of the strap that caused the rotating body to rotate at a certain speed or more is stopped, and accordingly, the falling of the patient, etc. while being transported does not occur. If the cause of the instantaneous quick loosening of the strap is removed, the centrifugal force does not act or acts small, so that the arm 120 is in close contact with the rotating body 110 again to unwind or wind the strap.

FIG. 6 is another embodiment of the fall arrester of FIG. 3 .

As shown here, the fall prevention unit 100 according to another embodiment of the present invention may include three arms 120 . For example, it means that the first, second, and third arms 122 , 124 , and 126 may be provided. For example, it means that the first, second, and third stoppers 122a, 124a, and 126a may be included.

If the number of the arms 120 and the stoppers 122a, 124a, and 126a is large, the loosening of the strap can be stopped more quickly in a situation in which the strap is suddenly released. In addition, even in a situation in which one of the structures of the arm 120 does not operate, the structure of the other arm 120 operates to prevent the strap from loosening.

7 and 8 are diagrams illustrating the operation of the hoist for a patient according to an embodiment of the present invention.

As shown in these drawings, the patient hoist 1 according to an embodiment of the present invention can effectively transport the patient even when the rails R1 and R2 cannot be extended due to the presence of a wall.

As shown in (a) of FIG. 7 , a wall P may be positioned between the first and second rails R1 and R2. Such a situation may be frequent when the patient hoist 1 is installed in an existing building. That is, if the wall (P) is removed, it means that there may be cases where the structural safety of the building may be affected, or the cost of removing the wall (P) may be large.

A subject may be connected to the first strap (S1). By carrying the subject and moving in the transport direction (D) along the first rail (R1), the hoist (1) for the patient may be located at the end point of the first rail (R1).

As shown in FIG. 7B , the third strap S3 extending from the second rail R2 side may be coupled to the first connecting ring 62 . That is, the second strap S2 may be connected to the first rail R1 side, and the third strap S3 may be connected to the second rail R2 side.

As shown in (a) of Figure 8, the second strap (S2) connected to the first rail (R1) side can be moved to the second rail (R2) side coupled. Even when the second strap (S2) is released from the first rail (R1), the patient hoist (1) is stably positioned due to the third strap (S3).

As shown in (b) of Figure 8, the third strap (S3) can be removed and the patient hoist (1) can be continuously moved in the transfer direction (D). Therefore, if the patient hoist 1 according to an embodiment of the present invention is used, the structure of the building is not significantly changed and the patient hoist 1 can be stably installed and used at a low cost.

The above detailed description should not be construed as restrictive in all respects and should be considered as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

1: Patient hoist 10: Drive part
20: motor 30: gear unit
40: rotation shaft 100: fall prevention part

Claims (5)

cover;
a motor located within the cover;
a gear unit driven by the motor;
a rotating shaft rotating by the gear unit;
a strap accommodating part in which the strap is unwound or wound according to the rotation direction of the motor transmitted through the rotation shaft; and
Including a fall prevention part connected to the strap receiving part,
The fall prevention unit,
And a rotating body rotating together with the rotational force of the strap receiving part,
At least one arm having one side hinged to the rotating body, and
at least one spring providing an elastic force so that the other side of the at least one arm is in close contact with the rotating body;
A patient hoist comprising at least one stopper contacting the other side of the at least one arm spaced apart from the rotating body when the centrifugal force caused by the rotation of the strap receiving part is greater than the elastic force. According to claim 1,
The stopper is
A hoist for a patient located in a fixed body in the form of a loop having a receiving portion larger than the diameter of the rotating body to accommodate the rotating body, at least one of which is spaced apart from each other toward the inside of the fixed body. 3. The method of claim 2,
It further comprises at least one fixing plate to which the motor is fixed,
The fixed body,
A patient hoist coupled to the at least one fixed plate regardless of rotation of the rotating body. According to claim 1,
It further comprises at least one fixing plate to which the motor is fixed,
The motor and the fall prevention unit,
A hoist for a patient positioned opposite to each other on one side and the other side of the at least one fixing plate. According to claim 1,
It further comprises at least one connecting ring so as to correspond to each other from the upper side of the cover to the outside,
the at least one linkage,
A patient hoist coupled to a strap extending from the second rail when the patient hoist moving along the first rail moves to a second rail that is not continuous with the first rail.

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