JP2008273652A - Lift device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lift device capable of surely executing an operation as indicated on a control switch by automatically stopping a drive means at upper-limit and lower-limit positions of a hook means, and of concentrating on assistance by preventing mechanical damage. <P>SOLUTION: This reeling type lift device 1 for assistance is composed by vertically-movably operably forming the hook member fixed to the other end side of a rope member 7 by arranging a reeling drum 26 on a drive shaft 24 provided rotatably forward and backward by operation of a drive means, and winding one end side of the rope member 7 around the reeling drum 26. The device is provided with an upper-limit stop mechanism 33 and a lower-limit stop mechanism 34 automatically stopping the drive means at the upper-limit position and the lower-limit position of the hook means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a take-up lift device for nursing care for lifting a physically handicapped person. In particular, the present invention relates to a take-up lift for nursing care that enables movement in a narrow place with a step or a complicated place.

The physically handicapped and the elderly, for example, have a step on the floor such as a bedside, toilet, bathroom, etc. There are many cases where it is not possible to move freely in a place. For this reason, many care lifts which move a handicapped person, an elderly person, etc. with a machine by a machine conventionally are provided.
As a type of conventional care lift, a floor type that is configured to be movable by providing a fixed type that moves up and down an arm that holds a suspension for placing a care recipient along a pillar fixed indoors and a body frame. There is a type or a ceiling traveling type configured to be movable along a rail arranged near the ceiling.

  Each of these conventional care lifts has the following drawbacks. First of all, the fixed type can move only within a limited space of one space, and can be applied to any place with different space shape or space area such as bedside, toilet, bathroom, entrance, etc. Is not limited. In addition, the floor traveling type is difficult to use in a Japanese house that is narrow and has many steps. Furthermore, in the ceiling traveling type, a large-scale housing remodeling is required to lay rails inside the house.

  In order to solve these problems, an articulated arm, an adapter for fixing the articulated arm in a predetermined position, a hoisting housing of a second arm attached to the articulated arm, A belt that can be taken in and out of the take-up unit, a driving means for taking in and out the belt, a hanging device on which a carer is placed, and a hook that is attached to the belt and is used to hold the hanging device A nursing-type hoisting lift having a stopping means has been proposed.

However, in this take-up lift for nursing care, there is no detailed description of the portion related to stopping the driving means when the belt is completely fed out, and if the driving means is further operated in this state, the belt is controlled by the control switch. It will operate in the state opposite to the display of. That is, there is a phenomenon in which it begins to rise despite pressing down switch. Moreover, there is no description about the stop in the state which wound up the belt, and there existed a possibility that it might lead to a failure | damage of a main body by winding up a belt.
JP-A-10-71178

  The problem to be solved is that it automatically stops at the upper limit and lower limit positions of the latching means, so that the operation as indicated by the control switch can be performed reliably, and mechanical damage is prevented, which helps. It is to provide a lifting device that can be concentrated.

According to the first aspect of the present invention, a winding drum is disposed on a driving shaft provided so as to be able to rotate forward and backward by operation of the driving means, and one end side of the rope member is wound around the winding drum, thereby the rope member In the take-up lift device for nursing care, which is configured to be able to move up and down the latching member fixed to the other end of the door, the driving means is automatically stopped at the upper limit position and the lower limit position of the latching member. An upper limit stop mechanism and a lower limit stop mechanism are provided.
According to a second aspect of the present invention, a winding drum is fastened to the drive shaft, the rope member is wound around the winding drum, and the rope is slidable in the axial direction of the drive shaft. A lower limit configured to provide a sliding drum to urge toward the winding side of the member, detect the winding state of the rope member by sliding of the sliding drum, and stop the driving means A stop mechanism is provided.
According to a third aspect of the present invention, at the upper limit position of the latching member, a limit bar provided so as to be swingable by raising the latching member is pivoted upward, and the drive of the limit bar is detected by detecting the swing of the limit bar. An upper limit stop mechanism configured to stop the means is provided.
According to a fourth aspect of the present invention, a friction boss is fixed to the end of the drive shaft, a take-up drum is arranged so as to be rotatable around the drive shaft, and the friction is applied to the end of the hollow shaft of the take-up drum. The bosses are fixed and the friction bosses are arranged adjacent to each other, and a brake spring is wound around the outer periphery of the friction bosses, and the clutch cover is inserted, and the clutch cover is attached in the winding direction of the rope member. When rotating toward, the friction boss on the hollow shaft side is rotated, and the brake spring hooked on the friction boss also acts to increase the diameter, and conversely when the clutch cover is rotated in the direction of feeding out the rope member The friction boss side on the drive shaft side acts to increase the diameter of the brake spring by the groove provided in the clutch cover so that the friction between each other can be reduced. Yonbosu against the urging force of the brake spring, winding the rope member by the rotational operation force of the clutch cover, or that includes a clutch mechanism composed configured to allow to feed.

In the first aspect of the invention, since the winding drum is arranged on the drive shaft that rotates by the operation of the driving means, the winding drum is configured to be rotatable forward and backward by the operation of the driving means. Then, by winding the one end side of the rope member around the winding drum by the operation of the driving means, the hooking member fixed to the other end side of the rope member can be moved up and down. The take-up type lift device includes an upper limit stop mechanism and a lower limit stop mechanism that automatically stop the driving means at the upper limit position and the lower limit position of the latch member. Accordingly, the driving means can be stopped by the upper limit stop mechanism before the latching member is in the mechanical locked state as in the case where the upper limit is exceeded. Therefore, damage to the machine can be prevented. In addition, since the lower limit stop mechanism can prevent the winding drum from being reversely wound in the normal winding direction, an accurate operation as indicated by the operation switch is performed. In addition, because of these, it is possible to concentrate on the caregiver's assistance during the lifting and lowering operation of the latch member, so that the device can be cared more safely.
According to a second aspect of the present invention, the take-up drum is fixed to the drive shaft, and the rope member is wound around the take-up drum, and the rope member is slidable in the axial direction of the drive shaft. A sliding drum is provided so as to be biased toward the winding side. Therefore, the rope member does not become loosely wound and is always wound in a normal state. The lower limit stop mechanism is configured to detect the position of the sliding drum when all the rope members are fed from the winding drum and stop the driving means. Therefore, as described above, there is no fear that the rope member is wound up by reverse winding. Further, since the configuration is simple, it can be made inexpensive.
In the invention of claim 3, at the upper limit position of the latching member, a limit bar which is swingably provided by raising the latching member is pivoted upward, and the drive means is detected by detecting the swing of the limit bar. The upper limit stop mechanism is configured to be stopped.
According to a fourth aspect of the present invention, a friction boss is fixed to the end of the drive shaft, and a winding drum is disposed so as to be rotatable around the drive shaft, and the friction is applied to the end of the hollow shaft of the winding drum. The bosses are fastened and the friction bosses are arranged adjacent to each other, and a brake spring is wound around the outer periphery of the friction bosses. Furthermore, when a clutch cover is inserted around the brake spring and the clutch cover is rotated in the winding direction of the rope member, the friction boss on the hollow shaft side is rotated and the friction boss is latched. When the clutch cover is rotated in the direction to feed out the rope member, the brake spring is also enlarged by the groove provided in the clutch cover on the friction boss side on the drive shaft side. By acting so that the friction bosses of each other resist the urging force of the brake spring, the winding drum can be rotated by the rotational operation force of the clutch cover, and the rope member can be wound or sent out. A clutch mechanism is provided. Therefore, even when the drive means fails for some reason, the latching means can be raised and lowered by manual operation.

  A take-up drum is arranged on a drive shaft that can be rotated forward and backward by the operation of the drive means, and one end side of the rope member is wound around the take-up drum, so that the other end side of the rope member is fixed. An upper limit stop mechanism and a lower limit stop for automatically stopping the drive means at the upper limit position and the lower limit position of the latch member in the take-up lift device for nursing care, wherein the latch member is configured to be movable up and down. It has a mechanism.

  Next, the present invention will be described with reference to the drawings. FIG. 1 is an overall perspective view showing an embodiment of a take-up lift device for care provided with a stop mechanism according to the present invention, and FIG. 2 is an explanatory view of the use state of the take-up lift device for care shown in FIG. FIG. 3 is a plan view showing the configuration of the second arm, and FIG. 4 is a sectional side view of the main part of the second arm shown in FIG.

First of all, a take-up lift device for care provided with a stop mechanism according to the present invention will be described.
This nursing-purpose take-up lift device 1 mainly includes a first arm 2 and a second arm 3 that are pivotably mounted, a driving means 4 and a take-up mechanism 5 incorporated in the second arm 3. A control switch 6 for operating the driving means 4, a rope member 7 wound around the winding mechanism 5, a latching means 8 attached to the tip of the rope member 7, and control of the driving means 4 The apparatus 9 is comprised.

As shown in FIGS. 1 and 2, the first arm 2 and the second arm 3 are configured to be rotatable with respect to each other. In the present embodiment, the two arms of the first arm 2 and the second arm 3 are exemplified. However, the arm may be composed of three or more arms. However, in this case, the degree of freedom of the movement range on the free end side of the arm is increased, but the turning operation in a state where a load is applied becomes somewhat difficult.
As shown in FIG. 1, the first arm 2 is configured to be detachably connectable to a mounting base 10 fixed to a wall surface by a connecting means 11, for example. The mounting base 10 is not limited to the one fixed to the wall surface as shown in the drawing, but may be a mounting base 13 having a structure that can be mounted on a column 12 installed in a bathroom, for example, as shown in FIG.
As the connecting means 11 for connecting the mounting base 10 and the first arm 2, as shown in FIG. 1, for example, the first between the holes of the upper and lower brackets 10 a, 10 a formed on the mounting base 10. The cylindrical member 2a formed in the arm 2 is inserted into the bracket 10a, 10a, 10a, and is configured by pins for insertion into the cylindrical member 2a. However, the connection means 11 is not limited to this configuration, and may be any configuration that allows the first arm 2 attached to the attachment bases 10 and 13 to be rotatable.
The first arm 2 attached to the attachment bases 10 and 13 can freely turn at the attachment position, and the other end can turn freely in a substantially horizontal plane.
Further, a vertical bearing hole 2 b is provided on the other side of the first arm 2, and a rotation support shaft 3 a fixed so as to protrude downward on the base end side of the second arm 3 is inserted. It is configured to be able to.

  Next, as shown in FIG. 3, the second arm 3 fixes a frame plate 15 bent in a substantially U shape on the upper surface of a substantially elliptical base plate 14 in a plan view in a state of being opened forward. A drive housing 18 is formed by fixing a plate 17 to which a bearing boss 16 is fixed to an open side of the frame plate 15. Further, a substantially U-shaped arm plate 19 is fixed in the axial direction of the bearing boss 16 in a state of being opened upward to constitute a winding housing 20. That is, the second arm 3 is formed by integrally forming the drive housing 18 and the take-up housing 20.

The driving means 4 is built in the drive housing 18, and the winding mechanism 5 is built in the winding housing 20.
First, the driving means 4 will be described.
The driving means 4 includes a motor 21 serving as a power source. A first gear 22 is attached to the output shaft of the motor 21, and a second gear 23 is provided in mesh with the first gear 22. A drive shaft 24 pivoted on the take-up housing 20 is fixed to the second gear 23 to form the drive means 4.
The motor 21 has a built-in speed reduction mechanism using, for example, a worm gear, and a motor that is in a brake state is used when the motor 21 does not rotate.

Next, the winding mechanism 5 will be described. The take-up mechanism 5 has a take-up drum 26 fastened to the drive shaft 24 supported by the bearing member 25 and the bearing boss 16 fixed to the front end portion of the take-up housing 20, and the second gear. 23 is configured to rotate synchronously with the motor 23. A flange 27 is formed on the winding drum 26 on the bearing member 25 side, and an attachment hole 27 a for the rope member 7 is formed in the flange 27. The rope member 7 whose one end is processed to have a large diameter is inserted into the attachment hole 27 a and is attached so as to be wound around the winding drum 26.
Further, a sliding drum 28 is inserted so as to be slidable from the other end side of the winding drum 26, and the sliding drum 28 applies a constant pressing force to the rope member 7. A spring 29 is attached to prevent the base of the spring 29 from coming off.
A pressing flange 30 for pressing the wound rope member 7 is fitted to the end of the sliding drum 28 on the winding side of the rope member 7, and a dog flange 31 is fitted to the other end side. It is worn.

And the control apparatus 9 of the motor 21 which is the said drive means 4 is comprised so that it can install in the position spaced apart from the 2nd arm 3, as shown in FIG. This considers the safety | security at the time of installing this lift apparatus 1 in a bathroom etc., for example. However, the control device 9 is not limited to that shown in FIG. 1 and may be configured to be incorporated in any of the arms 2 and 3. Further, it may be configured to be operated by a battery.
As shown in FIG. 1, the control device 9 rotates the motor 21 of the driving means 4 in the forward and reverse directions according to the input signal of the ascending switch 6a or descending switch 6b of the control switch 6 attached to the second arm 3. It is comprised as follows.

According to the driving means 4 and the winding mechanism 5 configured as described above, when the ascending side switch 6a of the control switch 6 is pressed, the motor 21 as the driving means 4 is rotated forward and the first gear 22 and the second gear 23 are thus rotated. The drive shaft 24 and the take-up drum 26 are rotated forward via the. The rope member 7 is wound around the winding drum 26 by the forward rotation of the winding drum 26. Thereby, the hanger 32 which is the latching means 8 latched by the other end part of the rope member 7 is pulled up.
Further, when the ascending switch 34a of the control switch 6 is pressed, the rope member 7 is gradually wound up as shown in FIG. 4, and the sliding drum 28 is slid toward the motor 21 against the biasing force of the spring 29. . At this time, since a certain urging force is applied to the sliding drum 28 by the spring 29, the rope member 7 is not loosely wound and does not cause a winding failure.
Conversely, when the lower switch 6 b of the control switch 6 is pressed, the motor 21 is rotated reversely, and the drive shaft 24 and the winding drum 26 are rotated reversely via the first gear 22 and the second gear 23. The rope member 7 is sent out from the winding drum 26 by the reverse rotation of the winding drum 26. Thereby, the hanger 32 hooked to the other end portion of the rope member 7 is configured to be lowered. At this time, the winding amount of the rope member 7 of the winding drum 26 is reduced, and the sliding drum 28 is slid to the counter-motor 21 side by the urging force of the spring 29 in conjunction with this.
In this way, the hanger 32 as the latching means 8 can be set to a desired height by pressing the ascending switch 6a or the descending switch 6b of the control switch 6 separately.

Next, the stopping mechanisms 33 and 34 at the upper and lower limit positions in the driving means 4 and the winding mechanism 5 will be described.
First, the upper limit stop mechanism 33 when the hanger 32 is wound up to the highest position will be described.
The upper limit stop mechanism 33 has holes 19 b and 19 b formed on the side of the through hole 19 a of the rope member 7 provided on the lower surface of the winding housing 20.
A limit bar 35 is swingably attached to the holes 19b and 19b. The detecting means 36 that operates by swinging the limit bar 35 upward is attached to a mounting plate 37 that is fixed in the winding housing 20.
And when this detection means 36 act | operates, it is controlled so that rotation of the said motor 21 stops.
In this embodiment, a micro switch is used as the detection means 36, but the detection means 36 is not limited to the micro switch, and any means capable of detecting the swing of the limit bar 38 may be used. Also, this control method may be a control for cutting the input signal of the control switch 6 or a control for cutting the current supplied to the motor 21. When this detection means 36 is activated, What is necessary is just to be controlled so that the motor 21 is stopped.
On the other hand, a hook portion 32 a is provided on the upper side of the hanger 32 so as to contact the limit bar 35, and when the rope member 7 is wound up and the hanger 32 approaches the second arm 3, this hook The part 32a pushes up the limit bar 35, and the detection means 36 is actuated accordingly. If the detection means 36 is operated, the rotation of the motor 21 as a drive source is stopped, so that the rotation continues until the drive means 4 and the winding mechanism 5 are in the mechanical lock state even if the ascending side switch 6a is kept pressed. Therefore, the lift device 1 can be prevented from being broken.
Therefore, since it can concentrate on the care of the cared person M raised with this hanger 32, it can be used safely.

Next, the lower limit stop mechanism 34 when the hanger 32 is sent to the lowest position will be described.
The lower limit stop mechanism 34 is configured to control the operation of the motor 21 by detecting the movement of the sliding drum 28. The rope member 7 is sent out from the winding drum 26 and the rope member 7 is wound. The sliding drum 28 comes closest to the flange 27 when it is not wound on the take-up drum 26, and the motor 21 is stopped by detecting this position by the detecting means 38. More specifically, the detecting means 38 is attached to a mounting plate 39 fixed to the take-up housing 20 so as to be operated by contacting the dog flange 31 at the position of the sliding drum 28. By the operation of the detecting means 38, The motor 21 is controlled to be stopped.
In the present embodiment, a micro switch is used as the detection means 38, but the detection means 38 is not limited to the micro switch, and may be any one that is operated by the dog flange 31. Further, this control method may be a control for cutting the input signal of the control switch 6 or a control for cutting the current supplied to the motor 21 as in the case of the upper limit stop means 33. Any device may be used as long as it is controlled so that the motor 21 is stopped when the detection means 38 is activated.
In the lower limit stop mechanism 34 configured as described above, the dog flange 31 of the sliding drum 28 is detected when the rope member 7 is completely fed out from the winding drum 26 even if the lowering switch 6b is continuously pressed. 38 is operated, and the motor 21 is stopped. Therefore, after the rope member 7 is sent out by the rotation of the motor 21, it is possible to prevent the rope member 7 from being wound in the reverse winding with respect to the normal winding direction and being in a state different from the display of the control switch 6. At this time as well, as described above, the user can concentrate on the care of the cared person M and can be operated safely.
In addition, if the detection means 38 for detecting the lower limit position is configured so that the position can be adjusted in the sliding direction of the sliding drum 28, it is set in accordance with a wheelchair to be used separately from the mechanical lower limit position. It has the effect of facilitating care.

In this embodiment, a control switch 6 is connected to the second arm 3 to facilitate the raising / lowering operation, and the winding drum 26 is moved by pressing the ascending side switch 6a or the descending side switch 6b of the control switch 6. By rotating, the rope member 7 is sent out from the winding housing 20 of the second arm 3, or the rope member 7 is wound up in the winding housing 20 of the second arm 3.
A hooking means 8 such as a hanger 32 with hooks 40, 40 is fixed to the tip of the rope member 7, and the hooks 40, 40 of the hooking means 8 are fixed to the hooks 40, 40 as shown in FIG. In addition, the lifting tool S for lifting the cared person M is hung. The hooking means 8 and the hanging tool S are not particularly limited to the illustrated configuration.

Next, the usage method of the winding type lift apparatus 1 for care of this invention is demonstrated.
First, the mounting base 10 shown in FIG. 1 (attached to the wall) and the mounting base 13 shown in FIG. 2 (attached to the support) are, for example, indoors such as a bedside or toilet, or a step such as a bathroom or entrance. Fix where you need to move between. This may be a plurality of places that are necessary places. And the 1st arm 2 and the 2nd arm 3 should just carry to a required place according to the care recipient's M care content, and should just be fixed by the connection means 11. FIG. Then plug the power cord into a wall outlet to supply power. In addition, it can be used in the state when it is battery-driven.

Here, as shown in FIG. 2, when used in the bathroom, a hanging tool S is laid on the cared person M who has moved by a wheelchair or the like, and the hanging tool S is hooked on the hooks 40, 40 of the hanger 32. To do. Thereafter, the ascending side switch 6 a of the control switch 6 is pushed, the driving means 4 is operated, and the rope member 7 is wound up by the winding mechanism 5. Then, the said hanger 32 is pulled up and the care receiver M rises. Then, after the cared person M is placed on a bathing table or the like and washed, the hanging tool S is again hooked on the hooks 40 and 40 of the hanger 32 and moved into the bathtub while performing ascending and descending operations. Let
While these operations are being performed, when the collar portion 32a of the hanger 32 pushes up the limit bar 35, the detection means 36 is activated at that time and the operation of the drive means 4 is stopped.
Further, when all the rope members 7 are sent out and the sliding drum 28 operates the detecting means 38, the operation of the driving means 4 can be stopped. Therefore, even when the user concentrates on mobile care and keeps pressing the control switch 6, mechanical damage can be prevented and the device can be used safely. Moreover, since the lower limit stop mechanism 34 is provided as described above, it is possible to prevent the rope member 7 from being wound in the reverse direction, so that the operation as indicated by the control switch 6 is reliably performed. Further, since the sliding drum 28 of the lower limit stop mechanism 34 is urged toward the winding side of the rope member 7 by the spring 29, the rope member 7 is not loosely wound around the winding drum 26 and is always in a normal state. It can be wound up with.

Next, another embodiment of the above-described take-up lift device 1 will be described.
The lift device 1 is configured so that the latching means 8 can be moved up and down by manual operation even when the drive means 4 malfunctions.
In addition, about the thing with the same structure as the lift apparatus 1 in Example 1 mentioned above, the same code | symbol shall be attached | subjected and description shall be abbreviate | omitted.

The lift device 1 is configured such that a drive shaft 24 connected to the drive means 4 via a first gear 22 and a second gear 23 and a hollow shaft 41 of the take-up drum 26 are coupled by a clutch mechanism 42. Is. FIG. 5 is a perspective view showing the main structure of the clutch mechanism 42, and FIG. 6 is an explanatory view of the operation of the clutch mechanism 42 shown in FIG.
More specifically, the second gear 23 is fixed to one end of the drive shaft 24, and the friction boss 43 is fixed to the other end. A hollow shaft 41 of the winding drum 26 is inserted so as to be rotatable around the drive shaft 24, and a friction boss 44 is fixed to an end portion on the friction boss 43 side. The shaft diameters of the friction bosses 43 and 44 that are in contact with each other are substantially the same, and a brake spring 45 is wound around the adjacent outer peripheral portion.
The friction boss 44 on the take-up drum 26 side is bent at one end of a brake spring 45 and hooked into a hole 44 a formed in the friction boss 44. The other end of the brake spring 45 is bent forward.
A clutch cover 46 is attached around the brake spring 45. The clutch cover 46 has a cylindrical shape, and an end portion is provided with an elliptical hole 46a in the circumferential direction. Further, a ring 47 provided with a U-shaped groove 47a is fixed inside, and the bent portion of the brake spring 45 is positioned in the groove 47a.
Further, the clutch cover 46 is formed with a through hole 46b so that the operation handle 48 can be inserted therethrough.

With the lift device 1 configured as described above, the latching means 8 can be moved up and down even when the drive means 4 malfunctions.
First, the action when raising is described. An operation handle 48 is inserted through the clutch cover 46 and rotated in the winding direction of the rope member 7 (clockwise in FIG. 5). At this time, the bolt 49 screwed to the friction boss 44 on the winding drum 26 side contacts the end of the hole 46 a of the clutch cover 46, and the friction boss 44 is wound in the winding direction of the winding drum 26. Rotate to At this time, the brake spring 45 spreads to a large diameter and is in a state of being rotatable with respect to the friction boss 43 on the drive shaft 24 side. Even if the hand is released at this time, the brake spring 45 is contracted to a small diameter and the friction bosses 43 and 44 are tightened, so that a constant height can be maintained. Even if the rotation of the operation handle 48 is continued, the bent portion of the brake spring 45 on the other side is rotated while sliding in the groove portion 47a of the ring 47 without contacting the end portion of the groove portion 47a.

  On the other hand, when the operation handle 48 is rotated in the direction in which the rope member 7 is fed out (counterclockwise in FIG. 5), the bolt 49 fixed to the friction boss 44 on the winding drum 26 side becomes a hole in the hole 46a. On the other hand, the bent portion of the brake spring 45 is in contact with the end surface of the groove 47a of the ring 47 while it is not in contact with the end portion of the portion 46a. Therefore, when the tightening force of the brake spring 45 is lowered and a heavy object is suspended, the force that descends becomes larger than the braking force and starts to descend. When the operation of the operation handle 48 is stopped in this state, the brake force of the brake spring 45 is restored and can be held at that height. Then, it can be lowered to a desired position by continuously operating the handle. Further, in a state where no load is applied to the hooking means 8, the brake spring 45 spreads to a state in contact with the inner diameter of the clutch cover 46, and then the friction boss 44 itself on the winding drum 26 side is sent in the direction of feeding the rope member 7. It can be rotated even when it is not loaded.

As described above, the lift device 1 according to the present embodiment includes the upper limit stop mechanism 33 and the lower limit stop mechanism 34 according to the first embodiment, and also includes the clutch mechanism 42 as described above, so that the drive unit 4 operates for some reason. It is convenient because it can be moved up and down manually even if it is not in the state.
As described above, the clutch mechanism 42 is interposed between the motor 21 and the drive shaft 24, or a motor equipped with a brake mechanism is used in this type of lift device. This is because it is difficult to rotate the output shaft of the motor 21 by rotating the drive shaft 24 from the other side.

Overall perspective view showing a take-up lift device for care provided with a stop mechanism Use state explanatory drawing of the take-up type lift for care shown in FIG. Plan view showing the configuration of the second arm Side view of the main part of the second arm Explanatory drawing showing the configuration of the clutch mechanism Main part plan view showing the clutch mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rewind type lift device for care 2 First arm 3 Second arm 4 Driving means 5 Winding mechanism 6 Control switch 7 Rope member 8 Latching means 9 Control device 24 Drive shaft 26 Winding drum 28 Sliding drum 33 Upper limit stop Mechanism 34 Lower limit stop mechanism 36 Detection means 38 Detection means 41 Hollow shaft 42 Clutch mechanism 43 Friction boss 44 Friction boss

Claims (4)

  A take-up drum is arranged on a drive shaft that can be rotated forward and backward by the operation of the drive means, and one end side of the rope member is wound around the take-up drum, so that the other end side of the rope member is fixed. An upper limit stop mechanism and a lower limit stop for automatically stopping the drive means at the upper limit position and the lower limit position of the latch member in the take-up lift device for nursing care, wherein the latch member is configured to be movable up and down. A take-up lift device characterized by comprising a mechanism.   The take-up drum is fixed to the drive shaft, and the rope member is wound around the take-up drum, and is slidable in the axial direction of the drive shaft and directed toward the take-up side of the rope member. Provided with a lower limit stop mechanism configured to stop the driving means by detecting a winding state of the rope member by sliding of the sliding drum. The winding type lifting device according to claim 1, wherein   At the upper limit position of the latching member, a limit bar provided so as to be swingable when the latching member is raised is pivoted upward, and the drive means is stopped by detecting the swing of the limit bar. The winding type lift device according to claim 1, wherein an upper limit stop mechanism is provided.   A friction boss is fastened to the end of the drive shaft, a winding drum is arranged in a rotatable state around the drive shaft, and the friction boss is fastened to the end of the hollow shaft of the take-up drum. When the friction bosses are arranged adjacent to each other, a brake spring is wound around the outer periphery of the friction bosses, a clutch cover is inserted, and the clutch cover is rotated in the winding direction of the rope member, the hollow shaft When the friction boss on the side is rotated, the brake spring hooked on the friction boss also acts to increase the diameter, and conversely, when the clutch cover is rotated in the direction of feeding the rope member, the friction boss on the drive shaft side On the other hand, the friction bosses of the brake bosses are separated from each other by acting so that the brake spring has a large diameter by a groove provided in the clutch cover. 4. The clutch mechanism according to claim 1, further comprising a clutch mechanism configured to wind or send out the rope member by a rotational operation force of the clutch cover against a biasing force of the spring. The winding type lifting apparatus as described in any one of Claims.

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