KR102572334B1 - The locking device of movement for slings of physical therapy - Google Patents

Abstract

A mobile locking device for a physical therapy sling according to an embodiment of the present invention includes a cylinder 11 having a gear 12 formed on one side to engage with a fixed gear 3; a fork bracket 13 that is integrally fixed to the cylinder 11 and has a pull line 6 connected to the opposite side of the gear 12; a first spring 20 installed in the cylinder 11; Fixed to the movable body 4, the first spring 20 is disposed on one side to push the cylinder 11 with the first spring 20, and the first and second key ways having different lengths on the inner surface of the cylinder (31, 32) are repeatedly formed concavely in a circular arrangement, and the inlets of all the first and second key ways (31, 32) have a first slope (33) inclined in one direction; It is disposed through the barrel 30, and the first guide protrusion 41 is inserted into the first key way 31 and moves linearly, and the end portion is inclined in the same direction as the first slope 33. a slider 40 shorter than the length of the first slope 33 and having a second slope 42 positioned at the middle of the outermost end point 34 of the first slope 33; It is rotatably assembled to the slider 40, and a second guide protrusion 52 is formed to be inserted into either one of the first key way 31 and the second key way 32, and the second A third slope 53 is formed at the end of the guide protrusion 52 to be inclined in the same direction as the first slope 33, and the third slope 53 is the first and second slopes 33 and 42. and a rotary cam 50 to act as a cam; and a second spring 60 disposed between the fork bracket 13 and the rotary cam 50 to push the rotary cam 50 away from the fork bracket 13 .

Description

The locking device of movement for slings of physical therapy}

The present invention relates to a movement locking device for a physical therapy sling that unlocks and moves a sling in a physical therapy device and locks the sling at the moved position.

In general, a physical therapy apparatus suspends a subject's body in the air to rehabilitate or strengthen muscles in a specific body part.

The physical therapy device may be installed on a structure that can install facilities such as a guide shaft on the ceiling or move them. The guide shaft may be installed to slide the movable body, and a sling may be mounted on the movable body.

A sling is a structure in which body belts are connected by ropes and suspended. A plurality of slings may be provided, for example, 2 to 6 may be installed, whereby the body may be floated in the air in a lying position, and may be moved to an appropriate position according to the purpose of rehabilitation treatment.

That is, the sling should be moved to an appropriate position according to the purpose of rehabilitation treatment or the physical condition of the treatment subject.

Conventionally known technology has a technology to stop by friction after moving the sling on the guide shaft, but when a force greater than the frictional force acts, it cannot maintain the stopped position and moves, so the sling cannot be fixed to the desired position. there is

Another conventionally known technique is to fix the sling to a stopped position by equipping the moving body with a locking device. The locking device is unlocked by pulling the pull line and locked when the pull line is released. This locking device has to move the sling while maintaining the pulled state when the sling is moved, and there is an inconvenience in that two operations must be performed at the same time.

KR 10-2193985 B1 KR 10-1781495 B1

Therefore, the technical problem to be achieved by the present invention is to provide a movement locking device for a physical therapy sling that allows the sling to be easily and quickly moved to a desired position in a physical therapy device and to restrict the movement of the sling that has been moved. It has a purpose.

In addition, another object of the present invention is to move for a physical therapy sling that can improve the convenience of controlling the movement of the sling by enabling locking and unlocking to be repeated every time the pull line is pulled and released once. to provide a locking device.

A mobile locking device for a physical therapy sling according to an embodiment of the present invention for achieving the above technical problem includes a cylinder 11 having a gear 12 formed on one side to engage with a fixed gear 3; a fork bracket 13 that is integrally fixed to the cylinder 11 and has a pull line 6 connected to the opposite side of the gear 12; a first spring 20 installed in the cylinder 11; Fixed to the movable body 4, the first spring 20 is disposed on one side to push the cylinder 11 with the first spring 20, and the first and second key ways having different lengths on the inner surface of the cylinder (31, 32) are repeatedly formed concavely in a circular arrangement, and the inlets of all the first and second key ways (31, 32) have a first slope (33) inclined in one direction; It is disposed through the barrel 30, and the first guide protrusion 41 is inserted into the first key way 31 and moves linearly, and the end portion is inclined in the same direction as the first slope 33. a slider 40 shorter than the length of the first slope 33 and having a second slope 42 positioned at the middle of the outermost end point 34 of the first slope 33; It is rotatably assembled to the slider 40, and a second guide protrusion 52 is formed to be inserted into either one of the first key way 31 and the second key way 32, and the second A third slope 53 is formed at the end of the guide protrusion 52 to be inclined in the same direction as the first slope 33, and the third slope 53 is the first and second slopes 33 and 42. and a rotary cam 50 to act as a cam; and a second spring 60 disposed between the fork bracket 13 and the rotary cam 50 to push the rotary cam 50 away from the fork bracket 13 .

In addition, the movement locking device for the physical therapy sling according to the embodiment of the present invention is integrally formed on the surface of the barrel 30 at a position that does not interfere with the fork bracket 13 and is fixed to the moving body 4 It can be configured by including a bracket 35 to be.

In addition, the movement locking device for a physical therapy sling according to an embodiment of the present invention may be configured to include a guide roller 5 installed on the moving body 4 to guide the movement of the pulling line 6. there is.

In addition, the rotary cam 50 may include a pocket 54 to accommodate a part of the second spring 60 to prevent the second spring 60 from being separated.

In addition, the movement locking device for a physical therapy sling according to an embodiment of the present invention includes a pin 14 formed to protrude from the fork bracket 13 to align the second spring 60 and prevent separation. can be configured.

Details of other embodiments are included in the detailed description and drawings.

The movable locking device for a physical therapy sling according to an embodiment of the present invention made as described above can be locked and unlocked by pulling the pull line, and thus the unlock is maintained, so an additional operation for unlocking is performed. It is possible to easily and quickly move the sling to a desired position in the physical therapy device without having to do it, and it is possible to limit the movement of the sling after the movement is completed.

In addition, in the movement locking device for a physical therapy sling according to an embodiment of the present invention, lock setting and unlocking can be repeated every time the pull line is pulled and released, thereby providing convenience in controlling the movement of the sling. can improve

1 is a view for explaining a physical therapy device to which a movement locking device for a physical therapy sling according to an embodiment of the present invention is applied.
2 is a view for explaining an example of a movement locking device for a physical therapy sling according to an embodiment of the present invention.
Figures 3 and 4 are views showing separated components to explain the configuration of the mobile locking device for physical therapy sling according to an embodiment of the present invention.
Figure 5 is a front view and a cross-sectional view for explaining the configuration of the barrel in the mobile locking device for physical therapy sling according to an embodiment of the present invention.
6 and 7 are views for explaining the operation of the movement locking device for the physical therapy sling according to an embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are shown by way of example to aid understanding of the present invention, and it should be understood that the present invention may be variously modified and practiced differently from the embodiments described herein. However, when it is determined that a detailed description of a known function or component related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description and specific illustration thereof will be omitted. In addition, the accompanying drawings may not be drawn to an actual scale in order to aid understanding of the present invention, but the sizes of some components may be exaggerated.

Meanwhile, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

On the other hand, terms to be described later are terms set in consideration of functions in the present invention, and since they may vary according to the intention or custom of the producer, the definitions should be made based on the contents throughout this specification.

Like reference numbers designate like elements throughout the specification.

First, referring to FIG. 1, a physical therapy device will be described. 1 is a view for explaining a physical therapy device to which a movement locking device for a physical therapy sling according to an embodiment of the present invention is applied.

As shown in Figure 1, the physical therapy device may be arranged side by side the guide shaft (1) and the central structure (2). The guide shaft 1 or the central structure 2 is disposed in the air and may be installed on a ceiling, for example, or mounted on a structure that can be moved.

A fixed gear 3 may be disposed in the central structure 2, and the fixed gear 3 is shown as an example disposed in a horizontal direction in FIG. can be placed as

The movable body 4 is installed on the guide shaft 1 and can move along the guide shaft 1, and the body weight of the treatment subject can act thereon.

In addition, although only one example of the movable body 4 is shown in FIG. 1, a plurality can be installed.

A movement locking device for a physical therapy sling according to an embodiment of the present invention may be installed on the moving body 4.

Hereinafter, a movement locking device for a physical therapy sling according to an embodiment of the present invention will be described with reference to FIGS. 2 to 7 . 2 is a view for explaining an example of a movement locking device for a physical therapy sling according to an embodiment of the present invention. Figures 3 and 4 are views showing separated components to explain the configuration of the mobile locking device for physical therapy sling according to an embodiment of the present invention. Figure 5 is a front view and a cross-sectional view for explaining the configuration of the barrel in the mobile locking device for physical therapy sling according to an embodiment of the present invention. 6 and 7 are views for explaining the operation of the movement locking device for the physical therapy sling according to an embodiment of the present invention.

A movement locking device for a physical therapy sling according to an embodiment of the present invention includes a movable unit 10, first and second springs 20 and 60, a barrel 30, a slider 40 and a rotary cam 50. can be configured including

The movable unit 10 may include a cylinder 11 and a fork bracket 13.

A gear 12 is formed on one side of the cylinder 11 to mesh with the fixed gear 3. In addition, an accommodation space may be provided on one side of the cylinder 11 .

As shown in FIGS. 3 and 4 , the fork bracket 13 may be integrally fixed to the cylinder 11 , and a pull line 6 may be connected to the opposite side of the gear 12 . That is, when pulling or releasing the pull line 6, the fork bracket 13 moves along with the cylinder 11.

The fork bracket 13 may have a hook 15 disposed on one side, and a pull line 6 may be tied to the hook 15. Hooks 15 may utilize U-bolts and may be configured as a bracket with holes formed thereon.

The first spring 20 may be installed in the cylinder 11 . In more detail, the first spring 20 may be accommodated in the accommodation space of the cylinder 11, and thus the first spring 20 may be aligned in place without being arbitrarily separated. The first spring 20 is a compression spring and may act as a restoring force in an expanding direction.

The barrel 30 may be fixed to the moving body 4 . In addition, the first spring 20 may be disposed on one side of the barrel 30, and thus the cylinder 11 may be pushed by the first spring 20.

In addition, as shown in (a) of FIG. 5, in the barrel 30, the first and second key ways 31 and 32 may be formed concavely with a first height d1 on the inner surface of the cylinder, and may be formed in a circular shape. It can be formed repeatedly in an array.

As shown in (b) of FIG. 5, the first key way 31 has a first length s1, and the second key way 32 has a second length s2 shorter than the first length s1. have Meanwhile, although one end of the first key way 31 is shown as being blocked, it may be formed to pass through to the end of the barrel 30 .

In addition, as shown in FIGS. 4 and 5, the first slope 33 may be formed at the entrances of all the first and second key ways 31 and 32 to be inclined in one direction.

As shown in FIG. 6 , the slider 40 may be disposed passing through the barrel 30 .

In addition, as shown in FIG. 3 of the slider 40, the first guide protrusion 41 may protrude on the outer surface to have a second height d2.

As shown in FIG. 6, the first guide protrusion 41 is inserted into the first key way 31, whereby the slider 40 suppresses rotational motion in the barrel 30 and only linear motion. can do.

In addition, a second slope 42 may be formed at an end of the slider 40 . The second slope 42 is inclined in the same direction as the first slope 33 and is shorter than the length of the first slope 33 .

In particular, the outermost end point 34 of the first slope 33 is located in the middle of the second slope 42 when viewed from the side.

The rotary cam 50 is provided in the form of a circular movement and inserted into the slider 40 so as to be rotatably assembled to the slider 40 as shown in FIG. 6 .

In addition, the rotary cam 50 may be formed with a second guide protrusion 52 to be inserted into any one of the first key way 31 and the second key way 32, and have a third height d3. ) has

In addition, a flange 51 may be formed at an end of the rotary cam 50 . When the rotary cam 50 linearly moves to enter the barrel 30, the flange 51 may set an entry limit by making the end point 34 of the first slope 33 contact the flange 51.

In addition, as shown in FIGS. 3 and 4, the rotary cam 50 has a third slope 53 inclined in the same direction as the first slope 33 at the end of the second guide protrusion 52. can be formed

When the rotary cam 50 moves linearly with respect to the barrel 30, the third slope 53 may act as a cam with the first slope 33 at some point depending on where it is located, and at other times the second slope 53 may act as a cam. It can act as a cam with the slope 42.

As shown in FIGS. 3, 4, and 6, the second spring 60 is disposed between the fork bracket 13 and the rotary cam 50 and moves from the fork bracket 13 to the rotary cam ( 50) can be pushed out.

The movement locking device for the physical therapy sling according to an embodiment of the present invention configured as described above will be described with reference to FIG. 6 .

6 is shown to explain and help understanding the process of unlocking from a locked state, and is shown for each scene step from (a) to (d), but in reality, this process is implemented as one continuous operation.

6(a) shows a state in which the gear 12 has advanced, and is in a locked setting state. Looking more specifically, the second guide protrusion 52 of the rotary cam 50 has entered the depth of the first key way 31 of the barrel 30, and the slider 40 is due to the rotary cam 50 It is pushed to enter the depth of the first key way 31.

On the other hand, since the rotary cam 50 is moved to the inside of the barrel 30, there is no obstruction to the movement of the movable unit 10 toward the forward position, and the first spring 20 will act as a restoring force. Unit 10 is moved to an advanced position to advance gear 12 . As the gear 12 advances, it enters a locked setting state as shown in FIG. 7(a).

The mobile locking device for a physical therapy sling according to an embodiment of the present invention performs physical therapy on a subject to be treated in a lock setting state.

After that, when the position of the sling is to be moved, the pull line 6 is pulled once. When the pull line 6 is pulled, the movable unit 10 retracts, compresses the first spring 20, and the gear 12 separates from the fixed gear 3, as shown in FIG. 6(b).

As the movable unit 10 moves backward, the slider 40 is pushed in the retracting direction, and the slider 40 pushes the rotary cam 50. In the rotary cam 50 , the second guide protrusion 52 of the rotary cam 50 may be pushed out of the first key way 31 of the barrel 30 .

Then, as shown in (c) of FIG. 6, the rotary cam 50 rotates in the direction indicated by the arrow by the action of the cam.

The rotation of the rotary cam 50 will be described in detail. The second spring 60 retracts along with the retracting movement of the movable unit 10, but still acts as a restoring force on the rotary cam 50 toward the barrel 30.

When the second guide protrusion 52 is located on the first key way 31, the rotary cam 50 cannot rotate and can only move in a straight line, but the second guide protrusion 52 is positioned on the first key way 31. ), the rotary cam 50 cannot rotate freely. At this time, the third slope 53 and the second slope 42 act as cams, so that the rotary cam 50 rotates.

Thereafter, (d) of FIG. 6 is a state in which the pull line 6 is placed. When the pull line 6 is released, the movable unit 10 is moved forward by the restoring force of the first spring 20 . As the movable unit 10 moves forward, the slider 40 is released from restraint and can freely move linearly in any direction.

Since the second spring 60 always acts as a restoring force in the direction of pushing the rotary cam 50, when the movable unit 10 moves forward, the rotary cam 50 moves forward together and moves the slider 40 toward the barrel 30. ) is pushed into the

Thereafter, when the rotary cam 50 contacts the first slope 33 of the barrel 30 as the forward movement of the rotary cam 50 moves, the rotary cam 50 rotates by acting as a cam from that moment.

The rotary cam 50 simultaneously moves forward and rotates, so that the second guide protrusion 52 can be positioned on the second key way 32 .

That is, since the rotary cam 50 is blocked by the second key way 32, forward movement is restricted, and thus forward movement of the movable unit 10 is restricted and stopped.

Comparing (a) and (d) of FIG. 6, since the barrel 30 will be fixed to the moving body 4, its position does not change and can be displayed as a reference line for comparison.

Comparing the ends of the gear 12 with (a) and (d) of FIG. 6, it can be seen that there is a difference by the distance (S). That is, since the gear 12 is at a position retracted by the distance S compared to the locked setting state, the engagement with the fixed gear 3 is released and the locking state can be obtained as shown in FIG. 7(b). .

In the unlocked state, since the gear 12 and the fixed gear 3 are not engaged, the moving body 4 can move freely on the guide shaft 1.

Transitioning from the locked state to the unlocked state means that the second guide protrusion 52 moves away from the first key way 31 and is inserted into the second key way 32 as described above.

Likewise, switching from the unlocked state to the locked state is a process in which the second guide protrusion 52 is detached from the second keyway 32 and inserted into the first keyway 31 . That is, when the pull line 6 is pulled in the state of FIG. 6 (d), the slider 40 pushes the rotary cam 50 and the second guide protrusion 52 escapes the second key way 32. At the moment, the third slope 53 and the second slope 42 rotate while acting as a cam first, and when the pull line 6 is released, the rotary cam 50 moves forward and the third slope 53 and the first slope ( 33) and rotates while acting as a cam, and the second guide protrusion 52 is inserted into the first key way 31. Since the first length s1 of the first key way 31 is significantly longer than the second length s2, the first key way 31 can move forward to a longer distance.

As shown in Fig. 6(a), the rotary cam 50 does not interfere with the forward movement of the movable unit 10 by being moved forward.

Therefore, by moving the movable unit 10 forward as much as possible, the gear 12 can be engaged with the fixed gear 3, and eventually the movement of the moving body 4 can be suppressed.

Since the sling will be installed on the movable body 4, the movement of the sling can be suppressed by suppressing the movement of the movable body 4.

The mobile locking device for a physical therapy sling according to an embodiment of the present invention can be locked and unlocked by pulling the pull line 6, and thus the unlock is maintained, so that there is no additional operation for unlocking. In the physical therapy device, the sling can be easily and quickly moved to a desired position, and the movement of the sling can be restricted.

In addition, in the movement locking device for a physical therapy sling according to an embodiment of the present invention, lock setting and unlocking can be repeated every time the pull line 6 is pulled and released, thereby controlling the movement of the sling. can improve convenience.

On the other hand, as shown in FIGS. 1 and 7 , a bracket 35 may be formed on the surface of the barrel 30 . The bracket 35 may be integrally formed with the barrel 30 at a position where it does not interfere with the fork bracket 13 and may be fixed to the moving body 4 .

That is, the mobile locking device for the physical therapy sling according to the embodiment of the present invention can be stably placed and firmly fixed at a specific position of the mobile body 4 with the bracket 35.

On the other hand, the movement locking device for a physical therapy sling according to an embodiment of the present invention may be configured to include a guide roller 5 as shown in FIG.

A guide roller 5 may be installed on the movable body 4 and guide the movement of the pull line 6 .

To elaborate on this, the forward and backward movement direction of the movable unit 10 may be horizontal or vertical, or may be disposed inclined according to the will of the manufacturer.

In any case, the end of the pull line 6 can be hung in the direction in which gravity acts.

That is, although the pull line 6 can always be pulled in the direction of gravity, it may not coincide with the forward and backward movement direction of the movable unit 10 .

Accordingly, the guide roller 5 causes the pull line 6 to bend, so that regardless of the position in which the movable unit 10 is disposed, the user can always pull the pull line 6 in a familiar direction and operate it, and the manufacturer The design of the physical therapy device can be made more flexible.

On the other hand, the mobile locking device for a physical therapy sling according to an embodiment of the present invention may form a pocket 54 in the rotary cam 50 as shown in FIG. 4 .

The pocket 54 can accommodate a part of the second spring 60 to prevent the second spring 60 from being separated. In addition, it is possible to provide a longer length of the second spring 60, whereby even if the distance between the fork bracket 13 and the rotary cam 50 changes, a restoring force can be stably applied to the rotary cam 50.

On the other hand, in the mobile locking device for a physical therapy sling according to an embodiment of the present invention, pins 14 may be further formed on the fork bracket 13 as shown in FIG. 3 . The pin 14 may be formed to protrude from the fork bracket 13, thereby aligning the second spring 60 and preventing separation.

On the other hand, a part of the pin 14 can be accommodated in the pocket 54, whereby the second spring 60 can be more strongly suppressed from being arbitrarily separated, and the second spring 60 can be separated from the second spring 60. Failures that may occur can be prevented.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. You will be able to.

Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later, and all derived from the meaning and scope of the claims and equivalent concepts thereof. Changes or modified forms should be construed as being included within the scope of the present invention.

The movement locking device for a physical therapy sling according to an embodiment of the present invention may be used to unlock and move a sling in a physical therapy device or lock the sling in a moved position.

1: guide shaft 2: central structure
3: fixed gear 4: moving body
5: guide roller 6: pull line
10: movable unit 11: cylinder
12: gear 13: fork bracket
14: pin 15: hook
20, 60: first and second springs
30: barrel 31, 32: first and second key ways
33: first slope 34: end point
35: bracket
40: slider
41: first guide protrusion 42: second slope
50: rotary cam
51: flange 52: second guide protrusion
53: third slope 54: pocket
60: second spring

Claims (5)

A cylinder 11 having a gear 12 formed on one side to engage with the fixed gear 3;
a fork bracket 13 that is integrally fixed to the cylinder 11 and has a pull line 6 connected to the opposite side of the gear 12;
a first spring 20 installed in the cylinder 11;
Fixed to the movable body 4, the first spring 20 is disposed on one side to push the cylinder 11 with the first spring 20, and the first and second key ways having different lengths on the inner surface of the cylinder (31, 32) are repeatedly formed concavely in a circular arrangement, and the inlets of all the first and second key ways (31, 32) have a first slope (33) inclined in one direction;
It is disposed through the barrel 30, and the first guide protrusion 41 is inserted into the first key way 31 and moves linearly, and the end portion is inclined in the same direction as the first slope 33. a slider 40 shorter than the length of the first slope 33 and having a second slope 42 positioned at the middle of the outermost end point 34 of the first slope 33;
It is rotatably assembled to the slider 40, and a second guide protrusion 52 is formed to be inserted into either one of the first key way 31 and the second key way 32, and the second A third slope 53 is formed at the end of the guide protrusion 52 to be inclined in the same direction as the first slope 33, and the third slope 53 is the first and second slopes 33 and 42. and a rotary cam 50 to act as a cam; and
a second spring 60 disposed between the fork bracket 13 and the rotary cam 50 to push the rotary cam 50 away from the fork bracket 13;
Movement locking device for a physical therapy sling comprising a.
According to claim 1,
a bracket 35 integrally formed on the surface of the barrel 30 at a position that does not interfere with the fork bracket 13 and fixed to the moving body 4;
Movement locking device for a physical therapy sling comprising a. According to claim 1,
a guide roller 5 installed on the movable body 4 to guide the movement of the pull line 6;
Movement locking device for a physical therapy sling comprising a. According to claim 1,
a pocket 54 for preventing separation of the second spring 60 by accommodating a part of the second spring 60 in the rotary cam 50;
Movement locking device for a physical therapy sling comprising a. According to claim 4,
a pin 14 protruding from the fork bracket 13 to align the second spring 60 and prevent separation;
Movement locking device for a physical therapy sling comprising a.

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