TWI715085B - Rhythm exercising and standing assistant equipment - Google Patents

Abstract

The present disclosure provides a rhythm exercising and standing assistant equipment including a base, a frame unit, a seat unit, a vibrating unit and a standing assistant unit. The seat unit is disposed at the frame unit and includes a seat portion. The vibrating unit is disposed at the base. The vibrating unit pushes the frame to cause the seat to be vibrated. The standing assistant unit is connected to the seat unit. The standing assistant unit is configured to allow a rear end of the seat portion to be raised relative to a front end of the seat portion. Therefore, the vibrating unit is to vibrate the seat unit, and since the rear end is raised relative to the front portion, the seat portion is inclined to assist a user to stand up. The rhythm exercising and standing assistant equipment is functional and convenient.

Description

Rhythmic exercise and stand-up assist device

The present invention relates to an exercise device, and in particular to a rhythmic exercise and rise assist device with rhythm and rise assist functions.

Due to the popularization of physical fitness and health concepts, modern people pay more and more attention to exercise. In addition to outdoor sports such as running, cycling and playing ball, they also go to fitness centers for muscle training to increase blood circulation, improve metabolism, and promote the body health. However, each person's body can accept different exercise intensity and physical health conditions, so there are limitations in the use of fitness equipment. So some people in the industry have developed simple vibration motion devices to reduce the difficulty of motion and make it easy for everyone to use.

The conventional vibration motion device includes a platform and at least one vibration unit, and the platform can be driven to vibrate up and down by the vibration unit. When the user stands on the platform, the human body will vibrate along with the platform, and then drive the whole body muscles to vibrate to achieve the exercise effect. Since this kind of exercise does not require a complicated sequence of actions, it can be exercised only by standing on the device, so it is widely loved by the elderly and children.

However, the vibration motion device still has its limitations. Some people with inconvenient mobility or long-term bed rest cannot stand, and even less able to stand in vibration motion. The movement device can only rely on the assistance of others to do general simple limb stretching, which causes the physical condition to become weaker. In addition, since many elderly people or patients suffer from dizziness or inner ear balance syndrome, these users cannot keep their head and neck vibrating for a long time, and they also form another group that cannot stand on a vibratory exercise device.

Therefore, some companies have developed a vibratory motion device that can be seated. This vibratory motion device has a seat for users to ride. However, for users with foot injuries or weak feet, getting up from the seat is not an easy action In view of this, how to effectively improve the structure of such vibratory motion devices or rhythmic motion devices to make them more convenient to use has become the goal of the relevant industry.

The invention provides a rhythmic movement and a rising assist device, which can assist a user to get up through the configuration of the structure.

According to one embodiment of the present invention, there is provided a rhythmic motion and body assisting device, which includes a base, a base frame unit, a seat unit, a vibration unit, and a body assisting unit. The base frame unit is pivoted on the base, the seat unit is arranged on the base frame unit and includes a seat cushion portion, the vibration unit is arranged on the base, and the vibration unit pushes the base frame unit to link the seat unit to vibrate. The getting-up auxiliary unit is connected to the seat unit, and the getting-up auxiliary unit operates to raise a rear end of the seat cushion portion relative to a front end of the seat cushion portion.

Thereby, the vibrating unit can vibrate the seat unit, and the rear end of the seat cushion can be raised relative to the front end, and the seat cushion can be tilted, which helps assist The user gets up, thereby enhancing the functionality and convenience of the rhythmic exercise and the getting up assist device.

According to the plural embodiments of the aforementioned rhythmic motion and rising aid device, the rising aid unit may include a frame, two first links, two second links and a body driver. The frame is connected to the base frame unit, the two first connecting rods are respectively pivotally connected to the two sides of the seat unit, the lower end of each first connecting rod is pivoted to the frame and one upper end is pivoted to the seat cushion. Two second links are pivotally connected to the two sides of the seat unit, the lower end of each second link is pivotally connected to the frame and one upper end is pivotally connected to the seat cushion; the rise driver is connected to the seat cushion to drive the seat cushion Lift. Wherein, each first link is closer to the front end of the cushion portion than each second link, and each first link has a first length, each second link has a second length, and each first length is smaller than each Two length.

According to the plural embodiments of the aforementioned rhythmic motion and stand-up assist device, there may be a first distance between the lower end of the first link and the lower end of the second link, and the upper end of the first link and the second link There may be a second distance between the upper ends, and the first distance is greater than the second distance. Alternatively, there may be a first height between the upper end of the first link and the cushion portion, and there may be a second height between the upper end of the second link and the cushion portion, and the first height is greater than the second height. Alternatively, the rising driver may be pivotally connected between the frame and the front end of the cushion portion.

According to the plural embodiments of the aforementioned rhythmic motion and rising aid device, the base frame unit may include a frame, two long slots, two moving parts, and a horizontal drive. The frame is pivotally connected to the base, and the two long slots are arranged at intervals In the frame, the two moving parts correspond to the two long grooves one by one, each moving part is limited to move in each long groove, and the two moving parts are pivotally connected to the two sides of the frame, and the horizontal drive is arranged at On the frame, the horizontal drive drives the moving parts, so that the frame-linked seat unit is displaced in a moving direction, which is parallel to the long side of each long slot.

According to the plural embodiments of the aforementioned rhythmic motion and rising aid device, it may further include two support rods, the two support rods are respectively arranged on two sides of the frame, one end of each support rod is pivotally connected to the frame and the other end is pivotally connected to the base. Alternatively, the aforementioned rhythmic motion and rise aid device may further include a plurality of elastic pads located between the frame and the cushion portion.

According to the plural embodiments of the aforementioned rhythmic motion and rising aid device, a seat driving unit may be further included, and the seat unit may further include a seat back and a footrest part, the seat back is pivoted on the seat cushion part, and the seat back There is a first included angle with the seat cushion part, the foot cushion part is pivoted on the seat cushion part, and there is a second included angle between the foot cushion part and the seat cushion part, wherein the seat driving unit drives the seat unit to make the first included angle Or the second angle changes. Alternatively, a connection line may pass through the front end and the back end of the seat cushion, and an acute angle is formed between the connection line and a horizontal line, and the acute angle is greater than or equal to minus 15 degrees and less than or equal to plus 40 degrees.

10‧‧‧Rhythmic exercise and stand-up aids

1100‧‧‧Base

1200‧‧‧Base frame unit

1210‧‧‧Frame

1220‧‧‧Connecting piece

1230‧‧‧Pivot

1300‧‧‧Seat Unit

1310‧‧‧Chair Cushion

1311‧‧‧Front end

1312‧‧‧Backend

1320‧‧‧Chair Back

1800‧‧‧Seat drive unit

1810‧‧‧Linear actuator

1820‧‧‧Connecting rod set

1900‧‧‧Vibration unit

20‧‧‧Rhythmic exercise and stand-up aids

2200‧‧‧Base frame unit

2210‧‧‧Frame

2240‧‧‧Long slot

2250‧‧‧moving parts

2260‧‧‧Horizontal Drive

2261‧‧‧Motor

1330‧‧‧Foot Pad

1400‧‧‧Get up assist unit

1410‧‧‧First Link

1411‧‧‧Upper

1412‧‧‧Bottom

1420‧‧‧Second Link

1421‧‧‧Upper

1422‧‧‧Bottom

1430‧‧‧Frame

1440‧‧‧Get up and drive

1441‧‧‧Motor

1442‧‧‧Drive lever

1600‧‧‧Support Rod

1700‧‧‧Elastic gasket

2262‧‧‧Screw

2263‧‧‧Interlocking Department

2300‧‧‧Seat Unit

2430‧‧‧Frame

D1‧‧‧First distance

D2‧‧‧Second distance

H1‧‧‧First height

H2‧‧‧Second height

L1‧‧‧First length

L2‧‧‧Second length

P1‧‧‧Connect

P2‧‧‧Horizontal line

θ‧‧‧Acute angle

Fig. 1 is a schematic perspective view of a rhythmic movement and stand-up assist device according to an embodiment of the present invention; Fig. 2 is a partial exploded perspective schematic view of the rhythmic exercise and stand-up assist device of Fig. 1; Fig. 2 is a schematic side view of the local explosion of the rhythmic motion and stand-up assist device; Fig. 4 shows a schematic side view of the rhythmic exercise and stand-up assist device of Fig. 1; Fig. 5 shows a schematic side view of the rhythmic exercise and stand-up assist device of Fig. 1; Fig. 6 shows a schematic view of the other side Fig. 7 is a schematic diagram showing the different positions of the seat cushion of the rhythmic movement and the stand-up assisting device; Fig. 7 shows a partial exploded perspective view of a rhythmic movement and the stand-up assisting device according to another embodiment of the present invention; and Fig. 8 shows Figure 7 is a schematic side view of the rhythmic exercise and stand-up assist device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, the reader should understand that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. To simplify the drawings, some conventionally used structures and elements will be shown in a simple schematic manner in the drawings; and repeated elements may be represented by the same or similar numbers.

In addition, when a component (or mechanism or module, etc.) is “connected”, “configured” or “coupled” to another component in this document, it can mean that the component is directly connected, directly disposed, or directly coupled to another component It can also mean that an element is indirectly connected, indirectly disposed, or indirectly coupled to another element, that is, there are other elements between the element and another element. When it is clearly stated that a certain element is "directly connected", "directly arranged" or "directly coupled" to another element, it means that no other element is between the element and another element. The terms first, second, third, etc. are only used to describe different elements or components, and there are no restrictions on the elements/components themselves. Therefore, the first element/component can also be referred to as the second element/component. And the combination of components/components/mechanisms/modules in this article is not a combination of general well-known, conventional or conventional in this field. It cannot be judged whether the combination relationship is based on whether the component/component/mechanism/module itself is conventional It can be easily completed by ordinary knowledgeable persons in the technical field.

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, in which Fig. 1 shows a three-dimensional schematic diagram of a rhythmic exercise and stand-up assist device 10 according to an embodiment of the present invention , Figure 2 shows a partial exploded perspective view of the rhythmic motion and stand-up assist device 10 in Figure 1; Figure 3 shows a partial exploded side view of the rhythmic motion and stand-up assist device 10 in Figure 2; Figure 1 shows a schematic side view of the rhythmic exercise and rise assist device 10 in Figure 1, Figure 5 shows a schematic diagram of the other side view of the rhythmic exercise and rise assist device 10 in Figure 1, and Figure 6 shows the figure 1 A schematic diagram of different positions of the seat cushion 1310 of the rhythmic motion and the rising aid device 10. The rhythmic motion and rising assistance device 10 includes a base 1100, a base frame unit 1200, a seat unit 1300, a vibration unit 1900 (see FIG. 4), and a body assistance unit 1400.

The base frame unit 1200 is pivoted on the base 1100, the seat unit 1300 is disposed on the base unit 1200 and includes a cushion portion 1310, the vibration unit 1900 is disposed on the base 1100, and the vibration unit 1900 pushes the base unit 1200 to link the seat unit 1300 vibration. The rising auxiliary unit 1400 is connected to the seat unit 1300, and the rising auxiliary unit 1400 operates to raise a rear end 1312 of the seat cushion portion 1310 relative to a front end 1311 of the seat cushion portion.

Thereby, the vibrating unit 1900 can vibrate the seat unit 1300, and through the rear end 1312 of the seat cushion 1310 rises relative to the front end 1311, the seat cushion 1310 can be tilted, which helps the user to get up, thereby improving the rhythmic motion and The functionality and convenience of the stand-up assist device 10. The details of the rhythmic motion and rise assist device 10 will be described in detail later.

The base frame unit 1200 may include a frame body 1210, two pivot parts 1230, and two connecting members 1220. The two pivot parts 1230 are symmetrical to each other and connected below the frame body 1210. The two pivot parts 1230 are pivotally connected to the base 1100 to make the base frame The unit 1200 can pivot relative to the base 1100, the two connecting members 1220 are located above the frame body 1210, and the two connecting members 1220 are respectively disposed on two sides of the frame body 1210.

The vibration unit 1900 can be arranged between the base unit 1200 and the base 1100, and the vibration unit 1900 is located in a front half of the base 1100 and includes a motor (not labeled), a transmission group (not labeled), and an eccentric wheel (not labeled) ), the transmission group is driven by a motor to rotate the eccentric wheel. The eccentric wheel will continuously push against the frame body 1210, so that the base frame unit 1200 can pivot relative to the base 1100 to produce a vibration effect.

The lifting assist unit 1400 may include a frame 1430, two first links 1410, two second links 1420 and a body driver 1440. The frame 1430 is connected to the base frame unit 1200, the two first links 1410 are respectively pivotally connected to the two sides of the seat unit 1300, the lower end 1412 of each first link 1410 is pivotally connected to the frame 1430 and the upper end 1411 is pivotally connected to the chair垫部1310。 1310. Two second links 1420 are respectively pivotally connected to two sides of the seat unit 1300, and each second link 1420 The lower end 1422 is pivotally connected to the frame 1430 and an upper end 1421 is pivotally connected to the seat cushion 1310; a rise driver 1440 is connected to the seat cushion 1310 to drive the seat cushion 1310 to lift. Each first link 1410 is closer to the front end 1311 of the cushion portion 1310 than each second link 1420, and each first link 1410 has a first length L1, and each second link 1420 has a second length L2 , Each first length L1 is smaller than each second length L2.

The frame 1430 is pivotally connected to the connecting member 1220. Since the two first links 1410 and the two second links 1420 are pivotally connected between the frame 1430 and the seat unit 1300, the seat unit 1300 is indirectly pivoted to the base frame unit 1200 When the base frame unit 1200 is pushed by the vibration unit 1900 to vibrate, the seat unit 1300 will be linked and vibrate along with it. In addition, since the first length L1 is less than the second length L2, the first link 1410 and the second link 1420 have different radii of rotation. Therefore, when the seat cushion 1310 is driven up and down, the rear end 1312 of the seat cushion 1310 It can rise relative to the front end 1311 of the seat cushion portion 1310, which can facilitate the user to get up.

Preferably, a line P1 can pass through the front end 1311 and the rear end 1312 of the seat cushion 1310, and an acute angle θ is formed between the line P1 and a horizontal line P2, the acute angle θ is greater than or equal to minus 15 degrees and less than or equal to plus 40 degrees . In more detail, when the acute angle θ is below the horizontal line P2, it is a negative value, and when the acute angle θ is above the horizontal line P2, it is a positive value. Therefore, as shown in Figure 4, the acute angle θ can be, for example, minus 11 degrees at this time, and the rear end 1312 of the seat cushion 1310 can rise relative to the front end 1311 of the seat cushion 1310 (ie The rear end 1312 rotates counterclockwise relative to the front end 1311), so that the seat cushion 1310 becomes the position shown in Fig. 5. At this time, the acute angle θ may be, for example, positive 24 degrees.

The rising driver 1440 may include a motor 1441 and a driving rod 1442. The rotation of the motor 1441 can drive the driving rod 1442 to expand and contract, and the seat cushion 1310 can be moved up and down. Preferably, the rising driver 1440 can be pivotally connected between the frame 1430 and the front end 1311 of the seat cushion portion 1310, which is more helpful for structural configuration and does not affect the vibration effect of the seat unit 1300. Preferably, the drive rod 1442 One end is pivotally connected to the cushion portion 1310, and the other end is pivotally connected to the frame 1430. More preferably, the rhythmic motion and rising aid device 10 may further include a plurality of elastic pads 1700 located between the frame 1430 and the seat cushion 1310. Since the vibration unit 1900 is pushed against the base frame unit 1200 to generate vibration, the seat unit 1300 is indirectly pivoted to the base frame unit 1200 through the frame 1430 to be linked, so the frame 1430 and the seat unit 1300 will have an effect due to the vibration relationship. Therefore, through the action of the elastic gasket 1700, the force can be absorbed or reduced, the smoothness of vibration can be increased, and the reliability of the rhythmic motion and the use of the stand-up assist device 10 can be increased.

As shown in Figure 4, there may be a first distance D1 between the lower end 1412 of the first link 1410 and the lower end 1422 of the second link 1420. The upper end 1411 of the first link 1410 and the upper end of the second link 1420 There may be a second distance D2 between 1421, and the first distance D1 is greater than the second distance D2. There may be a first height H1 between the upper end 1411 of the first link 1410 and the seat cushion 1310, and there may be a second height H2 between the upper end 1421 of the second link 1420 and the seat cushion 1310, and the first height H1 Greater than the second height H2. Thereby, the smoothness and stability of the rear end 1312 of the seat cushion 1310 relative to the front end 1311 can be improved.

After the drive rod 1442 is extended, the seat cushion 1310 can be raised and rotated simultaneously by cooperating with the first link 1410 and the second link 1420, and as shown in Figure 6, the front end 1311 of the seat cushion 1310 will be opposite to the base 1100 Moving backwards, the front end 1311 can avoid pushing against the user's knees after moving backwards, so it can help the user get up.

In the embodiment shown in FIGS. 1 to 6, the rhythmic motion and rising aid device 10 may further include two support rods 1600, the two support rods 1600 are respectively disposed on two sides of the frame 1430, and one end of each support rod 1600 is pivotally connected to The frame 1430 has the other end pivoted to the base 1100. More specifically, the support rod 1600 has a long rod structure, one end of which is pivotally connected to the frame 1430 adjacent to the rear end 1312 of the cushion portion 1310, and the other end is pivoted to a rear half of the base 1100, so that it can move in rhythm and When the rising assist device 10 vibrates, the stability of the rhythmic motion and the rising assist device 10 is increased.

In addition, the rhythmic motion and rising aid device 10 may further include a seat driving unit 1800, and the seat unit 1300 further includes a seat back 1320 and a foot cushion 1330. The seat back 1320 is pivoted on the seat cushion 1310, and the seat There is a first included angle between the back 1320 and the seat cushion 1310, the foot cushion 1330 is pivoted to the seat cushion 1310, and there is a second included angle between the foot cushion 1330 and the seat cushion 1310, wherein the seat driving unit 1800 The seat unit 1300 is driven to change the first angle or the second angle. In the embodiment of FIGS. 1 to 6, the seat driving unit 1800 may include a linear actuator 1810 and a connecting rod group 1820. One end of the connecting rod group 1820 is connected to the seat back 1320 and the other end is connected to the foot pad. 1330, the connecting rod group 1820 is driven to act through the linear actuator 1810, and the first included angle and the second included angle can be changed at the same time. In other embodiments, It is also possible to change only the angle of the first included angle, or only the angle of the second included angle, and it is not limited to this.

Please refer to Figures 7 and 8, where Figure 7 shows a partial exploded perspective view of a rhythmic motion and stand-up assist device 20 according to another embodiment of the present invention, and Figure 8 shows the rhythmic motion of Figure 7 and A schematic side view of the stand-up assist device 20. The structure of the rhythmic motion and rising aid device 20 and the structure of the rhythmic motion and rising aid device 10 in Figs. 1 to 6 are similar, except that the structure of the base frame unit 2200 is slightly different. The differences will be described later. The same or similar structure will not be repeated.

The base frame unit 2200 may include a frame body 2210, two long slots 2240, two moving parts 2250 and a horizontal driver 2260. The frame body 2210 is pivotally connected to the base (not labeled), and the two long slots 2240 are spaced apart on the frame body 2210. The moving parts 2250 correspond to the two long grooves 2240 one-to-one. Each moving part 2250 is limited to move in each long groove 2240, and the two moving parts 2250 are respectively pivotally connected to two sides of the frame 2430. The horizontal drive 2260 is arranged on the frame 2210. , The horizontal driver 2260 drives the moving parts 2250 to make the frame 2430 link the seat unit 2300 to move in a moving direction, and the moving direction is parallel to the long side of each long groove 2240.

More specifically, the two long grooves 2240 are respectively located on two sides of the frame 2210, and the long sides of the long groove 2240 are parallel to the sides of the frame 2210. The horizontal drive 2260 includes a motor 2261, a screw 2262, and a linkage portion 2263. One end of the screw 2262 is connected to the motor 2261 and driven by the motor 2261 to rotate forward and backward. The linkage portion 2263 is connected to the other end of the screw 2262, and the linkage portion 2263 has two ends. The moving parts 2250 are respectively connected, so the motor 2261 can be operated in conjunction The screw 2262 rotates, so that the linkage portion 2263 drives the moving part 2250 to move along the moving direction.

Because the frame 2430 is pivotally connected to the moving part 2250, the frame 2430 and the seat unit 2300 can also be displaced in the moving direction, and the vibration arm (distance from the pivot point to the center of mass of the seat unit 2300) can be changed to adjust the seat unit 2300 vibration intensity.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to those defined in the attached patent scope.

10‧‧‧Rhythmic exercise and stand-up aids

1100‧‧‧Base

1200‧‧‧Base frame unit

1210‧‧‧Frame

1220‧‧‧Connecting piece

1300‧‧‧Seat Unit

1310‧‧‧Chair Cushion

1320‧‧‧Chair Back

1330‧‧‧Foot Pad

1410‧‧‧First Link

1411‧‧‧Upper

1412‧‧‧Bottom

1420‧‧‧Second Link

1421‧‧‧Upper

1422‧‧‧Bottom

1430‧‧‧Frame

1440‧‧‧Get up and drive

1441‧‧‧Motor

1442‧‧‧Drive lever

1600‧‧‧Support Rod

1700‧‧‧Elastic gasket

1800‧‧‧Seat drive unit

1900‧‧‧Vibration unit

Claims (10)

A rhythmic motion and stand-up assisting device, comprising: a base; a base frame unit pivoted on the base; a seat unit disposed on the base frame unit and including a cushion part; a vibration unit disposed on the base , The vibration unit pushes the base frame unit to link the seat unit to vibrate; and a body auxiliary unit is connected to the seat unit, and the rising auxiliary unit is actuated to make a rear end of the seat cushion relative to the rear end of the seat cushion One front end rises. For the rhythmic motion and rise aid device described in item 1 of the scope of patent application, the rise aid unit includes: a frame connected to the base frame unit; and two first linkages respectively pivoted to the seat unit On two sides, the lower end of each first link is pivotally connected to the frame and one upper end is pivotally connected to the seat cushion; two second links are pivotally connected to the two sides of the seat unit, and each of the first The lower end of the two connecting rods is pivotally connected to the frame and the upper end is pivotally connected to the seat cushion part; and a body driver connected to the seat cushion part to drive the seat cushion part up and down; wherein each of the first connecting rods is relatively Each of the second links is adjacent to the front end of the seat cushion, and each of the first links has a first length, each of the second links has a second length, and each of the first lengths is smaller than each of the second length. The rhythmic motion and rise aid device described in item 2 of the scope of patent application, wherein there is a first distance between the lower end of the first link and the lower end of the second link, and the distance of the first link is There is a second distance between the upper end and the upper end of the second connecting rod, and the first distance is greater than the second distance. The rhythmic motion and rise aid device described in item 2 of the scope of patent application, wherein a first height is between the upper end of the first link and the cushion portion, and the upper end of the second link is connected to the There is a second height between the cushion parts, and the first height is greater than the second height. The rhythmic motion and rising aid device described in item 2 of the scope of patent application, wherein the rising driver is pivotally connected between the frame and the front end of the cushion portion. The rhythmic motion and rise aid device described in item 2 of the scope of patent application, wherein the base frame unit includes: a frame body pivotally connected to the base; two long grooves arranged at intervals on the frame body; two moving parts, The two moving parts correspond to the two long grooves one-to-one, each moving part is restricted to move in each long groove, and the two moving parts are pivotally connected to two sides of the frame; and A horizontal driver is arranged on the frame body, and the horizontal driver drives the moving parts to make the frame move the seat unit in a moving direction parallel to the long side of each long groove. As described in the second item of the scope of the patent application, the rhythmic motion and rising aid device further includes: two support rods respectively arranged on two sides of the frame, one end of each support rod is pivotally connected to the frame and the other end is pivotally connected to the frame The base. The rhythmic motion and rise aid device described in item 2 of the scope of patent application further includes a plurality of elastic pads located between the frame and the cushion portion. The rhythmic motion and rise aid device described in the first item of the scope of patent application further includes a seat driving unit, and the seat unit further includes: a seat back, pivoted on the seat cushion, and the seat back and There is a first included angle between the chair cushion part; and a foot cushion part pivoted on the chair cushion part, and there is a second included angle between the foot cushion part and the chair cushion part; wherein the seat driving unit drives The seat unit changes the first angle or the second angle. The rhythmic motion and rising aid device described in the first item of the scope of patent application, wherein a connection line passes through the front end and the back end of the cushion portion, and an acute angle is formed between the connection line and a horizontal line, and the acute angle is greater than Equal to minus 15 degrees and less than or equal to plus 40 degrees.

Images