TWI724880B - High load-bearing stand-up assisting cushion - Google Patents

Abstract

A high load-bearing stand-up assisting cushion is disclosed. The cushion is provided with a top plate pivoted to a base, a lifting mechanism on the base to lift the top plate, and a control unit to control a power supply. The lifting mechanism comprises an inner threaded sleeve, a screw rod, a driving device, a first support rack and a second support rack. The driving device of the lifting mechanism is designed to rotate the screw rod such that the inner threaded sleeve is shifted to pivot the first support rack and the second support rack to raise a moving end of the top plate. This high load-bearing stand-up assisting cushion of the present invention can be used to assist the user to stand up.

Description

High load-bearing stand up auxiliary cushion

The present invention relates to an auxiliary seat cushion, in particular to a high-load-bearing auxiliary seat cushion with a labor-saving effect.

The aging phenomenon that accompanies aging has an unavoidable impact on the physiology, especially the degeneration of body joints, which not only causes varying degrees of pain, but also causes a lot of inconvenience to daily life. In the knee joints of the feet, when the knee joints have been used extensively in daily life, the knee joints are affected by aging, which accelerates the degeneration of the knee joints, making the elderly or those with poor joint activities a general daily life. Greatly affected. However, currently commercially available auxiliary standing seats are more complicated in mechanism and therefore more expensive.

In addition, although some people currently try to solve these problems, for example, Taiwan Patent No. M573990 discloses an auxiliary rising device and a seat including the auxiliary rising device, and Taiwan Patent No. M542458 discloses a rising auxiliary seat cushion. However, the above-mentioned technologies are relatively bulky and cannot provide a labor-saving mechanism, and cannot bear a higher body weight.

In view of this, one object of the present invention is to provide a high-load-bearing stand-up auxiliary cushion to solve the above-mentioned problems of the prior art.

In order to achieve the foregoing objective, the present invention proposes a high-load-bearing stand-up auxiliary cushion including a base, a top plate, a lifting mechanism, a power supply and a control unit. The top plate has a pivot end and a movable end, and the pivot end is pivotally connected to the base. The lifting mechanism is arranged on the base for lifting the movable end of the top plate. The lifting mechanism includes an internally threaded sleeve, a screw, a driving device, a first support rod and a second support rod. The screw is screwed to the internal threaded sleeve. The driving device is fixed on the base, and the internally threaded sleeve is moved laterally on the base by rotating the driving screw. Both ends of the first support rod are respectively pivotally connected to the movable end of the internally threaded sleeve and the top plate, wherein the first support rod changes a first angle relative to the base with the lateral movement of the internally threaded sleeve, thereby lifting the The movable end of the top plate. Both ends of the second support rod are respectively pivotally connected to the first support rod and the base, wherein the second support rod changes a second angle relative to the base along with the first angle of the first support rod , Thereby supporting the top plate via the first support rod. The power supply is electrically connected to the driving device through an electrical circuit. The control unit is electrically connected to the electrical circuit, and by controlling the power supply to supply power to the driving device, the driving device performs a clockwise rotation mode, a counterclockwise rotation mode, or a stop rotation mode.

Wherein, when the screw is gradually screwed into the internally threaded sleeve so that the internally threaded sleeve moves laterally toward the direction of the screw, the first supporting rod system gradually pivots and increases the first angle relative to the base, thereby raising the top plate The mobile end.

Wherein, when the screw is gradually screwed out of the internally threaded sleeve so that the internally threaded sleeve moves laterally away from the screw, the first supporting rod system gradually pivots and reduces the first angle relative to the base, thereby lowering the top plate Active end.

Among them, the high load-bearing auxiliary seat cushion further includes a guide rail arranged on the base, and the internal threaded sleeve is moved laterally along the guide rail.

Wherein, one end of the second support rod is pivotally connected to the middle section area of the first support rod, and the other end of the second support rod is pivotally connected to the base.

Among them, the high-load-bearing stand-up auxiliary cushion further includes at least one first limit switch and at least one second limit switch. The first limit switch and the second limit switch are electrically connected to the control unit. When the first angle of the first support rod increases and When the first preset value is reached, the first limit opening relationship is triggered to transmit the first switching signal to the control unit, so that the control unit controls the driving device to switch from the clockwise rotation mode to the stop rotation mode. When the angle decreases and reaches the second preset value, the second limit opening relationship is triggered to transmit the second switching signal to the control unit, so that the control unit controls the driving device to switch from the counterclockwise rotation mode to the stop rotation mode.

Among them, the high load-bearing stand-up auxiliary cushion further includes a timing unit, which is electrically connected to the control unit. When the control unit controls the driving device to switch from the clockwise rotation mode to the stop rotation mode, the control unit synchronously triggers the timing unit to perform timing actions. Count the time.

Wherein, when the time counted by the timing action of the timing unit reaches the preset value, the control unit controls the driving device to switch from the stop rotation mode to the counterclockwise rotation mode.

Among them, the high load-bearing auxiliary seat cushion further includes a thrust bearing arranged on the screw to prevent the screw from moving.

Among them, the high load-bearing auxiliary lift cushion further includes auxiliary elements arranged between the base and the top plate, so as to release or accumulate elastic potential energy when the lifting mechanism raises or lowers the movable end of the top plate.

In summary, the high load-bearing stand-up auxiliary cushion of this creation uses the driving device to rotate the screw to move the internally threaded sleeve to move the position, so that the first support rod and the second support rod are pivoted and topped. The movable end of the board assists the user to get up from the top board, reduces the burden on the user's knee joint, and helps the elderly to get up. Moreover, through the ingenuity in the design of the labor-saving auxiliary stand-up cushion of the present invention, this creation can not only reduce the overall size of the cushion, but also has the effect of labor-saving and high load-bearing.

In order to enable Junshen to have a further understanding and understanding of the technical features and technical effects of the present invention, preferred embodiments and detailed descriptions are provided below.

10: Pedestal

12: Rail

14: Slider

20: Top plate

21: shaft

22: Pivot end

24: Active end

30: Lifting mechanism

32: Internal thread sleeve

33: Screw interface

34: Screw

36: drive device

40: Power

41: Rail

42: The first support rod

43: Slider

44: second support rod

50: control unit

60: Timing unit

62: The first limit switch

64: second limit switch

80: auxiliary components

90: Thrust bearing

Figure 1 is a cross-sectional side view of the created high load-bearing auxiliary seat cushion, where the top plate has not been raised.

Figure 2 is a cross-sectional side view of the created high load-bearing auxiliary seat cushion, where the top plate has been raised.

In order to understand the technical features, content and advantages of this creation and its achievable effects, this creation is combined with the diagrams, and detailed descriptions are given in the form of embodiments as follows, and the diagrams used therein have only To illustrate and supplement the manual, it may not be the true proportions and precise configuration after the implementation of this creation. Therefore, the proportion and configuration relationship of the attached drawings should not be interpreted or limited to the scope of rights of the creation in actual implementation. In addition, in order to facilitate understanding, the same elements in the following embodiments are denoted by the same symbols.

Please refer to FIG. 1 to FIG. 2, this creation is a high load-bearing auxiliary seat cushion for lifting up, including a base 10, a top board 20, a lifting mechanism 30, a power supply 40 and a control unit 50. The top plate 20 has a pivotal end 22 and a movable end 24. The pivotal end 22 of the top plate 20 is pivotally connected to one end of the base 10 via a shaft 21. The top plate 20 can be pivoted In turn, the distance between the movable end 24 and the base 10 is changed, that is, the top plate 20 can lift the height of the movable end 24 by pivoting.

The lifting mechanism of the high-load-bearing auxiliary seat cushion can provide high-load-bearing effects without increasing the size, and has a labor-saving effect, so it can maintain or even reduce the size of the overall high-load-bearing auxiliary seat cushion. In detail, the lifting mechanism 30 of the present creation is arranged on the top surface of the base 10 or in the accommodating space of the top surface for lifting and lowering the movable end 24 of the top plate 20. The lifting mechanism 30 includes an internally threaded sleeve 32, a screw 34, a driving device 36, a first support rod 42 and a second support rod 44. In the lifting mechanism 30 of the present invention, the internally threaded sleeve 32 moves laterally from one side of the base 10 to the other side of the base 10, and the driving device 36 is fixedly arranged on the other side of the base 10.

The screw 34 is rotatably arranged between the internally threaded sleeve 32 and the driving device 36, and the driving device 36 drives the screw 34 to rotate, so that the internally threaded sleeve 32 is approached or moved away from the screw 34 through the screw screw 34. Move laterally. In detail, the internally threaded sleeve 32 has a cylindrical structure, one end of the cylindrical structure has a threaded interface 33, the inside of the cylindrical structure has a threaded groove communicating with the threaded interface 33, and the inner surface of the threaded groove has threads. Wherein, the outer surface of the screw 34 has threads, and the screw 34 is screwed into the threaded groove of the female threaded sleeve 32 through the threaded interface 33 of the female threaded sleeve 32, and the thread of the female threaded sleeve 32 corresponds to the thread of the screw 34. Therefore, one end of the screw 34 can be screwed into the internally threaded sleeve 32, and the screw 34 can drive the internally threaded sleeve 32 to move laterally without rotating.

This creation uses the threaded groove of the female threaded sleeve 32 to screw the screw 34, and the use of surface screwing instead of point screwing will enable the female threaded sleeve 32 to screw the screw 34 more firmly. Therefore, this creation is an aid for getting up. The seat cushion does not require a high-horsepower motor, and only a small-horsepower motor can carry a heavier user's weight, for example, it can be as high as 120 kg. The base 10 of the high-load-bearing lifting auxiliary cushion of the present invention can optionally be additionally provided with a guide rail 12, and the internally threaded sleeve 32 can optionally have a sliding block 14, for example. The slider 14 may be, for example, a roller. When the snail When the threaded sleeve 32 moves laterally, the slider 14 is synchronously moved laterally along the guide rail 12, which can increase the overall structural strength and increase the stability of the internally threaded sleeve 32 when it moves laterally, which can prevent the internally threaded sleeve 32 from moving laterally. Rotate or move the position up and down. Wherein, the number of the guide rail 12 and the sliding block 14 can be, for example, two respectively, and they are located on both sides of the female threaded sleeve 32.

The driving device 36 of the lifting mechanism 30 is, for example, a motor with a decelerating device. The deceleration device is used to reduce the high rotation speed of the motor to an appropriate low rotation speed, for example, about 30 rpm. The driving device 36 is fixed on the other side of the base 10, and the driving device 36 is, for example, linked to the other end of the screw 34. Therefore, when the driving device 36 drives the screw 34 to rotate, the internally threaded sleeve 32 can move laterally on the base 10. For example, when the screw 34 rotates clockwise, the screw 34 can be gradually screwed into the threaded groove of the internally threaded sleeve 32, so the internally threaded sleeve 32 can move laterally toward the screw 34, for example. Similarly, when the screw 34 rotates counterclockwise, the internally threaded sleeve 32 can move laterally in a direction away from the screw 34, for example. In addition, when the user’s weight is quite heavy, the driving device 36 that drives the screw 34 to rotate will also bear a considerable reaction force through the screw 34 during the process of raising the user’s buttocks. Therefore, this creation can also be optional A thrust bearing 90 is added to the screw 34 to prevent the screw 34 from moving. For example, the thrust bearing 90 is provided on the screw 34, for example, at the junction of the screw 34 and the reduction gear of the driving device 36, so as to prevent the screw 34 from moving toward the reduction device due to force and damaging the driving device 36 . However, the invention is not limited to this, as long as the screw 34 can be prevented from moving, the thrust bearing 90 of the invention can be arranged at any position on the screw 34. Moreover, the number of thrust bearings 90 is not particularly limited, and may be one or more.

The two ends of the first support rod 42 of the lifting mechanism 30 of the present invention are respectively pivotally connected to the internal threaded sleeve 32 and the movable end 24 of the top plate 20 via the rotating shaft 21, wherein the first support rod 42 is accompanied by the internal threaded sleeve The lateral movement of 32 changes the first angle relative to the base 10 to lift the movable end 24 of the top plate 20. The movable end 24 of the top plate 20 has, for example, a guide rail 41, and the first support rod 42 is, for example, along the guide rail 41 uses the slider 43 to movably abut the movable end 24 of the top plate 20. The slider 43 may be, for example, a pulley. The number of the guide rail 41 and the sliding block 43 can be, for example, two respectively, and they are located on both sides of the two first supporting rods 42. The sliding blocks 43 of the two groups can also be connected to each other by rods. When the screw 34 is gradually screwed into the internally threaded sleeve 32, so that the internally threaded sleeve 32 moves laterally toward the direction of the screw 34, the first support rod 42 gradually pivots and increases the first angle relative to the base 10 , Thereby raising the movable end 24 of the top plate 20. When the screw 34 is gradually screwed out of the internally threaded sleeve 32, so that the internally threaded sleeve 32 moves laterally away from the screw 34, the first support rod 42 gradually pivots and reduces the first angle relative to the base 10. Thereby, the movable end 24 of the top plate 20 is lowered. Both ends of the second support rod 44 of the lifting mechanism 30 of the present creation are pivotally connected to the first support rod 42 and the base 10, wherein the second support rod 44 changes relative to the base along with the first angle of the first support rod 42 The second angle of the seat 10 allows the top plate 20 to be supported via the first supporting rod 42. One end of the second support rod 44 is pivotally connected to the middle section of the first support rod 42 via the rotating shaft 21, and the other end of the second support rod 44 is pivotally connected to the base 10. Based on the same principle, when the screw 34 is gradually screwed into the internally threaded sleeve 32, so that the internally threaded sleeve 32 moves laterally toward the direction of the screw 34, the second support rod 44 gradually pivots and increases relative to the base 10. The second angle is to raise the movable end 24 of the top plate 20. When the screw 34 is gradually screwed out of the internally threaded sleeve 32, so that the internally threaded sleeve 32 moves laterally away from the screw 34, the second support rod 44 gradually pivots and reduces the second angle relative to the base 10. Thereby, the movable end 24 of the top plate 20 is lowered.

The first angle of the first support rod 42 relative to the base 10 and the second angle of the second support rod 44 relative to the base 10 have the same changing tendency, that is, both gradually increase or both gradually decrease. The angle value of the first angle may be, for example, substantially the same as the angle value of the second angle, but the present creation is not limited to this, and the angle value of the first angle may also be, for example, an angle value that is different from the angle value of the second angle. The number of the first support rods 42 can be two, and they are located on both sides of the internal threaded sleeve 32 respectively. The number of second support rods 44 can be, for example There are two, and they are pivotally connected to the two first support rods 42 respectively. Alternatively, the first support rod 42 may be, for example, an inverted U-shaped rod body, and its two sides are respectively located on both sides of the internal threaded sleeve 32. The number of the second support rods 44 can be, for example, two, and they are respectively pivotally connected to both sides of the first support rod 42 in an inverted U-shaped rod body.

The power source 40 of the high load-bearing stand-up auxiliary cushion of the present invention can be, for example, a DC power source or an AC power source, and can be, for example, a mobile power source such as a battery or a commercial power source. For example, the power source 40 may be, for example, a single-use battery, or may be, for example, a storage battery, where the storage battery may be, for example, charged via mains or a mobile power source, and the storage battery may also be, for example, charged via the side wall of the base 10 Connector (not shown) for charging. Wherein, the power supply 40 is electrically connected to the driving device 36 via an electrical circuit, and the aforementioned electrical circuit is electrically connected to the control unit 50. The control unit 50 is, for example, a control switch, and the driving device 36 is operated in a clockwise rotation mode, a counterclockwise rotation mode, or a stop rotation mode by controlling the power supply 40 to supply power to the driving device 36. For example, when the driving device 36 performs a clockwise rotation mode, the screw 34 rotates clockwise. When the driving device 36 is in the counterclockwise rotation mode, the screw 34 rotates counterclockwise. When the driving device 36 is in the stop rotation mode, the screw 34 is stopped.

In addition, the high-load-bearing stand-up auxiliary cushion of the present invention may also include, for example, at least one first limit switch 62 and at least one second limit switch 64. The first limit switch 62 and the second limit switch 64 are electrically connected to the control unit 50 respectively. When the first angle of the first support rod 42 gradually increases and reaches a first preset value, the first limit switch 62 can be triggered by, for example, the female threaded sleeve 32, thereby transmitting the first switching signal to the control unit 50, so that the control unit 50 controls the driving device 36 to switch from the clockwise rotation mode to the stop rotation mode. When the first angle of the first support rod 62 decreases and reaches a second preset value, the second limit switch 64 can be triggered by, for example, the female threaded sleeve 32 to transmit a second switching signal to the control unit 50, so that the control unit 50 The control driving device 36 switches from the counterclockwise rotation mode to the stop rotation mode.

The high-load-bearing stand-up auxiliary cushion of the present invention further includes a timing unit 60, which is electrically connected to the control unit 50. When the control unit 50 controls the driving device 36 to switch from the clockwise rotation mode to the stop rotation mode, the control unit 50 synchronously triggers the timing unit 60 to perform a timing action to count the time. When the time counted by the timing action of the timing unit 60 reaches the preset value, the control unit 50 controls the driving device 36 to switch from the stop rotation mode to the counterclockwise rotation mode.

Taking the stand-up assistance as an example, the user may first manually control the driving device 36 to perform a clockwise rotation mode through the control unit 50, for example. When the first angle of the first support rod 42 gradually increases, the third angle of the top plate 20 relative to the base 10 will also gradually increase, so that the user who sits on the high-load-bearing auxiliary seat cushion can get up at any time. When the first angle of the first support rod 42 reaches the first preset value, it means that the movable end 24 of the top plate 20 will reach the predetermined height. At this time, the first limit switch 62 can be triggered to cause the driving device 36 to rotate clockwise. The mode is switched to stop rotation mode. At this time, the timing unit 60 will start timing, and when the predetermined time is reached, the timing unit 60 will transmit a control signal to the control unit 50, thereby controlling the driving device 36 to switch from the stop rotation mode to the counterclockwise rotation mode. In other words, when the movable end 24 of the top plate 20 is increased to a predetermined height and after a predetermined time has elapsed, the movable end 24 of the top plate 20 will automatically lower in height until the second limit switch 64 is triggered so that the driving device 36 switches from the counterclockwise rotation mode to stop Rotation mode.

In addition, the high load-bearing auxiliary seat cushion can also optionally have an auxiliary element 80 arranged between the base 10 and the top plate 20, so as to release or accumulate the elastic position when the lifting mechanism 30 raises or lowers the movable end 24 of the top plate 20 can. In order to simplify the illustration and avoid confusion, the auxiliary element 80 is represented by a dashed line. The auxiliary element 80 may be, for example, a compression spring, a torsion spring or a spring leaf, but is not limited thereto. For example, the auxiliary element 80 may be, for example, a compression spring. When the compression spring is compressed, the elastic potential energy is stored in the compression spring, so that when the compression spring is not compressed, it is stored in the compression spring. The potential energy of the elastic force will be converted into kinetic energy, and the compression spring will return to the original state (that is, the uncompressed state) more quickly. In order to locate the compression spring, the present creation can optionally provide a positioning block on the base 10. Moreover, this kinetic energy will also drive the compression spring to push the movable end 24 of the top plate 20 to move upward, so that the lifting mechanism 30 can push up the movable end 24 of the top plate 20 in a labor-saving manner, thereby achieving the effect of labor saving and high load-bearing. In addition, by changing the height of the positioning block, the potential energy of the compression spring can also be adjusted. In the present invention, the number and installation positions of the auxiliary elements 80 are not limited. Preferably, two auxiliary elements 80 can be arranged on both sides of the driving device 36 and on the left and right sides of the top plate 20, between the top plate 20 and the base 10, and far away from the pivoting end 22 of the top plate 20, for example. (I.e. adjacent to the movable end 24).

To sum up, the high-load-bearing lifting auxiliary cushion of this creation uses the driving device to rotate the screw to move the internally threaded sleeve to move the position, so that the first support rod and the second support rod are pivoted to raise the movable end of the roof to assist The user gets up from the top plate, which reduces the burden on the user's knee joints and can help the elderly to get up. Moreover, through the ingenuity in the design of the labor-saving auxiliary stand-up cushion of the present invention, this creation can not only reduce the overall size of the cushion, but also has the effect of labor-saving and high load-bearing.

The above description is only illustrative, and not restrictive. Any equivalent modifications or alterations that do not depart from the spirit and scope of the present invention should be included in the scope of the appended patent application.

10: Pedestal

12: Rail

114: Slider

20: Top plate

22: Pivot end

32: Internal thread sleeve

34: Screw

36: drive device

41: Rail

42: The first support rod

43: Slider

44: second support rod

50: control unit

60: Timing unit

64: second limit switch

80: auxiliary components

90: Thrust bearing

Claims (10)

A high-load-bearing stand-up auxiliary cushion, comprising: a base; a top plate, the top plate has a pivot end and a movable end, the pivot end is pivotally connected to the base; and a lifting mechanism is arranged on the base , Used to lift the movable end of the top plate, wherein the lifting mechanism includes; an internally threaded sleeve; a screw threaded to the internally threaded sleeve; a driving device fixed on the base by The screw is driven to rotate, so that the internally threaded sleeve performs a lateral movement on the base; a first support rod, both ends of the first support rod are pivotally connected to the internally threaded sleeve and movably abuts the top plate The movable end, wherein the first support rod changes a first angle relative to the base along with the lateral movement of the female threaded sleeve, thereby raising and lowering the movable end of the top plate, wherein the movable end of the top plate The end is lifted and lowered as the depth of the screw threaded into the internally threaded sleeve increases or decreases; and a second support rod. Both ends of the second support rod are pivotally connected to the first support rod and the base, wherein the The second support rod changes a second angle relative to the base with the first angle of the first support rod, so as to support the top plate through the first support rod; a power source, the power source through an electrical The circuit is electrically connected to the driving device; and A control unit is electrically connected to the electrical circuit, and by controlling the power supply to supply power to the driving device, the driving device performs a clockwise rotation mode, a counterclockwise rotation mode or a stop rotation mode. As mentioned in the first item of the scope of patent application, when the screw is gradually screwed into the internally threaded sleeve so that the internally threaded sleeve performs the lateral movement in the direction approaching the screw, the first The support rod is gradually pivoted and increases the first angle relative to the base, so as to raise the movable end of the top plate. As described in the second item of the scope of patent application, when the screw is gradually screwed out of the internally threaded sleeve so that the internally threaded sleeve performs the lateral movement in a direction away from the screw, the first The supporting rod system gradually pivots and reduces the first angle relative to the base, thereby lowering the movable end of the top plate. As described in the first item of the scope of patent application, the high load-bearing stand-up auxiliary cushion further includes a guide rail provided on the base, and the internally threaded sleeve moves laterally along the guide rail. The high-load-bearing stand-up auxiliary cushion described in item 1 of the scope of patent application, wherein one end of the second support rod is pivotally connected to the middle section area of the first support rod, and the other end of the second support rod is pivotally connected to the On the pedestal. For example, the high load-bearing stand-up auxiliary cushion described in item 1 of the scope of patent application further includes at least one first limit switch and at least one second limit switch. The first limit switch and the second limit switch are electrically connected to the control unit. When the first angle of the first support rod increases and reaches a first preset value, the first limit opening relationship is triggered to transmit a first switching signal to the control unit, so that the control unit controls the drive The device switches from the clockwise rotation mode to the stop rotation mode, and when the first angle of the first support rod decreases and reaches a second preset value, the second limit opening relationship is triggered A second switching signal is transmitted to the control unit, so that the control unit controls the driving device to switch from the counterclockwise rotation mode to the stop rotation mode. As described in item 6 of the scope of patent application, the high load-bearing stand-up auxiliary cushion further includes a timing unit electrically connected to the control unit, wherein when the control unit controls the driving device to switch from the clockwise rotation mode to the When the rotation mode is stopped, the control unit synchronously triggers the timing unit to perform a timing action to count a time. Such as the high-load-bearing stand-up auxiliary cushion described in item 7 of the scope of patent application, wherein when the time counted by the timing action of the timing unit reaches a preset value, the control unit controls the driving device to switch from the stop rotation mode To complete the counterclockwise rotation mode. For example, the high load-bearing auxiliary lift-up cushion described in item 1 of the scope of patent application further includes a thrust bearing provided on the screw to prevent the screw from moving. For example, the high-load-bearing lifting auxiliary cushion described in item 1 of the scope of the patent application further includes an auxiliary element arranged between the base and the top plate, so as to be released or released when the lifting mechanism raises or lowers the movable end of the top plate. Accumulate elastic potential energy.

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