Chair with a swinging function

Abstract

To provide a chair with a swing function.SOLUTION: A chair with a swing function includes a base frame, a swing structure, and a swing drive assembly member. The swing structure is installed in the base frame, and includes a swing base frame and at least two swing arms. The bottom end of the swing arm is connected to the swing base frame, and the upper end is connected to the base frame. The swing drive assembly member connects the base frame and the swing base frame, and drives the swing base frame so as to swing it. The swing drive assembly member includes a motor, a drive assembly member, an eccentric mechanism, a universal structure, and a connection stand. The motor is combined with the drive assembly member, and drives the drive assembly member so as to rotate it. One end of the eccentric mechanism is connected to the drive assembly member, and the other end of the eccentric mechanism includes a protruding structure.SELECTED DRAWING: Figure 1C

Description

Technical Field

[0001] The present invention relates to the field of chair technology, and more particularly to a chair with a swing function.

Background Art

[0002] Currently, the swing chairs on the market are equipped with a frame and a seat frame, and are driven by a drive mechanism to swing the frame back and forth, making tired users relax comfortably.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, since the swing length of the swing mechanism of the current swing chair is constant, the swing frequency is a substantially fixed value, and the swing frequency cannot be adjusted. Therefore, the swing chair cannot be synchronized with the breathing frequency of the user, and a better relaxation effect cannot be achieved.

[0005] Furthermore, although there is currently technology for electrically driving a swing chair, in conventional patent documents, for example, Patent Document 1 below discloses that "the base and the swing base frame are connected by a gear and a connecting rod, and the swing base frame is driven to swing by the gear and the connecting rod. However, since the gear directly drives the connecting rod, when the product is impacted, the gear is easily damaged and the product life is shortened." In view of this, how to design a chair with a swing function that enhances reliability and synchronizes with the user's breathing frequency has been a problem waiting to be solved.

[0006] The present invention has been made in view of the above circumstances, and solving the above problems is taken as an example of the object. That is, the object is to provide a chair having a swing function.

Means for Solving the Problem

[0007] In order to solve the above problems, the present invention employs the following means.

[0008] A chair having a swing function according to an aspect of the present invention includes a base frame, a swing structure, and a swing drive assembly member. The swing structure is installed to swing on the base frame. The swing structure includes a swing base frame and at least two swing arms. The swing arms have an upper end and a bottom end. The bottom end is connected to the swing base frame, and the upper end is connected to the base frame. The swing drive assembly member connects the base frame and the swing base frame and drives the swing base frame to swing. The swing drive assembly member includes a motor, a drive assembly member, an eccentric mechanism, a universal structure, and a connection base. The motor is combined with the drive assembly member to drive the drive assembly member to rotate. One end of the eccentric mechanism is connected to the drive assembly member, and the other end of the eccentric mechanism has a protrusion structure. One end of the universal structure is connected to the protrusion structure of the eccentric mechanism, and the other end of the universal structure has a spherical connecting rod. The connection base is installed on the base frame, and the connection base has a groove for combining with the spherical connecting rod.

[0009] According to the above aspect of the present invention, preferably, the swing structure further includes a bracket installed on and connected to the swing base frame.

[0010] According to the above aspect of the present invention, preferably, the drive assembly member of the swing drive assembly member includes a first gear, a first shaft, a movable wheel, a second shaft, and a belt. The motor drives the first gear to rotate around the first shaft. The belt is connected to transmit the first shaft and the movable wheel so that the movable wheel rotates around the second shaft. One end of the eccentric mechanism is covered on the second shaft.

[0011] According to one aspect of the present invention described above, preferably, the universal structure of the swing drive assembly member includes a first connector, a guide rod, and a second connector. The first connector is connected to the protruding structure of the eccentric mechanism. The guide rod passes through the guide hole of the first connector and is used to pivotally attach the first connector to the second connector. The spherical connecting rod has a spherical end and a rod-shaped end, and the second connector is connected to the rod-shaped end of the spherical connecting rod.

[0012] According to one aspect of the present invention described above, preferably, the swing frequency of the swing structure gradually decreases.

[0013] According to one aspect of the present invention described above, preferably, the swing frequency per minute of the swing structure is 15 times or less.

[0014] According to one aspect of the present invention described above, preferably, the swing frequency per minute of the swing structure ranges between 8 and 15 times.

[0015] Further, another object of the present invention is to provide a chair having a swing function. The chair having a swing function according to another aspect of the present invention includes a base frame, a swing structure, and a swing drive assembly member. The swing structure is installed to swing on the base frame. The swing structure includes a swing base frame and at least two swing arms. The swing arms have an upper end and a bottom end. The bottom end is connected to the swing base frame, and the upper end is connected to the base frame. The swing drive assembly member connects the base frame and the swing base frame and drives the swing base frame to swing. The swing frequency per minute of the swing structure is 15 times or less.

[0016] According to one aspect of the present invention described above, preferably, the swing frequency of the swing structure gradually decreases and is not less than 8 times.

[0017] According to the above aspect of the present invention, preferably, the swing drive assembly member includes a motor, a drive assembly member, an eccentric mechanism, a universal structure, and a connection base. The motor is combined with the drive assembly member to drive the drive assembly member to rotate. One end of the eccentric mechanism is connected to the drive assembly member, and the other end of the eccentric mechanism has a protruding structure. One end of the universal structure is connected to the protruding structure of the eccentric mechanism, and the other end of the universal structure has a spherical connecting rod. The connection base is installed on the base frame, and the connection base has a concave groove for combining with the spherical connecting rod. The voltage of the motor can be adjusted to control the swing frequency of the swing structure.

Effects of the Invention

[0018] Thus, according to the present invention, the following effects are achieved. The present invention installs the swing drive assembly member between the base frame and the swing base frame, and utilizes the drive assembly member and the universal structure of the swing drive assembly member to adjust the errors during the assembly of the swing base frame and the base frame in multiple directions, thereby lowering the hurdle for the assembly accuracy of the product. Also, when the product is subjected to impact, the drive assembly member and the universal structure provide buffering in multiple directions, enhancing the reliability of the product.

[0019] Moreover, since the swing length of the swing structure cannot be adjusted and there are also limitations on the length of the drive shaft, the chair according to the prior art has a swing frequency in the range of 16 to 42 times per minute and cannot be less than 16 times per minute. The swing structure according to the present invention has a swing frequency of 15 times per minute or less, and by adjusting the voltage of the motor to gradually lower the swing frequency, the swing frequency is synchronized with the breathing frequency of the user, improving the user experience.

[0020] Other objects, configurations, and effects of the present invention will become apparent from the following sections on the embodiments of the invention.

Brief Description of the Drawings

[0021] From the descriptions in the following specification and drawings, at least the following matters will become clear.

Figure 1A

Figure 1B

Figure 1C

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0022] In order to make the object, technical method, and advantages of the embodiments of the present invention clearer, hereinafter, with reference to the drawings of the embodiments of the present invention, the technical method of the embodiments of the present invention will be clearly and completely described. It is clarified that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts also belong to the protection scope of the present invention. Therefore, the detailed description of the embodiments of the present invention provided in the drawings below does not limit the scope of the present invention claimed, but only shows the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts also belong to the protection scope of the present invention.

[0023] In this specification, terms such as "first" and "second" are only used for the purpose of explanation, and do not indicate or imply importance, nor do they indicate the quantity of technical features to be indicated. Therefore, the features limited by "first" and "second" explicitly or implicitly include one or more of the said features. In the description of the present invention, the definition of "a plurality" includes two or more unless clearly and specifically limited.

[0024] FIG. 1A is a side view showing a state in which a chair having a swing function according to an embodiment of the present invention is rocked forward. FIG. 1B is a side view showing a state in which a chair having a swing function according to an embodiment of the present invention is rocked backward. FIG. 1C is a schematic configuration diagram showing a chair having a swing function according to an embodiment of the present invention. FIG. 2 is an exploded view showing a chair having a swing function according to an embodiment of the present invention. FIG. 3 is a schematic configuration diagram showing a swing drive assembly member according to an embodiment of the present invention. FIG. 4 is an exploded view showing a swing drive assembly member according to an embodiment of the present invention. FIG. 5 is an exploded view showing a swing drive assembly member according to an embodiment of the present invention.

[0025] Refer to FIGS. 1A to 3 together. The chair 1 having a swing function according to the present invention includes a base frame 10, a swing structure 20, and a swing drive assembly member 40. The swing structure 20 is installed to swing on the base frame 10, and the swing structure 20 includes a swing base frame 21 and at least two swing arms 22. The swing arm 22 has an upper end 221 and a bottom end 222. The bottom end 222 is connected to the swing base frame 21, and the upper end 221 is connected to the base frame 10. In an embodiment of the present invention, there are a total of four swing arms 22, that is, two swing arms 22 are respectively installed on both sides of the swing base frame 21. However, the present invention does not limit the number and swing position of the swing arms 22, and any structure that can drive the swing base frame 21 to swing back and forth is acceptable (refer to FIGS. 1A and 1B). When the swing base frame 21 swings forward or backward, the swing arms 22 tilt at different angles. The swing drive assembly member 40 connects the base frame 10 and the swing base frame 21 and drives the swing base frame 21 to swing.

[0026] Furthermore, bearings are installed at both the upper end 221 and the bottom end 222 of the swing arm 22. The bottom end 222 is rotatably connected to the swing base frame 21 by bolts, and the upper end 221 is rotatably connected to the base frame 10 by bolts. The swing function of the chair is realized by the swing of the swing arm 22 under the action of the swing drive assembly member 40.

[0027] As shown in FIG. 2, further, the swing structure 20 further includes a bracket 30, two sets of support frames 50, and a push rod 60. The two sets of support frames 50 are respectively connected to both ends of the swing base frame 21 and are used to support the bracket 30. The push rod 60 is connected to one of the sets of support frames 50 and the swing base frame 21. In a specific implementation, a fabric is installed on the bracket 30 to form an L-shaped seating portion, which is used for a user to sit on. The support frame 50 preferably has an H-shaped structure, and its structure is stable. More preferably, it supports the bracket 30. In this embodiment, the support frames 50 are respectively located at the front end and the rear end of the swing base frame 21, but the present invention is not limited thereto. The push rod 60 is located between the two sets of support frames 50, enhancing the stability of the chair 1 having a swinging function.

[0028] As shown in FIGS. 3 to 5, the swing drive assembly member 40 includes a motor 41, a drive assembly member 42, an eccentric mechanism 43, a universal structure 44, and a connection base 445. The motor 41 is combined with the drive assembly member 42 for driving the drive assembly member 42 to rotate. One end of the eccentric mechanism 43 is connected to the drive assembly member 42, and the other end of the eccentric mechanism 43 has a protrusion structure 431. One end of the universal structure 44 is connected to the protrusion structure 431 of the eccentric mechanism 43, and the other end of the universal structure 44 has a spherical connecting rod 444. The connection base 445 is fixedly provided on the base frame 10, and the connection base 445 has a concave groove for combining with the spherical connecting rod 444. The operating mode of the swing drive assembly member 40 is that the motor 41 provides an acting force parallel to the gravity direction of the bracket 30 to drive the drive assembly member 42 to rotate. Since one end of the eccentric mechanism 43 has a fitting hole 432 covered so as to be connected to the drive assembly member 42, the protrusion structure 431 located at the other end of the eccentric mechanism 43 rotates eccentrically. One end of the universal structure 44 is covered by the protrusion structure 431 of the eccentric mechanism 43, and the other end has a spherical connecting rod 444 connected to the connection base 445. By connecting the connection base 445 to be fixed to the base frame 10, the force transmission direction is fixed, the drive assembly member 42 moves relative to the eccentric mechanism 43, and the swing base frame 21 is driven to swing back and forth. By using the connection base 445 as the swing fulcrum, the chair 1 according to this embodiment swings in the full width. Preferably, the swing width reaches 6 cm, but the present invention is not limited thereto. In the embodiment of the present invention, the concave groove (not shown) of the connection base 445 is conformally combined with the spherical connecting rod 444 of the universal structure 44, that is, the surface of the concave groove is also spherical, which adjusts the assembly error between the swing base frame 21 and the base frame 10, enhances the buffering ability against stresses in all directions, reduces the wear of the drive assembly member 42, and improves the reliability of the product. Preferably, the surface of the concave groove is a spherical surface similar to but slightly larger than the spherical connecting rod 444.Furthermore, the swing base frame 21 is driven by the drive assembly member 42, and the situation where the swing base frame 21 temporarily stops when swinging to the front and rear highest points is reduced, the swing stroke of the swing base frame 21 is made smoother, and the user satisfaction is enhanced.

[0029] As shown in FIGS. 4 and 5, furthermore, the drive assembly member 42 according to the embodiment of the present invention includes a first gear 421, a first shaft 422, a movable wheel 423, a second shaft 424, and a belt 425. The motor 41 further includes a motor shaft 411. The motor shaft 411 has, for example, a tooth portion that meshes with the first gear 421, and drives the first gear 421 to rotate around the first shaft 422. The belt 425 is connected to transmit the first shaft 422 and the movable wheel 423, and enables the movable wheel 423 to rotate around the second shaft 424. By covering the fitting hole 432 of the eccentric mechanism 43 on the second shaft 424, the protruding structure 431 located at the other end of the eccentric mechanism 43 rotates around the center of the second shaft 424, and the distance between the protruding structure 431 and the fitting hole 432 becomes the rotation radius. The gear according to the embodiment of the present invention is, for example, a reduction gear for deceleration, but the present invention is not limited thereto. When the product is subjected to an impact, since the belt 425 according to this embodiment has a function of buffering the stress between the first gear 421 and the movable wheel 423, the impact force applied by the stress to the first gear 421 and the movable wheel 423 is reduced, the situation where the member is destroyed is prevented, and the reliability of the product is enhanced.

[0030] Furthermore, the universal structure 44 according to an embodiment of the present invention includes a first connector 441, a guide rod 442, and a second connector 443. The first connector 441 includes a first portion 4412 and a second portion 4413 that are connected to each other. The first portion 4412 is, for example, an annular structure that is covered so as to be connected to the protruding structure 431 of the eccentric mechanism 43. The second portion 4413 is provided with a guide hole 4411. The central axis of the guide hole 4411 is orthogonal to the central axis of the first portion 4412. The guide rod 442 passes through the guide hole 4411 of the first connector 441 so as to be pivotally attached to the second connector 443. The spherical connecting rod 444 has a spherical end 4441 and a rod-shaped end 4442. The second connector 443 is connected to the rod-shaped end 4442 of the spherical connecting rod 444.

[0031] Furthermore, the swing drive assembly member 40 according to an embodiment of the present invention further includes a drive assembly member bracket 46 and a drive assembly member protective cover 47. The drive assembly member bracket 46 is fixed to the swing base frame 21, and since the drive assembly member 42 is fixed to the drive assembly member bracket 46, the distance between the first shaft 422 and the second shaft 424 is fixed. The drive assembly member protective cover 47 is installed on the drive assembly member bracket 46 to protect the drive assembly member 42 so that it will not be damaged by foreign objects falling and rendered inoperable.

[0032] Since the swing length of the swing structure cannot be adjusted, the chair according to the prior art has a substantially fixed swing frequency that cannot be adjusted, and since the length of the drive shaft is limited, the swing frequency can only be controlled within the range of 16 to 42 times per minute, and cannot be reduced to 16 times per minute or less. When the user sits on it, the swing frequency is too fast and causes dizziness. The chair 1 having a swing function according to an embodiment of the present invention includes a base frame 10, a swing structure 20, and a swing drive assembly member 40. The swing structure 20 is installed on the base frame 10 so as to swing. The swing structure 20 includes a swing base frame 21 and at least two swing arms 22. Each of the swing arms 22 has an upper end 221 and a bottom end 222. The bottom end 222 is connected to the swing base frame 21, the upper end 221 is connected to the base frame 10, and the swing drive assembly member 40 connects the base frame 10 and the swing base frame 21 and drives the swing base frame 21 to swing. The swing frequency per minute of the swing structure 20 is 15 times or less. If the swing frequency per minute of the swing structure 20 is 15 times or less, it can be synchronized with the breathing frequency of the human body, and a relaxation effect can be achieved when the user sits on it. Preferably, the swing frequency per minute of the swing structure 20 is in the range of 8 to 15 times.

[0033] In a specific implementation, the swing drive assembly member 40 includes a motor 41, a drive assembly member 42, an eccentric mechanism 43, a universal structure 44, and a connection base 445. The motor 41 is combined with the drive assembly member 42 to drive the drive assembly member 42 to rotate. One end of the eccentric mechanism 43 is connected to the drive assembly member 42, and the other end of the eccentric mechanism 43 has a protrusion structure 431. One end of the universal structure 44 is connected to the protrusion structure 431 of the eccentric mechanism 43, and the other end of the universal structure 44 has a spherical connecting rod 444. The connection base 445 is fixedly installed on the base frame 10, and the connection base 445 has a concave groove for combining with the spherical connecting rod 444. By doing so, by gradually adjusting the voltage of the motor 41 of the swing drive assembly member 40, the swing frequency of the swing structure 20 is controlled. Preferably, the swing frequency of the swing structure 20 is gradually decreased. For example, a first voltage is supplied in the time period of 0 to 5 minutes, and the swing frequency per minute of the swing structure 20 is set to 15 times. A second voltage is supplied in the time period of 6 to 10 minutes, and the swing frequency per minute of the swing structure 20 is set to 12 times. A third voltage is supplied in the time period of 11 to 15 minutes, and the swing frequency per minute of the swing structure 20 is set to 10 times. After 15 minutes, a fourth voltage is supplied, and the swing frequency per minute of the swing structure 20 is set to 8 times. The first voltage is greater than the second voltage, the second voltage is greater than the third voltage, the third voltage is greater than the fourth voltage, and the first voltage is, for example, 24W.

[0034] The frequency of deep breathing of the human body is about 8 times per minute. Preferably, the swing frequency per minute of the swing structure 20 is not less than 8 times.

[0035] The embodiments of the present invention are applicable to the field of massage chairs, and combine various massage mechanisms such as mechanical, pneumatic, vibration, and shoulder tapping types installed in parts such as the back, cushion, hands, legs, and feet to perform massage on the human body, and further achieve the purpose of performing a healthy massage during the process of swinging and relaxing.

[0036] The above-described embodiments are for facilitating the understanding of the present invention and are not for limiting the interpretation of the present invention. It goes without saying that the present invention can be changed and improved without departing from its gist, and equivalents thereof are included in the present invention.

Explanation of Reference Numerals

[0037] 1 Chair with a swinging function 10 Base frame 20 Swinging structure 21 Swinging base frame 22 Swinging arm 221 Upper end 222 Bottom end 30 Bracket 40 Swinging drive assembly member 41 Motor 411 Motor shaft 42 Drive assembly member 421 First gear 422 First shaft 423 Movable wheel 424 Second shaft 425 Belt 46 Drive assembly member bracket 47 Drive assembly member protection cover 43 Eccentric mechanism 431 Protrusion structure 432 Fitting hole 44 Universal structure 441 First connector 4411 Guide hole 4412 First part 4413 Second part 442 Guide rod 443 Second connector 444 Spherical connecting rod 4441 Spherical end 4442 Rod-shaped end 445 Connection base 50 Support frame 60 Push rod

Claims

1. A base frame, A swing structure swingably installed on the base frame, A swing base frame, At least two swing arms each including an upper end and a bottom end, the bottom end being connected to the swing base frame and the upper end being connected to the base frame, further including a swing structure; A swing drive assembly member connecting the base frame and the swing base frame and driving the swing base frame to swing; The swing drive assembly member includes: A motor, A transmission member driven by the motor via a transmission mechanism to perform a rotational motion; An eccentric mechanism having one end connected to the transmission member and the other end having a protrusion structure; A universal structure having one end connected to the protrusion structure of the eccentric mechanism and the other end having a spherical connecting rod; A connecting base installed on the base frame and having a concave groove for combining with the spherical connecting rod, characterized in that the chair has a swing function.

2. The swing structure further includes a bracket installed on and connected to the swing base frame, the chair having a swing function according to claim 1.

3. The transmission member of the swing drive assembly member includes a first gear, a first shaft, a movable wheel, a second shaft, and a belt. The motor drives the first gear to rotate around the first shaft, the belt is connected to transmit the first shaft and the movable wheel, the movable wheel rotates around the second shaft, and one end of the eccentric mechanism is covered on the second shaft, the chair having a swing function according to claim 1.

4. The universal structure includes a first connector, a guide rod, and a second connector. The first connector is connected to the protrusion structure of the eccentric mechanism, the guide rod penetrates through a guide hole of the first connector, the first connector is pivotally attached to the second connector, the spherical connecting rod has a spherical end and a rod-shaped end, and the second connector is connected to the rod-shaped end of the spherical connecting rod, the chair having a swing function according to claim 1.

5. The chair having a swinging function according to claim 1, wherein the swinging frequency of the swinging structure gradually decreases.

6. The chair having a swinging function according to claim 1, wherein the swinging frequency per minute of the swinging structure is 15 times or less.

7. The chair having a swinging function according to claim 6, wherein the swinging frequency per minute of the swinging structure ranges between 8 and 15 times.

8. A base frame, A swinging structure swingably installed on the base frame, A swing base frame, At least two swing arms each including an upper end and a bottom end, the bottom end being connected to the swing base frame and the upper end being connected to the base frame, and further including a swinging structure, A swing drive assembly member that connects the base frame and the swing base frame, drives the swing base frame to swing, and drives the swing base frame to swing so that the swinging frequency per minute of the swinging structure is 15 times or less, The swing drive assembly member includes A motor, A transmission member driven by the motor via a transmission mechanism to perform a rotational motion, An eccentric mechanism having one end connected to the transmission member and the other end having a protrusion structure, A universal structure having one end connected to the protrusion structure of the eccentric mechanism and the other end having a spherical connecting rod, A connection base installed on the base frame and having a concave groove for combining with the spherical connecting rod, The chair having a swinging function, wherein the voltage of the motor is adjustable to control the swinging frequency of the swinging structure.

9. The chair having a swinging function according to claim 8, wherein the swinging frequency per minute of the swinging structure ranges between 8 and 15 times.

10. The chair having a swinging function according to claim 8, wherein the swinging frequency of the swinging structure gradually decreases and is not less than 8 times.

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