KR100801875B1 - Chair for stretching cervical vertebrae - Google Patents

Abstract

A chair for stretching cervical vertebrae is provided to enable a user to stretch his/her cervical vertebrae and to correct his/her posture conveniently without the help of other people at any place. A chair for stretching cervical vertebrae includes a seat, a backplate, first and second chin supports, and a chin support ascending/descending device. The first and second chin supports are symmetrically installed on the chair to support a user's chin selectively. The chin support ascending/descending device includes first and second cable gears(14,16), a center gear(12), a cable gear guide unit, a rotary plate(26) and a handle(28). The center gear is installed inside a center gear casing, engages with the first and second cable gears simultaneously, and drives the first and second cable gears linearly by two directional rotation.

Description

Cervical towing chair {chair for stretching cervical vertebrae}

The present invention relates to a chair, and more particularly, to a chair for cervical traction to allow the cervical spine of the body to be corrected correctly or to perform stretching exercises by themselves.

The cervical vertebrae is the uppermost part of the spine, made of seven spines, between the head and spine, with the opening of the vertebral arteries, veins, and sympathetic plexus.

Stress interferes with the transmission of nerves from the brain to each part of the body, usually because the muscles of the neck and back are so tense that the bones are not evenly pulled, and the spine is skewed. And when neurotransmission from the brain to each tissue cell is interrupted, our body's organic relationships are broken.

If the cervical spine is skewed, it also affects the internal organs and nerves associated with it, causing a variety of symptoms. . In addition to the treatment of diseases caused by cervical spine diseases, ordinary people also need regular stretching exercises to straighten the cervical spine for smooth metabolism. In other words, by stimulating the cervical spine or physical exercise can not only relax the entire body and to relieve fatigue, but also the treatment of low back pain, shoulder stiffness, arthritis or organ abnormalities.

 However, in a busy daily life, it is not easy for a healthy general person to periodically perform cervical stimulation. It is also true that purchasing equipment or equipment to assist cervical stretching exercises is burdensome in terms of cost or location.

An object of the present invention for the above problems, to provide a cervical traction chair to be able to conveniently correct the stretching and posture of the cervical spine at any place where the chair can be installed without the help of others.

It is a specific object of the present invention to provide a cervical traction chair which can be driven using mechanical means and whose traction speed can be easily adjusted.

The above object is in a chair comprising a seat and a backrest,

The first and second jaw buttress and the jaw butt lifting device for selectively raising and lowering the first and second jaw butt is installed symmetrically to the chair can support the both sides of the user but the jaw butt lifting device Is,

Flexible first and second cable gears which are connected to the first and second jaw rests, respectively, having gear teeth formed on one surface thereof; A center gear installed in a fixed center gear casing, which is meshed with the first and second cable gears at the same time to linearly start the first and second cable gears by bidirectional rotation; Cable gear guide means for maintaining power between the center gear, the first and second cable gears, and the center gear and enabling power transmission; A rotating plate connected to the center gear through a power transmission means for rotating the center gear in both directions; It is achieved by a cervical traction chair characterized in that it comprises a handle installed on the edge of the rotating plate for rotating the rotating plate.

According to the invention the power transmission means,

A main shaft, one end of which is connected to the center gear and the other end of which is connected to the rotating plate so as to be power-transmittable when the other end is in the first position with the rotating plate fitted; A driving socket fitted to an outer circumference of the main shaft to be movable along the longitudinal direction of the main shaft and having first teeth formed on a surface of the main shaft; A driven socket installed on the center gear in a direction toward the driving socket, the driven socket having a second tooth engaged with the first tooth; To reduce the rotational speed of the rotating plate to transfer to the center gear, when the rotating plate is in the second position in the state fitted to the main shaft, the carrier and the driving socket is connected at the same time the drive socket and the driven socket A planetary gear portion meshed with and mounted on the main shaft such that the sun gear and the rotating plate are connected to each other; Socket release means for releasing the engagement state between the driving socket and the driven socket when the rotating plate is moved from the second position to the first position; And positioning means for positioning said rotating plate in said first or second position.

According to the present invention, the positioning means; Grooves spaced apart in parallel to a circumferential surface along a longitudinal direction of the main shaft; A positioning pin installed inside the rotating plate and elastically fitted to the groove; First and second protrusions protruding from both sides of the rotating plate; A first connecting plate provided with a first groove and a male and female coupling with a first protrusion and integrally connected to the main shaft; It is fitted to the outer circumference of the main shaft, it is characterized in that it comprises a second connecting plate which is provided with a second groove and male and female coupling with the second gear integrally connected to the sun gear.

According to the above configuration, there is provided a chair for cervical traction that can be manually operated by mechanical means. According to this, the user can raise and lower the jaw rest supporting the jaw by turning the handle on his own. The raised biceps hold the head up and allow the cervical spine to straighten out.

According to another feature of the present invention, a cervical traction chair capable of speed regulation at high and low speeds is achieved. The user can use the cervical traction chair of the present invention to freely perform cervical stretching even during work or study.

Hereinafter, with reference to the accompanying drawings in the detailed description of the present invention will be described in more detail. 1 is a rear view of a chair for cervical traction according to an embodiment of the present invention. 2 is a plan view of a chair for cervical traction according to an embodiment of the present invention. Figure 3 is a schematic exploded perspective view of the core parts of the lifting device according to an embodiment of the present invention, Figure 4 is a cross-sectional view of the disassembled state, Figure 5 is a cross-sectional view of the combined state. 6 is a configuration diagram illustrating a coupling relationship and an operation relationship between a center gear and a cable gear. 7 to 8 are cross-sectional views for explaining the operating state of the center gear and the cable gear.

The chair 100 basically includes a seat 102 and a backrest 104. The first and second jaw rests 2 and 4, which can selectively support the user's both jaw parts, are installed symmetrically on the seat or the backrest. The first and second jaw rests 2 and 4 are preferably selected from a cushion material and have a shape that can be in close contact with the curved surface of the chin or neck of the body. The first and second jaw rests 2 and 4 are installed to be lifted up and down simultaneously or individually or simultaneously. To this end, the pillar 6 is fixed to the backrest 104 in the vertical direction, and the bracket 8 is installed to slide along the pillar 6. On both sides of the bracket, the first and second jaw rests 2 and 4 are rotatably installed on the horizontal plane via the crosspiece 10.

The core of the present invention resides in a jaw lifter for lifting up and down the first and second jaw rests 2,4 as shown in FIG. 3 by a mechanical method. The bib lift device rotates one center gear 12 to equally supply the lifting force to the first and second bib supports 2 and 4, respectively. To this end, flexible first and second cable gears 14 and 16, one end of which is connected to the first and second jaw rests 2 and 4, respectively, have gear teeth formed thereon. Each other end of the first and second cable gears 14 and 16 is meshed with the center gear 12 at the same time. The first cable gear 14 is connected to the first jaw rest 2 located on the left side in the rear view, and the second cable gear 16 is connected to the second jaw rest 4 located on the right side. When the center gear 12 is rotated in the clockwise direction, the first and second cable gears 14 and 16 are linearly moved in the direction of raising the first and second jaw rests 2 and 4, respectively.

The center gear 12 is installed inside the center gear casing 18 fixed to any one of the chairs. Bidirectional rotation of the center gear 12 causes the first and second cable gears 14 and 16 to linearly start. Cable gear guide means for maintaining power between the center gear 12 and the first and second cable gears 14 and 16 is possible. The cable gear guide means is installed in the center gear casing 18 and includes several guide gears 20 and guide rollers 22.

In order to transfer the force transmitted from the center gear 12 by the first and second cable gears 14 and 16 to the first and second jaw rests 2 and 4, the guide support 24 is provided in the vicinity of the jaw rest. It is fixedly installed. Guide support 24 is preferably fixed to the back of the backrest 104.

When the center gear 12 rotates in the clockwise direction, as shown in FIG. 6, the first and second cable gears 14 and 16 and the first and second jaw rests 2 and 4 connected thereto are applied in a rising direction. If it is rotated counterclockwise, it will receive a force in the downward direction. Therefore, by rotating only the center gear 18, it is possible to raise and lower the first and second jaw rest (2,4) at the same speed at the same time.

The rotational force applied to the center gear 12 is a rotating plate 26 connected to the center gear 12 through a power transmission means, and a handle installed at the edge of the rotating plate 26 to rotate the rotating plate 26 by hand ( 28). When the handle 28 is rotated as if the fishing reel is wound, the rotating plate 26 and the center gear 12 connected thereto are rotated.

The present invention is an important feature of the power transmission means that can transmit the rotational force of the rotating plate 26 to the center gear 12 so that the speed can be adjusted step by step. Hereinafter, the power transmission means will be described.

One end of the main shaft 30 is connected to the center gear 12 and the other end thereof is selectively connected to the rotating plate 26.

The rotating plate 26 is fitted to the outer circumference of the main shaft 30 in the form of a bearing so as to allow free rotation and to move along its longitudinal direction. The handle 28 may be rotated in the range of 90 ° about the hinge axis 32 to be perpendicular to or in alignment with the rotating plate 26. The handle 28 can be easily turned by hand in a state where the handle 28 is perpendicular to the rotating plate 26. The handle 28 may be located in line with the turntable 26. When the handle 28 is in line with the rotary plate 26 in this way, the rotary plate 26 can be easily moved to the first position P1 or the second position P2 along the longitudinal direction of the main shaft 30. (See Figure 5). Details thereof will be described later.

The driving socket 38 having the first teeth 34 formed on the surface facing the center gear 12 is fitted to the outer circumference of the main shaft 30 so as to be movable along the longitudinal direction of the main shaft 30. In addition, a driven socket 40 having a second tooth 36 engageable with the first teeth 34 is integrally installed on the center gear 12 in a direction toward the driving socket 38. The rotational force may be transmitted from the driving socket 38 to the driven socket 40 through the engagement of the first and second teeth 34 and 36. The rotating plate 26 is configured to push the driving socket 38 in the direction toward the driven socket 40 through the pressing barrel 42 fitted to the outer circumference of the main shaft 30 in the form of a bushing.

The main shaft 30 is connected to the center gear 12 integrally with each other. Since the rotation of the main shaft 30 means the rotation of the center gear 12, the rotation speeds of the main shaft 30 and the center gear 12 are the same.

According to the present invention, there is provided a deceleration means for reducing the rotational speed of the rotating plate 26 to transmit to the center gear (12). The deceleration means can optionally be used by the user. As the deceleration means, a mechanical configuration for selectively changing the planetary gear portion 44 and the power transmission line is used, which will be described below.

The planetary gear portion 44 is composed of a sun gear 46, a planetary gear 48 and a casing ring gear 50, as is known, the planetary gear 48 is connected to each other by a carrier (52). The planetary gear 48 has planetary motion about the sun gear 46 by the rotation of the sun gear 46. The rotation speed of the sun gear 46 is decelerated by the rotation speed of the planetary gear 48.

The planetary gear portion 44 is installed on the main shaft 30, the sun gear 46 is the input end, the carrier 52 of the planetary gear is the output end. The carrier 52 and the driving socket 38 are connected to each other by key means to enable torque transmission. For example, a key groove 39 may be formed on the outer circumferential surface of the driving socket 38, and a key inserted into the key groove may be installed at the hub of the carrier 52.

When the rotating plate 26 is in the second position P2 while being fitted to the main shaft 30, the carrier 52 and the driving socket 38 are connected and the driving socket 38 and the driven socket 40 are They are meshed with each other and the sun gear 46 and the rotating plate 26 are connected.

According to the present invention, the positioning means for causing the rotary plate 26 to be positioned on the main shaft 30 in the first position P1 or the second position P2 shown in FIG. 5 is included.

The first and second grooves 54 and 56 are spaced apart in parallel to the circumferential surface along the longitudinal direction of the main shaft 30. Further, the third groove 58 is further recessed between the first and second grooves 54 and 56, which is the neutral position P3 such that the rotating plate 26 does not transmit rotational force anywhere (see FIG. 5).

The positioning pin 60 is installed inside the rotating plate 26 to elastically fit in any one of the first, second and third grooves 54, 56 and 58. The positioning pin 60 is elastically deviated from the main shaft 30 by the first spring 62 supported at one end on the inner wall surface of the rotating plate and the other end on the flange 60a of the positioning pin.

The first and second protrusions 64 and 66 protrude from both sides of the rotating plate 26, respectively. The first connecting plate 68 is integrally attached to the end of the main shaft 30. The first connecting plate 68 is provided with a first groove 72 that can be male and female coupled with the first protrusion 64. The second connecting plate 70 integrated with the sun gear 46 is fitted to the outer circumference of the main shaft 30 in the form of a bushing. The second connecting plate 70 is provided with a second groove 74 for male and female coupling with the second protrusion 66.

Therefore, when the positioning pin 60 is fitted to the first groove 54 (see FIG. 7), the rotating plate 26 is connected to the first connecting plate 68 to transmit the rotational force to the main shaft 30. When the positioning pin 60 is fitted to the second groove 56 (see FIG. 8), the rotating plate 26 is connected to the second connecting plate 70 to transmit the rotational force to the sun gear 46. . The position of the positioning pin 60 is adjusted by pushing or pulling the rotating plate 26 in the extending direction of the main shaft 30. As mentioned, the state where the positioning pin 60 is fitted to the third groove 58 as in FIG. 5 is in a neutral state.

In a state where the handle 28 is perpendicular to the rotating plate 26, the positioning pin 60 is strongly fitted into the grooves 54, 56, and 58 at the corresponding positions. In a state where the handle 28 is in line with the rotating plate 26, the positioning pin 60 is separated from the grooves 54, 56, 58 of the corresponding position. In such a state that the positioning pin 60 is separated from the grooves 54, 56, and 58, the rotating plate 26 may be freely moved along the main shaft 30. The contact surface 28a with the positioning pin 60, which is the tip of the handle 28, functions like a cam. When the handle 28 is at right angles to the rotating plate 26, the positioning pin 60 is pressed in the center direction of the main shaft 30 so that the rotating plate 26 is locked to the main shaft 30. When the handle 28 is in line with the rotating plate 26, the binding of the rotating plate 26 and the main shaft 30 is released.

On the other hand, when the rotating plate is moved from the second position (P2) to the first position (P1) there is provided a socket release means for releasing the engagement state of the drive socket 38 and the driven socket (40). This works when the rotor plate 26 and the handle 28 are in a straight line, that is, when the positioning pin 60 is in the disengaged state from the grooves 54, 56, 58.

The pressing member 76 having two elongated fingers 78 is installed to penetrate the center gear 12 so that the tip of the finger 78 is elastically supported toward the driving socket 38. The finger 78 has an arcuate cross section, and an arcuate groove 12a identical to the cross-sectional shape of the finger 78 is drilled in the center gear 12. Since the finger 78 penetrates the center gear 12, the pressing member 76 rotates together with the center gear 12. The tip of the finger 78 is elastically supported toward the drive socket 38 by a second spring 80 installed in the center gear casing 18. The drive socket 38 is connected to receive the rotational force from the carrier 52, and is further movable along the main shaft 30.

In the state where the positioning pins 60 are separated from all the grooves 54, 56, and 58, the finger 78 of the pressing member is driven by the elastic force of the second spring 80 to drive the driving socket 38. Is pushed away from Therefore, when the driving socket 38 and the driven socket 40 are separated, the center gear 12 may be rotated only by the rotation of the main shaft 30.

Up to this point, the configuration for raising and lowering the first and second jaw rests 2 and 4 has been described. However, when the first and second jaw rest (2,4) is not in use, it is desirable to be open to both sides of the user. That is, a means for activating the first and second jaw rests 2 and 4 in the left and right directions is required. Hereinafter, the actuation means of the first and second jaw rest will be described with reference to FIG. 2.

As shown in FIG. 2, the jaw rests 2 and 4 are rotatably activated around the pivot shaft 82. In front of the jaw buttress 2,4, a jaw butt fixing means such as a string member 84 having a velcro tape is installed. The first and second jaw rests 2 and 4 are supported at one end of the crosspiece 10 installed on the pillar 6 and the other end of the torsion springs are supported at any one point of the first and second jaw rests 2 and 4. Receive elastic force in the direction apart from each other by (86). That is, when the user wants to use the device, the first and second jaw rests (2,4) are held in the jaw area and then the straps (84) are used to maintain the retracted state. Done.

Hereinafter, operation states for each mode will be described with reference to FIGS. 5, 7, and 8.

First, a state in which the first and second jaw rests 2 and 4 are raised at high speed will be described with reference to FIG. 7. The positioning pin 60 is fitted to the first groove 54. The first protrusion 64 of the rotating plate is fitted into the first groove 72 of the first connecting plate 68. The finger 78 of the pressing member pushes the driving socket 38 so that the driving socket 38 and the driven socket 40 are released.

Holding the handle 28 in this state and turning the rotary plate 26, the main shaft 30 is rotated, the center gear 12 is integrally connected to the main shaft 30 is rotated, respectively to the center gear 12 The first and second cable gears 14 and 16 engaged with each other are linearly moved in opposite directions. In this state, the rotation speed of the main shaft 30 and the center gear 12 become equal.

5 shows a state in neutral. The positioning pin 60 is fitted to the third groove 58. Each projection 64,66 of the rotating plate is not fitted anywhere. Since the rotating plate 26 is fitted to the main shaft 30 so as to be freely rotatable, only the rotating plate 26 is rotated even when the handle 28 is rotated in any direction.

FIG. 8 shows a state in which the first and second jaw rests 2 and 4 can be raised or lowered at a low speed. The positioning pin 60 is fitted to the second groove 56. The rotary plate 26 pushes the pressing tube 42 to engage the drive socket 38 and the driven socket 40. In addition, the second protrusion 66 of the rotating plate 26 is fitted into the second groove 74 of the second connecting plate 70. At the same time, the first protrusion 64 is separated from the first groove 72.

In this state, when the rotating plate 26 is rotated using the handle 28, the second connecting plate 70 and the sun gear 46 integrally connected thereto are rotated. When the sun gear 46 rotates, the planetary gear 48 rotates the driving socket 38 while making an orbital motion about the sun gear 46. Accordingly, the driven socket 40 engaged with the driving socket 38 rotates, and the center gear 12 integrated with the driven socket 40 rotates. The first and second cable gears 14 and 16 meshed with the center gear 12 respectively have linear motions in opposite directions. In this state, the rotation of the main shaft 30 is transmitted to the center gear 12 in a decelerated state.

Although not shown, according to an embodiment of the present invention, a heating means for warming the neck of the user may be further installed in the jaw rest. The temperature of the heater may be controlled by the controller. The heating coil may be any heating means. This is to double the effect of massage or stretching exercises by warming the neck at the same time as the traction of the cervical spine.

1 is a rear view of a chair for cervical traction according to an embodiment of the present invention.

2 is a plan view of a chair for cervical traction according to an embodiment of the present invention.

Figure 3 is a schematic exploded perspective view of the core parts of the lifting device according to an embodiment of the present invention, Figure 4 is a cross-sectional view of the disassembled state, Figure 5 is a cross-sectional view of the combined state.

6 is a configuration diagram illustrating a coupling relationship and an operation relationship between a center gear and a cable gear.

7 to 8 are cross-sectional views for explaining the operating state of the center gear and the cable gear.

Explanation of symbols on the main parts of the drawings

2,4; 1st and 2nd bib 12; Center gear

14,16; First and second cable gears 26; Tumbler

28; Handle 30; principal axis

34, 36; 1st, 2nd teeth 38,40; Drive socket, driven socket

44; Planetary gear sections 54,56,58; 1st, 2nd, 3rd groove

60; Positioning pin 64,66; 1st, 2nd projection

68,70; First and second connecting plates 72,74; Pushing member

78; Finger 84; String

86; Torsion spring

Claims (6)

In the chair (100) comprising a seat (102) and a backrest (104), Selectively raising and lowering the first and second jaw rests 2 and 4 and the first and second jaw rests 2 and 4 that are installed symmetrically on the chair 100 to selectively support both sides of the user's jaw. Including bib lift device for the bib lift device; Flexible first and second cable gears 14 and 16 connected to the first and second jaw rests 2 and 4, respectively, having gear teeth formed on one surface thereof; The center is installed in the center gear casing 18, and is meshed with the first and second cable gears 14 and 16 at the same time so as to linearly start the first and second cable gears 14 and 16 by bidirectional rotation. Gear 12; Cable gear guide means for maintaining power in a state where the center gear 12 and the first and second cable gears 14 and 16 and the center gear 12 are engaged; A rotary plate 26 for rotating the center gear 12 in both directions and connected to the center gear through a power transmission means; Cervical traction chair characterized in that it comprises a handle 28 is installed on the edge of the rotating plate 26 to rotate the rotating plate (26). According to claim 1, The power transmission means; One end is connected to the center gear 12 and the other end is selectively coupled to the rotating plate 26 to enable power transfer when the rotating plate 26 is in the first position (P1) in the fitted state ; A driving socket 38 fitted to an outer circumference of the main shaft 30 so as to be movable along the longitudinal direction of the main shaft 30 and having first teeth 34 formed on a surface facing the center gear 12; A driven socket 40 installed in the direction toward the driving socket 38 on the center gear 12 and having a second tooth 36 engaged with the first tooth 34; To reduce the rotational speed of the rotary plate 26 to the center gear 12, when the rotary plate 26 is in the second position (P2) in the state fitted to the main shaft 30, the carrier ( 52 and the driving socket 38 are connected at the same time, the driving socket 38 and the driven socket 40 is meshed with each other, the sun gear 46 and the rotating plate 26 are connected to the main shaft 30 Planetary gear unit 44 is installed in; Socket release means for releasing the engagement state between the driving socket 38 and the driven socket 40 when the rotating plate 26 is moved from the second position P2 to the first position P1; Cervical traction chair characterized in that it comprises a positioning means for positioning the rotary plate 26 in the first position (P1) or the second position (P2). The method of claim 2, wherein the positioning means; First and second grooves 54 and 56 spaced apart from and parallel to the circumferential surface along the longitudinal direction of the main shaft 30; A positioning pin (60) installed inside the rotating plate (26) and elastically fitted to any one of the grooves (54, 56); First and second protrusions 64 and 66 protruding from both sides of the rotary plate 26; A first connecting plate 68 provided with a first groove 72 for male and female coupling with the first protrusion 64 and integrally connected to the main shaft 30; The second connecting plate 70, which is fitted to the outer circumference of the main shaft 30, is provided with a second groove 74 that is male and female coupling with the second protrusion 66, and is integrally connected to the sun gear 46. Cervical traction chair comprising a. The method of claim 2, wherein the socket release means; The drive socket (38) is movable along the main shaft (30); An arc groove 12a is provided in the center gear 12; It is installed so as to be elastically supported toward the drive socket 38 by a second spring (80) installed in the center gear casing (18); Having two elongated fingers 78 that can be fitted into the arc groove 12a penetrates the center gear 12 to force the drive socket 38 to be separated from the driven socket 40. Cervical traction chair characterized in that it comprises a pressing member (76). The method according to claim 1, wherein the first and second jaw rests (2,4) are capable of rotationally maneuvering about a pivot (82); Jaw butt fixing means such as a string member 84, one end is supported on the crosspiece 10 is installed on the pillar (6) fixed upright to the chair, the other end of the first and second jaw butt (2, 4) By including a torsion spring (86) respectively supported at one point, cervical traction chair characterized in that the elastic force is received in a direction apart from each other. The cervical traction chair according to claim 1, further comprising heating means for warming the neck of the user in the first and second jaw rests (2,4).

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