Multi-roller acupressure device

Abstract

The present invention relates to a multi-roller acupressure device and, more specifically, to a multi-roller acupressure device capable of applying acupressure to a body part of a user ranging from the head to the thigh through a plurality of acupressure rollers in response to movement of the user and improving an acupressure effect on the waist. The multi-roller acupressure device comprises: a frame member including a frame that forms a frame structure and is disposed in a horizontal orientation at a predetermined height above the ground; and a plurality of acupressure roller sets each including a rotary shaft that has a rod shape, is disposed in the lateral direction within the frame, and has both ends axially coupled to the frame, a plurality of acupressure rollers that rotate integrally with the rotary shaft, are provided in the longitudinal direction of the rotary shaft, and are capable of applying acupressure to a user's body, the plurality of acupressure roller sets being arranged within the frame along a front-to-rear direction.

Description

Multi-roller acupressure device

[0001] The present invention relates to a multi-roller acupressure device, and more specifically, to a multi-roller acupressure device capable of effectively applying acupressure from the user's head to the thighs through a plurality of acupressure rollers according to the user's movements.

[0002] In general, acupressure has established itself as an alternative therapy that can have a positive effect on health by applying pressure to specific areas to improve blood circulation, relax muscles, relieve tension, and alleviate pain.

[0003] Various devices and tools for such acupressure are being developed and sold, and as an example, Korean Utility Model Publication No. 20-2020-0000661 (hereinafter referred to as the 'Cited Invention') discloses a device developed by the applicant of the present invention.

[0004] The cited invention is configured such that a plurality of roller rods are installed on a frame, and a user lies on the upper side of the plurality of roller rods and pushes and pulls a handle provided on the frame back and forth, thereby enabling acupressure on the user's back, waist, and buttocks according to the user's movements.

[0005] However, the roller rods applied in the cited invention cannot apply pressure to the user's head or neck area, and the individual roller rods capable of applying pressure to the waist and hips do not take into account the height difference between the waist and hips of a lying user, resulting in a problem where proper pressure is not applied to the waist.

[0006] The present invention aims to solve the aforementioned problems by providing a multi-roller acupressure device that enables acupressure on body parts ranging from the user's head to the thighs through multiple acupressure rollers according to the user's movements, and can enhance the acupressure effect on the waist.

[0007] The multi-roller pressure device of the present invention for achieving the above objective comprises: a frame member including a frame that forms a frame shape and is positioned to lie flat at a predetermined height from the ground; A set of acupressure rollers is provided in a plurality of directions within the frame, and there are multiple acupressure rollers provided in a plurality of directions within the frame, which are arranged laterally within the frame and formed in the shape of a rod, and whose ends are axially coupled to the frame, and which rotate integrally with the acupressure roller and are provided in a plurality of directions along the length of the acupressure roller and capable of applying pressure to the user's body; wherein, as a user lying down supported by the plurality of acupressure rollers moves back and forth, a body part from the head to the thigh is applied by the plurality of acupressure rollers, and the plurality of acupressure roller sets include a first set of acupressure rollers that include multiple acupressure rollers capable of applying pressure to the user's thigh muscles (and gluteal muscles), and a second set of acupressure rollers that include multiple acupressure rollers capable of applying pressure to the user's waist (or abdomen), and the first set of acupressure rollers and the second set of acupressure rollers are provided spaced apart from each other so that the hip bone area of ​​a user lying down in an upright position can be positioned between them.

[0008] Additionally, the plurality of acupressure rollers constituting the first acupressure roller set comprises a first-1 acupressure roller provided at the center of the rotation axis and a plurality of first-2 acupressure rollers provided on each side of the first-1 acupressure roller, wherein the first-1 acupressure roller comprises a pubic bone acupressure portion in the form of a wheel having a convex outer surface and an inguinal lymph node acupressure portion formed in the form of a wheel having a convex outer surface and a thickness thinner than the pubic bone acupressure portion and integrally formed with the pubic bone acupressure portion on both sides of the pubic bone acupressure portion, and the first-2 acupressure roller may form a wheel having a convex outer surface and a diameter smaller than that of the inguinal lymph node acupressure portion.

[0009] Additionally, the second pressure roller set is arranged in a front-to-back adjacent manner with at least two rollers, and the plurality of pressure rollers constituting the second pressure roller set include a second-1 pressure roller that is formed in a shape similar to a horizontal cylinder and is provided at the center of a rotation axis, and a second-2 pressure roller that is formed in a wheel shape having a convex outer surface and is provided in a plurality on each side of the second-1 pressure roller, wherein the second-1 pressure roller includes a thoracolumbar receiving portion having a concave outer surface and a spinal erector muscle pressure portion having a convex outer surface that is integral with the thoracolumbar receiving portion on both sides of the thoracolumbar receiving portion, and the second-2 pressure roller may be formed to have a larger diameter than the second-1 pressure roller.

[0010] Additionally, the plurality of acupressure roller sets further include a third acupressure roller set capable of applying acupressure to the user's back (or chest) and shoulders, and a fourth acupressure roller set capable of applying acupressure to the user's head and neck. The plurality of acupressure rollers constituting the third acupressure roller set may include a third-1 acupressure roller that is shaped like a wheel and includes a thoracic spine receiving portion having a concave outer surface and is provided at the center of the rotation axis, and a third-2 acupressure roller that is shaped like a wheel and has a convex outer surface and is spaced apart on both sides of the third-1 acupressure roller to apply acupressure to the user's shoulders. The plurality of acupressure rollers constituting the fourth acupressure roller set may include a fourth-1 acupressure roller that is shaped similarly to a horizontal cylinder, has a convex center on the outer surface, and is formed concavely on the outer surface excluding the center, and is provided at the center of the rotation axis.

[0011] Additionally, it further includes a buttock support plate that forms a plate shape and is installed on the inner side of the frame, allowing the buttocks of a user lying in an upright position to rest on the upper side of a plurality of acupressure roller sets; wherein the buttock support plate is installed between the first acupressure roller set and the second acupressure roller set and can be positioned lower than the point where the acupressure roller and the user come into contact.

[0012] According to the present invention, acupressure can be applied to the body parts of a user from the head to the thigh through the multiple acupressure rollers according to the forward and backward movements of a user lying on the upper side of the multiple acupressure roller sets, and in particular, the hip bone area of ​​a user lying in an upright position between the first acupressure roller set and the second acupressure roller set can be positioned lower than the acupressure rollers, thereby improving the acupressure effect on the lower back of a user lying in an upright position.

[0013] FIG. 1 is a perspective view showing a multi-roller acupressure device according to the present invention.

[0014] FIG. 2 is a plan view showing the multi-roller acupressure mechanism of the present invention,

[0015] FIG. 3 is a side view showing a user lying in an upright position on the multi-roller acupressure device of the present invention.

[0016] FIG. 4 is a front view showing a first pressure roller set and a second pressure roller set applied to the multi-roller pressure device of the present invention.

[0017] FIG. 5 is a front view showing a third pressure roller set and a fourth pressure roller set applied to the multi-roller pressure device of the present invention.

[0018] In the present invention, a frame member comprising a frame that forms a frame shape and is positioned to lie flat at a predetermined height from the ground, so as to enable acupressure on body parts extending from the user's head to the thighs through a plurality of acupressure rollers according to the user's movement and to enhance the acupressure effect on the waist; A multi-roller acupressure device comprising: a rotation axis that forms a rod shape and is arranged laterally within a frame, with both ends axially coupled to the frame; a plurality of acupressure roller sets that rotate integrally with the rotation axis and are provided in the longitudinal direction of the rotation axis and capable of applying acupressure to the user's body, wherein a plurality of acupressure roller sets are provided in the front and rear directions within the frame; wherein, as a user lying down supported by the plurality of acupressure rollers moves back and forth, a body part from the head to the thigh is applied by the plurality of acupressure rollers, and wherein the plurality of acupressure roller sets include a first acupressure roller set comprising a plurality of acupressure rollers capable of applying acupressure to the user's thigh muscles (and gluteus maximus), and a second acupressure roller set comprising a plurality of acupressure rollers capable of applying acupressure to the user's waist (or abdomen); and wherein the first acupressure roller set and the second acupressure roller set are arranged to be spaced apart from each other so that the iliac bone area of ​​a user lying upright can be positioned between them. I propose.

[0019] The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by those skilled in the art within the scope of the technical essence of the present invention.

[0020] Hereinafter, the multi-roller acupressure mechanism of the present invention will be described in detail with reference to the attached FIGS. 1 to 5.

[0021]

[0022] The multi-roller acupressure device of the present invention includes a frame member (100) as shown in FIGS. 1 to 3 and a plurality of acupressure roller sets (200) that are rotatably installed on the frame member (100) to apply acupressure to the user's body.

[0023] The frame member (100) includes a frame (110) that forms a frame shape and is positioned to lie down at a predetermined height from the ground. The frame (110) may be formed in the shape of a square frame, for example, and it is preferable that the frame be formed in a rectangular shape having a long length in the front-to-back direction when viewed from a plane, so that when a user lies down in the front-to-back direction on the upper side of the frame (110), at least the user's upper body, buttocks, and upper thighs are positioned within the frame (110).

[0024] For the rotation of the pressure roller set (200) installed on the frame (110), the frame (110) is positioned at a predetermined height from the ground, and for this purpose, the frame member (100) may further include support legs (120). For example, the support legs (120) may be provided facing downward at each corner of the frame (110) and may be configured to be adjustable in length.

[0025] Additionally, the frame member (100) may further include a handle (130) so that a user lying on the upper side of the frame (110) can easily move back and forth by pulling or pushing. For example, the handle (130) may be provided upwardly at the front end of the frame (110) and may be formed in various shapes, such as a 'U' shape or a 'U' shape, which are open downwards. However, it is preferable that the handle (130) be configured to include a handle bar positioned laterally on the upper side, spaced apart from the front end of the frame (110) by a predetermined distance, so that a user lying on the upper side of the frame (110) can extend both arms forward and grasp it with both hands.

[0026] A plurality of acupressure roller sets (200) are provided in the front and back within the frame (110) and serve to support and apply pressure to a user lying on the upper side of the frame (110). This acupressure roller set (200) includes a rotation axis (110) that forms a rod shape and is coupled to the frame (110) to rotate axially, and an acupressure roller that is integral with the rotation axis (110), rotates axially together with the rotation axis (110), and can apply pressure to the user's body. For example, the ends of the rotation axis (110) can be axially connected to two frame bars that are arranged in the front-rear direction and spaced apart from each other in the lateral direction while forming a frame (110) formed in the shape of a square frame, and the pressure rollers can be formed in various shapes such as wheels or tubes and form an integral part with the rotation axis (210) so that they can rotate together when the rotation axis (210) rotates, and multiple rollers are provided along the length of the rotation axis (210) to stably support a user lying on the upper side.

[0027] Accordingly, the user can lie down supported by a plurality of acupressure rollers as shown in Fig. 3, and when the lying user moves back and forth, the body parts from the user's head to the thighs can be massaged by the rotating plurality of acupressure rollers, thereby improving blood circulation in the massaged areas and obtaining effects such as muscle relaxation, tension relief, and pain relief.

[0028] A plurality of acupressure roller sets (200) includes a first acupressure roller set (200a) comprising a plurality of acupressure rollers capable of applying acupressure to the user's thigh muscles (and gluteal muscles) as illustrated in FIGS. 1 to 3, and a second acupressure roller set (200b) comprising a plurality of acupressure rollers capable of applying acupressure to the user's waist (or abdomen). At this time, the first acupressure roller set (200a) and the second acupressure roller set (200b) are spaced apart from each other so that when the user lies in a normal position (lying down with one's upper side facing upward), the user's pelvic bone area can be positioned thereon. Accordingly, between the first acupressure roller set (200a) and the second acupressure roller set (200b), the hip bone area of ​​the user lying in an upright position can be positioned lower than the acupressure roller, thereby enhancing the acupressure effect on the lower back of the user lying in an upright position through the second acupressure roller set (200b).

[0029] Meanwhile, as an example, the plurality of acupressure rollers constituting the first acupressure roller set (200a) may include a first-1 acupressure roller (221a) provided at the center of the rotation axis (210) as shown in FIG. 4a, and a plurality of first-2 acupressure rollers (222a) provided on each side of the first-1 acupressure roller (221a). Specifically, the first-1 acupressure roller (221a) may include a pubic bone acupressure part (11) in the shape of a wheel having a convex outer surface, and an inguinal lymph node acupressure part (12) which has a convex outer surface and forms a wheel shape with a thinner thickness than the pubic bone acupressure part (11) and is integral with the pubic bone acupressure part (11) on both sides of the pubic bone acupressure part (11). At this time, the pubic bone pressure portion (11) of the first-1 pressure roller (221a) may be formed to have a diameter approximately 1.2 to 1.5 times the diameter of the inguinal lymph node pressure portion (12), for example.

[0030] When the user lies down in a normal position on the upper side of the multiple acupressure roller set (200) and moves back and forth, the first acupressure roller (221a) rotates so that the pubic bone acupressure part (11) can apply pressure to the user's pubic bone area, and when the user lies down on the upper side of the multiple acupressure roller set (200) and moves back and forth, the first acupressure roller (221a) rotates so that the inguinal lymph node acupressure part (12) can apply pressure to the user's inguinal lymph nodes.

[0031] And the first-2 acupressure roller (222a) can be formed in the shape of a wheel having a convex outer surface and a diameter smaller than that of the inguinal lymph node acupressure part (12), and the plurality of first-2 acupressure rollers (222a) provided on each side relative to the first-1 acupressure roller (221a) can be formed so that the diameter gradually increases as it goes outward. When a user lies upright on the upper side of the plurality of acupressure roller sets (200) and moves back and forth, the first-2 acupressure roller (222a) can rotate and apply acupressure to the lower part of the user's gluteus maximus and the posterior thigh muscle, and when a user lies face down on the upper side of the plurality of acupressure roller sets (200) and moves back and forth, the first-2 acupressure roller (222a) can rotate and apply acupressure to the user's anterior thigh muscle.

[0032] For example, it is preferable that the second acupressure roller set (200b) be configured such that at least two are arranged adjacently in the front and back to apply pressure to the user's waist (or abdomen) and the lower back. The plurality of acupressure rollers constituting this second acupressure roller set (200b) may include a second-1 acupressure roller (221b) that is formed in a shape similar to a horizontal cylinder and is provided at the center of the rotation axis (210), as shown in FIG. 4b, and a second-2 acupressure roller (222b) that is formed in a wheel shape having a convex outer surface and is provided in a plurality on each side of the second-1 acupressure roller (221b).

[0033] Specifically, the second-1 acupressure roller (221b) may include a thoracolumbar receiving portion (21) having a concave outer surface and a spinal erector muscle acupressure portion (22) having a convex outer surface that is integral with the thoracolumbar receiving portion (21) on both sides of the thoracolumbar receiving portion (21). When a user lies upright on the upper side of a plurality of acupressure roller sets (200) and moves back and forth, the second-1 acupressure roller (221b) rotates so that the thoracolumbar receiving portion (21) stably wraps around the outer side of the thoracic or lumbar spine, and the spinal erector muscle acupressure portion (22) can apply pressure to the spinal erector muscles located on both sides of the thoracic or lumbar spine.

[0034] And the second-2 acupressure roller (222b) may be formed to have a larger diameter than the second-1 acupressure roller (221b), for example, to have a diameter that is about 1.1 to 1.3 times the diameter of the second-1 acupressure roller (221b). When a user lies upright or prone on the upper side of the multiple acupressure roller set (200) and moves back and forth, the second-1 acupressure roller (221b) rotates and can apply acupressure to the user's waist (or abdomen), thereby allowing acupressure to be applied to acupoints related to organs located within the area being applied.

[0035] Meanwhile, as illustrated in FIGS. 1 to 3, the plurality of acupressure roller sets (200) may further include a third acupressure roller set (200c) capable of applying acupressure to the user's back (or chest) and shoulders, and a fourth acupressure roller set (200d) capable of applying acupressure to the user's head and neck, wherein the third acupressure roller set (200c) may be spaced apart from the second acupressure roller set (200b) and the fourth acupressure roller set (200d) may be spaced apart from the third acupressure roller set (200c).

[0036] For example, the plurality of acupressure rollers constituting the third acupressure roller set (200c) may include a third-1 acupressure roller (221c) which is formed in the shape of a wheel and includes a thoracic spine receiving portion (31) having a concave outer surface as shown in FIG. 5a, and a third-2 acupressure roller (222c) which is formed in the shape of a wheel and has a convex outer surface and is spaced apart from the third-1 acupressure roller (221c) to apply acupressure to the user's shoulder. At this time, the third-2 acupressure roller (222c) may be formed to have a diameter similar to that of the third-1 acupressure roller (221c) or a diameter approximately 1.1 to 1.3 times the diameter of the third-1 acupressure roller (221c). Additionally, a plurality of third-2 pressure rollers (222c) may be formed to have the same or different diameters. For example, the third-2 pressure roller (222c) located closest to both ends of the rotation axis (210) may be formed to have a slightly larger diameter than the third-2 pressure roller (222c) located on the inner side thereof.

[0037] When a user lies upright on the upper side of a set of multiple acupressure rollers (200) and moves back and forth, the 3-1 acupressure roller (221c) rotates so that the thoracic spine receiving portion (31) stably wraps around the outer side of the thoracic spine, and the relatively protruding ends on both sides due to the thoracic spine receiving portion (31) can apply pressure to the erector spinae muscles located on both sides of the thoracic spine. Additionally, when a user lies upright or prone on the upper side of a set of multiple acupressure rollers (200) and moves back and forth, the 3-2 acupressure roller (222c) rotates so that it can apply pressure to the back or front of the user's shoulder.

[0038] For example, the plurality of pressure rollers constituting the fourth pressure roller set (200d) may include a fourth-1 pressure roller (221d) which is provided at the center of the rotation axis (210), having a shape similar to a horizontal cylinder as shown in FIG. 5b, with the center of the outer surface convex and the rest of the outer surface excluding the center being concave overall, and may further include a fourth-2 pressure roller (222d) which is provided at each side of the fourth-1 pressure roller (221d), having a wheel shape with a convex outer surface.

[0039] The 4-1 acupressure roller (221d) can be formed to have a shape similar to a drum overall, and when a user lies upright on the upper side of the multiple acupressure roller set (200) and moves back and forth, the 4-1 acupressure roller (221d) rotates and stably wraps around the cervical spine (neck) or the back of the head, and can apply pressure to the cervical spine (neck) or the back of the head with its convex part. And the 4-2 acupressure roller (222d) can apply pressure to the biceps or triceps when the user extends their arm forward toward the handle (130) while lying upright or prone on the upper side of the multiple acupressure roller set (200).

[0040] Meanwhile, the present invention may further include a buttock support plate (300) between the first acupressure roller set (200a) and the second acupressure roller set (200b), which are spaced apart from each other so that the hip bone area of ​​a user lying in an upright position is positioned thereon, as a configuration to prevent excessive sagging of the buttocks. For example, as shown in FIGS. 1 to 3, the buttock support plate (300) forms a plate shape and is installed between the first acupressure roller set (200a) and the second acupressure roller set (200b) within the frame (110) to support the buttocks of a user lying in an upright position on the upper side of the plurality of acupressure roller sets (200). At this time, it is preferable that the buttock support plate (300) be positioned lower than the point where the acupressure roller and the user come into contact, so that the buttocks can be maintained in a state where they are positioned slightly lower than the user's waist positioned on the second acupressure roller set (200b).

[0041] Accordingly, the user can lie down in an upright position on the upper side of a plurality of pressure roller sets (200) and move back and forth so that the entire buttocks do not move away from the buttocks support plate (300), thereby allowing pressure to be applied by the pressure rollers.

[0042] [Explanation of the symbol]

[0043] 11: Pubic bone acupressure point 12: Penile lymph node acupressure point

[0044] 21: Thoracolumbar receptacle 22: Erector spinae pressure point

[0045] 31: Thoracic receptacle

[0046] 100 : Frame member 110 : Frame

[0047] 120 : Support legs 130 : Handle

[0048] 200 : Acupressure Roller Set 200a : 1st Acupressure Roll* Set

[0049] 200b: 2nd acupressure roller set 200c: 3rd acupressure roller set

[0050] 200d : 4th pressure roller set 210 : Rotating shaft

[0051] 221a : 1-1 Acupressure Roller 221b : 2-1 Acupressure Roller

[0052] 221c : 3-1 Acupressure Roller 222d : 4-1 Acupressure Roller

[0053] 222a : 1st-2nd pressure roller 222b : 2nd-2nd pressure roller

[0054] 222c : No. 3-2 Acupressure Roller 222c : No. 4-2 Acupressure Roll 1

[0055] 300 : Buttock support plate

Claims

1. A frame member (100) comprising a frame (110) that forms a frame shape and is positioned to lie down at a predetermined height from the ground; and A set of acupressure rollers (200) is provided in the front and rear directions within the frame (110), comprising a rotating shaft (210) that forms a rod shape and is arranged laterally within the frame (110) and has both ends axially coupled to the frame (110), and a plurality of acupressure rollers that rotate integrally with the rotating shaft (210) and are provided in the longitudinal direction of the rotating shaft (210) and capable of applying pressure to the user's body; wherein, as a user lying down and supported by the plurality of acupressure rollers moves back and forth, a body part from the head to the thigh is subjected to pressure by the plurality of acupressure rollers. The above plurality of acupressure roller sets (200) include a first acupressure roller set (200a) comprising a plurality of acupressure rollers capable of applying acupressure to the user's thigh muscles (and gluteal muscles), and a second acupressure roller set (200b) comprising a plurality of acupressure rollers capable of applying acupressure to the user's waist (or abdomen). A multi-roller acupressure device characterized in that the first acupressure roller set (200a) and the second acupressure roller set (200b) are spaced apart from each other so that the hip bone area of ​​a user lying in an upright position can be positioned between them.

2. In Paragraph 1, The plurality of pressure rollers constituting the first pressure roller set (200a) comprises a first-1 pressure roller (221a) provided at the center of the rotation axis (210) and a plurality of first-2 pressure rollers (222a) provided on each side of the first-1 pressure roller (221a). The above-mentioned first-1 pressure roller (221a) includes a pubic pressure portion (11) in the shape of a wheel having a convex outer surface, and an inguinal lymph node pressure portion (12) in the shape of a wheel having a convex outer surface and a thinner thickness than the pubic pressure portion (11), and which is integral with the pubic pressure portion (11) on both sides of the pubic pressure portion (11). The above-mentioned first- and second pressure rollers (222a) are characterized by having a convex outer surface and forming a wheel shape with a diameter smaller than that of the inguinal lymph node pressure portion (12), forming a multi-roller pressure device.

3. In Paragraph 1, The above second pressure roller set (200b) is arranged with at least two pieces positioned adjacent to each other in the front and back directions, and The plurality of pressure rollers constituting the second pressure roller set (200b) comprises a second-1 pressure roller (221b) having a shape similar to a horizontal cylinder and provided at the center of the rotation axis (210), and second-2 pressure rollers (222b) having a wheel shape with a convex outer surface and provided at each side of the second-1 pressure roller (221b). The above-mentioned second-1 pressure roller (221b) includes a thoracolumbar receiving portion (21) having a concave outer surface and a spinal erector muscle pressure portion (22) having a convex outer surface that is integral with the thoracolumbar receiving portion (21) on both sides of the thoracolumbar receiving portion (21). A multi-roller pressure device characterized in that the above-mentioned second-2 pressure roller (222b) is formed to have a larger diameter than the second-1 pressure roller (221b).

4. In Paragraph 1, The above plurality of acupressure roller sets (200) further include a third acupressure roller set (200c) capable of applying acupressure to the user's back (or chest) and shoulders, and a fourth acupressure roller set (200d) capable of applying acupressure to the user's head and neck. The plurality of acupressure rollers constituting the third acupressure roller set (200c) comprises a third-1 acupressure roller (221c) which is shaped like a wheel and includes a thoracic spine receiving portion (31) having a concave outer surface and is provided at the center of the rotation axis (210), and a third-2 acupressure roller (222c) which is shaped like a wheel and has a convex outer surface and is spaced apart on both sides of the third-1 acupressure roller (221c) to apply acupressure to the user's shoulder. A multi-roller acupressure mechanism characterized in that the plurality of acupressure rollers constituting the above-mentioned fourth acupressure roller set (200d) include a fourth-1 acupressure roller (221d) which is formed in a shape similar to a horizontal cylinder, has a convex center on its outer surface, and has a concave shape on the outer surface excluding the center, and is provided at the center of the rotation axis (210).

5. In Paragraph 1, It further includes a buttock support plate (300) that forms a plate shape and is installed on the inner side of the frame (110) so that the buttocks of a user lying in an upright position can be placed on the upper side of a plurality of pressure roller sets (200). The above-mentioned buttock support plate (300) is installed between the first pressure roller set (200a) and the second pressure roller set (200b) and is positioned lower than the point where the pressure roller and the user come into contact, characterized by a multi-roller pressure device.

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