KR20140052148A - Sit-up bench - Google Patents

Sit-up bench Download PDF

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Publication number
KR20140052148A
KR20140052148A KR1020120116882A KR20120116882A KR20140052148A KR 20140052148 A KR20140052148 A KR 20140052148A KR 1020120116882 A KR1020120116882 A KR 1020120116882A KR 20120116882 A KR20120116882 A KR 20120116882A KR 20140052148 A KR20140052148 A KR 20140052148A
Authority
KR
South Korea
Prior art keywords
link
leg
sit
backrest
leg support
Prior art date
Application number
KR1020120116882A
Other languages
Korean (ko)
Inventor
이상민
이주희
Original Assignee
이상민
이주희
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이상민, 이주희 filed Critical 이상민
Priority to KR1020120116882A priority Critical patent/KR20140052148A/en
Publication of KR20140052148A publication Critical patent/KR20140052148A/en

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/02—Exercising apparatus specially adapted for particular parts of the body for the abdomen, the spinal column or the torso muscles related to shoulders (e.g. chest muscles)
    • A63B23/0205—Abdomen
    • A63B23/0211—Abdomen moving torso with immobilized lower limbs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
    • A63B23/0494—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs primarily by articulating the knee joints

Abstract

The present invention relates to a sit-up bench using a link and, more specifically, to a sit-up bench using a link, capable of enabling a user to simultaneously exercise a lower body and an upper body by doing sit-ups using leg power. The sit-up bench comprises a back support which is installed on the back part of a seat board to be rotatable and a leg support which is installed on the front part of the seat board to be rotatable. The back support and the leg support are connected to each other through a link unit, wherein the link unit comprises a first link of which one end is connected to the leg support; a second link of which one end is connected to the back support and the other end is connected to the free end of the first link; and a third link of which one end is connected to the lower part of a leg of the seat board, and the other end is connected to the center of the first link. By this structure, the back support and the leg support are connected to each other through the link unit, thereby simultaneously exercising abs and legs, and, by pushing up the back support by using leg power, the elderly and infirm who do not have enough power can use the same.

Description

Sit-up bench using a link}

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a sit-up exercising apparatus using a link, and more particularly, to a sit-up exercising apparatus using a link that causes an upper body and a lower body to simultaneously move using a force of a leg.

Generally, sit-up exercises are for exercising the waist and abdominal muscles. It is a movement to repeatedly lift and lower the upper body by lying on the floor. A sit-up bench is a typical exercise equipment for performing sit-up exercises. The bench on the seat is equipped with a footrest on one end of the angle adjustable plate, and adjusts the inclination of the plate according to the user's momentum. However, these bench benches are good for use by people with normal stamina, but can not be used because they can not be used with great power in the case of the elderly or patients who need rehabilitation.

A conventional sit-up raising exercise device that can be used by the elderly or a patient is disclosed in Utility Model Publication No. 20-1995-0009846. In a conventional chair composed of an armrest, a leg, and a backrest, The bellows, which is sprung inward, is fixed to the both sides of the frame and the rear legs of the backrest by the upper and lower pin shafts so that the support frame with the case is attached to the backrest And the shaft and the slide are installed in an orthogonal direction within the case, and each shaft rod and the slide are installed so as to be outwardly protruded by a spring, And a concave groove to which the lower end can be caught. In the conventional abdominal muscles exercise apparatus described above, the backrest is elastically rotated by the elastic force of the spring provided in the rotation section of the backrest and the back leg, and when the user pushes the back on the back, the abdominal muscle is strained. The user is forced to move the abdominal muscles by pushing the back of the user's back, and the restoring force of the spring is different according to the angle of the backrest, and the lower body is not moved.

In addition, Japanese Patent No. 10-0909449 discloses a sit-up exercising apparatus comprising a seat plate; A normal chair comprising a front / rear leg and a backrest; Wherein a load device for transferring a load during rotation of the backrest is provided on a rotating section of the backrest and a footrest is provided on a leg on the front side of the backrest so that the load device is provided with a load adjustment device And the front legs are separately formed into the insertion portion and the draw-out portion, and the footrest can be moved in the forward and backward directions with the tension spring interposed between the insertion portion and the draw-out portion. In other words, it can be combined with abdominal exercise and leg exercise. However, these exercises do not work because the backrest and the footrest are not connected, so that each exercise is practically done.

Japanese Patent Application Publication No. 10-1995-0001892 discloses a system for lifting up a sit-up, comprising: a seat plate having a frame to which a pair of front and rear legs are attached; A back plate portion foldably connected to the seat plate portion; A moving load means attached to both sides of the left plate portion and moving up and down with the front portion receiving the load force; And the amount of the amount

A knee hanger for supporting the knee so that the side ends are detachably connected; A leg support which is built in both sides of the seat plate and projects horizontally forwardly; A footrest connected to a distal end of the leg support to support the foot; And a connecting member for connecting the knee hanger to the footwear. Such a sit-up exercising apparatus can also serve as a leg exercise together with an abdominal exercise, but each exercise is performed by not connecting the backboard and the footwear with each other and not interlocking. After all, the power of the leg can not be used for abdominal exercise.

KR 20-1995-0009846 Y1 (November 23, 1995) KR 10-0909449 B1 (July 20, 2009) KR 10-1995-0001892 B1 (1995.03.06)

Accordingly, the present invention was conceived to solve the problems of the prior art. The present invention provides a link that can be used by the elderly patient or the patient who needs rehabilitation by using the leg force to the waist strength while simultaneously performing the abdominal exercise together with the leg exercise And to provide a sit-up exercise apparatus using the same.

To achieve the above object, according to the present invention, there is provided a lifting mechanism for lifting a body using a link,

A backrest is provided so as to be pivoted at the rear end of the seat,

The leg support is pivoted on the tip of the seat,

And the backrest and the leg support are connected to each other by a link unit so that the backrest and the leg support are interlocked.

Further, the link unit may include a first link, one end of which is connected to the leg support;

A second link having one end connected to the backrest and the other end connected to the free end of the first link;

And a third link, one end of which is connected to the lower portion of the leg of the seat, and the other end of which is connected to the middle of the first link.

Further, the link unit may include a first link, one end of which is connected to the leg support;

A second link having one end connected to the backrest and the other end connected to the free end of the first link;

A third link, one end of which is connected to the bottom of the seat plate and the other end of which is connected to the middle of the first link; .

Further, the seat is characterized in that a handle is provided.

Further, the leg support is characterized by having a footrest.

Since the back-up body and the leg support are linked by the link unit and are interlocked with each other, the sit-up raising exercise mechanism using the link according to the present invention can simultaneously perform both the abdominal muscle exercise and the leg exercise. By lifting the backrest using the leg force, There is also an effect that can be used by people who lack strength such as patients who need exercise.

1 is a perspective view showing the structure of a sit-up raising exercise mechanism using a link according to the present invention.
2 is a side view showing the structure of a sit-up raising exercise mechanism using a link according to the present invention.
FIG. 3 is an operational state diagram of a sit-up raising exercise device using a link according to the present invention. FIG.
4 is a side view showing the structure of a sit-up raising exercise mechanism using a link according to another embodiment of the present invention.

Hereinafter, a sit-up raising exercise mechanism using a link according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the structure of a sit-up raising exercise mechanism using a link according to the present invention, FIG. 2 is a side view showing the structure of a sit- FIG. 5 is an operational state diagram of a sit-up raising exercising apparatus using a link according to an embodiment of the present invention; FIG.

As shown in these drawings, the sit-up raising exercising apparatus using the link according to the present invention includes a seat 10 on which a user can sit, a back 20 provided on the rear end of the seat 10 to support the back, And a link unit 40 for connecting the backrest 20 and the leg support 30 to each other.

The seat 10 is formed in a horizontal plate shape, and a plurality of vertical legs 11 are provided at a lower portion thereof and horizontally installed at a predetermined height from the ground. Here, the legs 11 are integrally connected to several horizontal frames to be stably installed. A handle 12 protruding upward is formed on both sides of the seat 10 so that it can be easily grasped by a hand so that the handle 12 can be easily gripped even if the position of the upper body is changed according to the angle of the back 20, .

The backrest 20 is installed at the rear end of the seat 10 and has a plate shape and one end of the seat 20 is connected to the rear end of the seat 10 by a shaft S, The backrest 20 rotates in the vertical direction. The backrest 20 may be provided with a shock absorber 15 on its back surface to prevent the backrest 20 from being suddenly tilted.

One end of the leg support 30 is connected to the front end of the seat 10 by a horizontal axis S and the other end of the leg support 30 is connected to the foot support 10, (30) rotates in the vertical direction. A footrest 31 is provided at the distal end of the leg support 30. The footrest 31 is made of a material having a self-cushion and is formed in a horizontal cylindrical shape, and is provided on upper and lower parts around the leg support 30. The footrest 31 is installed on the slider 32 which slides along the leg support 30 in the longitudinal direction and the slider 32 can be fixed at a desired position by a fixture not shown in the figure. When the foot is lifted up between the upper and lower footrests 31 by the above structure, the upper footrest 31 is hooked on the foot to lift the footrest 30, and when the foot is lowered, the footrest 31 is hooked on the lower footrest 31, (30) is lowered. At this time, the leg support 30 performs circular motion around the axis S. And a link connecting portion 33 is protruded from the top of the leg support 30 in an upward oblique direction.

The link unit 40 is constituted by a first link 41, a second link 42 and a third link 43 and all the links 41, 42 and 43 are formed with shaft holes at both ends thereof . One end of the first link 41 is connected to the link connection portion 33 of the leg support 30 and the second link 42 is connected to the backrest 20 and the shaft S, The other end of the link 41 and the other end of the second link 42 are connected to each other by an axis S. One end of the third link 43 is coupled to the lower portion of the leg 11 on the axis S and the other end is coupled to the axis S in the middle of the first link 41. 2, when the distal end of the leg support 30 is in contact with the ground and the back 20 is laid horizontally, the first link 41 is inclined in a diagonal direction And the second link 42 designs the length of each link 41, 42, 43 to be vertically positioned. When the leg support 30 rotates upward about the axis S connected to the seat 10, the first link 41 connected to the leg support 30 is pulled toward the front end and is connected to the first link 41 The third link 43 rotates about the axis S connected to the leg 11 and the second link 42 rotates about the axis S to which the third link 43 and the first link 41 are connected, And lifts / That is, the first link 41 performs a seesaw motion, and the second link 42 connected to the first link 41 moves up and down.

An operation state of the sit-up raising exercise mechanism using the link according to the present invention having such a structure will be described in detail.

The exercise apparatus of the present invention is in such a state that the backrest 20 is positioned vertically by the shock absorber 15 and the legrest 30 is positioned horizontally before the user is seated. In this state, when the user sits on the seat 10 and paces the footrest 31, the shock absorber 15 is compressed so that the backrest 20 is slowly laid horizontally and the legrest 30 is downwardly slanted So that its end reaches the ground. In this state, when lifting the foot held on the footrest 31 and lifting the upper body, the backrest 20 is positioned vertically while the legrest 30 is horizontally positioned as shown in FIG. That is, when the leg support 30 is positioned horizontally, the distal end of the link connecting portion 33 is downwardly moved, and when the first link 41 connected thereto is also pulled down to the front end, A portion connected to the second link 42, which is the other end thereof, is raised and lowered about the axis S connected to the link 43. As a result, the second link 42 ascends and descends to lift the back 20. At the same time, holding the handle (12), lifting the upper body, the upper body can be lifted by using the force of the hand. As a result, the legs are transmitted through the link unit to the backrest, allowing the upper body to be easily lifted with less force, making it suitable for the elderly or those in need of rehabilitation. The shaft S of the leg 11 may be inserted into the shaft 11 by forming a shaft hole in the middle portion of the first link 41 in the shaft 11 instead of the third link 43 . At this time, the shaft hole of the first link 41 should be formed as a long hole so that the shaft S can be operated by sliding the first link 41 in the forward direction.

FIG. 4 is a side view illustrating the structure of a sit-up raising exercise mechanism using a link according to another embodiment of the present invention. As shown in the drawing, when the leg support 30 is lowered, the back 20 is vertically positioned Structure.

The positions of the first link 41 and the second link 42 of the link unit 40 are the same as those of the embodiment described above but the third link 43 has one end connected to the middle of the first link 41 And the other end thereof is connected to the lower portion of the seat 10. The imaginary line crossing the axis S of the leg support 30 and the axis S of the link connection portion 33 and the imaginary line crossing the both axes S of the third link 42 are parallel to each other do.

With such a structure, when the user sits on the exercise apparatus according to the present invention and the leg is lowered in the lying state, the horizontal leg support 30 descends and the force is transmitted to the backrest 20, Vertically.

10: seat plate 11: leg 12: handle
20: backrest 30: leg support 32: slider
33: link connecting portion 40: link unit 41: first link
42: second link 43: third link S:

Claims (3)

A backrest (20) is provided so as to be pivoted at the rear end of the seat (10)
A leg support 30 is provided so as to be rotatable at the tip of the seat 10,
Wherein the backrest (20) and the leg support (30) are connected to the link unit (40) so that the backrest (20) and the leg support (30) are interlocked. 2. The apparatus of claim 1, wherein the link unit (30) comprises: a first link (41) having one end connected to the leg support (30);
A second link 42 having one end connected to the back 20 and the other end connected to the end of the first link 41;
And a third link (43), one end of which is connected to the lower part of the leg (11) of the seat (10) and the other end is connected to the middle of the first link (41). 2. The apparatus of claim 1, wherein the link unit (40) comprises: a first link (41) having one end connected to the leg support (30);
A second link 42, one end of which is connected to the back 20 and is connected to the end of the first link 41;
A third link 43 having one end connected to the bottom surface of the seat 10 and the other end connected to the middle of the first link 41; Wherein the link mechanism is configured to move the upper body part to the upper body part.
KR1020120116882A 2012-10-19 2012-10-19 Sit-up bench KR20140052148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120116882A KR20140052148A (en) 2012-10-19 2012-10-19 Sit-up bench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120116882A KR20140052148A (en) 2012-10-19 2012-10-19 Sit-up bench

Publications (1)

Publication Number Publication Date
KR20140052148A true KR20140052148A (en) 2014-05-07

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Application Number Title Priority Date Filing Date
KR1020120116882A KR20140052148A (en) 2012-10-19 2012-10-19 Sit-up bench

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160109317A (en) * 2015-03-11 2016-09-21 황두엽 Body fitness equipment
CN112090037A (en) * 2020-08-04 2020-12-18 黄香雨 Chair is tempered to belly
CN113457079A (en) * 2021-07-19 2021-10-01 吉林大学 Sit-up trainer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160109317A (en) * 2015-03-11 2016-09-21 황두엽 Body fitness equipment
CN112090037A (en) * 2020-08-04 2020-12-18 黄香雨 Chair is tempered to belly
CN112090037B (en) * 2020-08-04 2021-10-15 鹤壁市人民医院 Chair is tempered to belly
CN113457079A (en) * 2021-07-19 2021-10-01 吉林大学 Sit-up trainer
CN113457079B (en) * 2021-07-19 2021-11-09 吉林大学 Sit-up trainer

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