JP2009006096A - Lumbago preventive and relieving chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lumbago preventive and relieving chair, relieving the pain, correcting a person's posture and preventing lumbago when being seated on the chair. <P>SOLUTION: In this chair, the relative angle made between the respective surfaces of a seating surface 1 inclined backward and made shallow and a movable waist pad 2 is always kept at an acute angle using a resilient body such as a return blade 10 provided between a strut 9 and the movable waist pad 2, and when being seated, a person's waist abuts against the movable waist pad 2 without consciousness, so that the angle of inclination of the movable waist pad 2 can be varied in a fixed range by applying force by upper body 's action. Further, when a restrain stopper part 6a of a rear leg 4a abuts on the back of the strut 9, the angle of inclination is minimized, and when a restrain stopper part 6 of a front leg 4 abuts on the back of the seating surface 1, the angle of inclination is made maximum. The inclination of the seating surface 1 can be switched toward the two angles by longitudinal movement while being seated, so that a fixed free zone is provided to make a change of pace and accelerate the circulation of blood. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

Detailed Description of the Invention

  In the present invention, the lower back is always movable even if the upper body is warped or the body is tilted forward by sitting on the shallow seat surface 1 inclined backward so that the hips do not shift forward. Because it is in pressure contact with the waistband 2, the back stretches unconsciously, and the effect of wearing a lumbar corset without pressing the abdomen is obtained. The burden on the lumbar region can be remarkably reduced, and the state is stable. In addition, it is possible to move back and forth while sitting down and move to both the lowest and highest gradients. During that time, it is configured with a certain free zone that promotes blood circulation and is good for mood change It relates to a chair for preventing and reducing back pain.

  In the past, there were many people who suffered from back pain when working in desk work for a long time and sitting in a chair. One of the reasons is that the role of the backrest in a conventional chair is to lean on temporarily when taking a break or thinking, and most people unconsciously move their upper body away from the backrest. The spine is distorted due to body wrinkles and fatigue, and the spine is cushioned and the spine is cushioned. In particular, the lumbar (lumbar) intervertebral disc is pushed backward for a long time, pressing the nerve without returning immediately And back pain was happening. Also, people who suffer from low-back pain due to occupational abuse of the lower back and age (including accidents) and poor recovery of the intervertebral disc, it is difficult to sit in a chair with desk work etc. because it is difficult to stay in the same posture Met. In addition, there were many people who used lumbar corsets among them, but many people refused to use it due to bad effects such as pressure on the abdomen, especially in the elderly, and reduced breathing and appetite. I was there.

  The present invention is related to desk work that sits on a chair for a long time, and most people work away from the back (upper back), so the posture is disturbed due to fatigue or body wrinkles, causing back pain. It was. In addition, people who are already suffering from back pain will be able to relieve pain, correct posture and prevent back pain by sitting in a chair.

The following structure has been researched and developed based on the back pain caused by my own accident, so that the chair of the present invention can be used to relieve back pain, correct posture, and prevent it. .
(A) The bearings 3c and 3a are provided on the rear end of the seat surface 1 provided with the bearing 3 on the back surface, and the support 9 having the suppression stopper portion 6b on the upper end is integrated.
(B) The return spring 10 for keeping the relative angle between the movable waist 2 provided with the bearing 2 a below the back surface and the seat surface 1 is united and attached to the front bearing 3 c of the column 9.
(C) The upper and lower legs 4 and 4a are provided with stoppers 6 and 6a for suppressing the shaft holes and the inclination, and the reinforcing bar 5 having the bearing 3b in the middle is provided on the inner sides of the front and rear legs. Integrate by hand.
(D) The front leg 4 is attached to the back bearing 3 of the seating surface 1 and the rear leg 4a is attached to the back bearing 3a of the support column 9, and the link 8 is connected to the bearing 3b facing both the reinforcing bars 5.
(E) The seat surface 1 can be shifted from the lowest slope to the highest slope while sitting, and the back pain prevention / relief chair is configured with a certain free zone in the meantime.

The present invention includes the following, using known techniques as appropriate as examples.
(B) Compact and foldable so that it can be easily carried and used for a wide range of outdoor and leisure purposes.
(B) The front and rear legs 4 and 4a are configured to be extendable and fixed so that the height and angle can be easily adjusted according to the height.
(C) The front and rear legs 4 and 4a are fixed.
(D) An elbow pad.
(E) A front leg with three legs.
(F) The restraining portion 6b of the movable waist 2 can be adjusted back and forth.
(G) Thrust washers around the fulcrum shaft 7 and rubbing locations are appropriately configured using known means for retaining, and a buffer material is interposed between the contact surfaces of the suppression stopper portions 6, 6a, 6b. The material of the chair of the present invention may be a combination of wood, resin, metal pipe, leather, cloth and the like. Further, the seat surface 1 and the movable waist 2 may be formed in a net shape by providing curved surfaces and cushions on the surfaces.

  When sitting on a shallow seat with a slanted back, the lumbar part unconsciously presses against the movable waistband 2, tightening the abdomen, and feeling secure as if the lumbar corset was tightly attached without pressing, The burden on the lower back is reduced, and the back is stretched without consciousness, making it possible to prevent and correct the back of the cat. As a result of experiments, it has been proved that when a person suffering from back pain sits on the chair of the present invention, it is easy to admire and relieve pain remarkably. In addition, I myself suffered from a traffic accident (ball butt collision), became severely injured in the lower back, got into a hernia state, and it was very difficult to stay in the same posture and I had suffered for more than 3 years, so I sat down. In the moment, the dull pain relieved, and the chair of the present invention made it possible to do desk work, etc.In addition, when it became close to the evening in the cold time, I suffered from dull pain that caused fat sweat and sideways, The pain that couldn't be avoided was halved, which was researched and developed based on actual experience.

It is a right view which shows the state which applied the suppression stopper part 6a of the rear leg 4a to the back surface of the support | pillar 9, and made it the minimum inclination of this invention. It is a right view which shows the state which applied the suppression stopper part 6 of the front leg 4 to the back surface of the seat surface 1, and was made into the maximum inclination of this invention. It is the right view which expanded the one part which showed an example which used the return spring 10 in order to keep the seat surface 1 and the movable waist 2 of this invention at an acute angle. In the present invention, the front and rear legs 4 and 4a and the link 8 are omitted, and a part of the movable waist rest 2 is shown in cross section, and the return spring 10 is used as an example for keeping the seat surface 1 and the movable waist rest 2 at an acute angle. It is a top view which shows a situation. It is a side view of this invention which shows the state which sat down with the lowest inclination. It is a front view of the present invention. The present invention is based on left-right symmetry.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat surface 2 Movable waist 2a Movable waist bearing 3, 3a, 3b, 3c Bearing 4 Front leg 4a Rear leg 5 Reinforcement bar 6, 6a, 6b Suppression stopper part 7 Support shaft 8 Link 9 Post 10 Restoring spring

Claims (1)

(A) A support 9 having bearings 3c and 3a on the front and back is provided on the rear end of the seat surface 1 provided with the bearing 3 on the back, and a restraining stopper 6b is integrated on the upper end.
(B) A return spring 10 for keeping the relative angle between the movable waist 2 provided with the bearing 2 a below the back surface and the seat surface 1 is combined and attached to the front bearing 3 c of the column 9.
(C) The upper and lower legs 4 and 4a are provided with stoppers 6 and 6a for suppressing the shaft hole and the inclination, and the reinforcing bar 5 provided with the bearing 3b toward the inside is handed to the left and right legs. To do.
(D) The front leg 4 is attached to the back bearing 3 of the seating surface 1 and the rear leg 4a is attached to the back bearing 3a of the support column 9, and the link 8 is connected to the bearing 3b facing both the reinforcing bars 5.
(E) The inclination of the seat surface 1 can be shifted to both sides from the lowest to the highest inclination while sitting, and in the meantime, it is a back pain prevention / relief chair configured with a certain free zone.

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