JP6271340B2 - Stretching chair - Google Patents

Description

  The present invention relates to a stretch chair, and more particularly to a stretch chair for extending the back of a person sitting on the stretch chair.

  Continuing with a troublesome posture when performing various tasks such as studying, computer operation, farming, etc., various problems may occur, such as curvature of the back of the spine and spine, pain due to a straight neck at the neck, and hernia . Such a problem is also said to be one of the factors that hinder health. Therefore, it is desirable to alleviate the above problems as much as possible.

  As one method for alleviating the above problems, for example, there is a method of extending the back muscles. Here, when using the method of extending the back muscles, it is important that the back muscles can be extended by an easy method on a daily basis. Therefore, various techniques for extending the back using a chair have been considered as one of the methods for extending the back that can be performed in an easy manner on a daily basis.

  As one of such techniques, for example, there is Patent Document 1. Patent Document 1 describes a chair having a tension belt used through a waist pad and a shoulder and a footrest. According to Patent Document 1, the shoulder is pulled backward by the tension belt by pushing the foot placed on the footrest. As a result, the back can be stretched while the chest is warped.

  Moreover, there exists patent document 2 as one of the related techniques, for example. Patent Document 2 describes a chair having a side clip portion. According to Patent Document 2, the spine can be extended by adjusting the height of the chair with the side clip portion held between the sides.

JP H11-313861 JP 2013-66680 A

  However, in the technique of the above-mentioned Patent Document 1, since the back is stretched by pulling the shoulder, the burden on the shoulder is large. Moreover, in the technique of patent document 2, since a weight is supported by a side part, the burden with respect to a side part is large. As described above, the techniques disclosed in Patent Documents 1 and 2 have a problem that a burden on a specific portion increases.

  As described above, there has been a problem that when a chair is used to extend the spine, an extreme burden may be applied to a specific location.

  Then, the objective of this invention is providing the chair which can extend a back, without applying the extreme burden to the specific location which is the subject mentioned above.

In order to achieve the above object, a stretch chair according to one aspect of the present invention includes a seat portion that is positioned at a predetermined height, and a backrest portion that supports the back of a person sitting on the seat portion with a backrest surface, The backrest portion is pivotally supported by the constituent members of the stretch chair at a predetermined position below the backrest portion so that the upper side of the backrest portion rotates in a direction away from the seat portion. The predetermined portion where the backrest portion is pivotally supported by the structural member of the stretch chair is located away from the backrest surface by a predetermined distance in the opposite direction to the seat portion side with respect to the backrest surface of the backrest portion.
The structure is taken.

  According to the above-described invention, the person sitting on the seat with the backrest part puts his weight on the back, so that the backrest part rotates.

  Here, in the above invention, the predetermined portion where the backrest portion is pivotally supported by the structural member of the chair is separated from the backrest surface by a predetermined distance in the direction opposite to the seat portion side with respect to the backrest surface of the backrest portion. positioned. That is, in the said invention, the center point at the time of a backrest part rotating is located back rather than the said backrest part. Therefore, when the backrest part is tilted back (when the upper side of the backrest part is turned away from the seat part), the backrest part turns around the back part. As a result, the distance from the seat part to the upper part of the backrest part when the backrest part is tilted by a predetermined angle is longer than the distance from the seat part before the rotation to the upper part of the backrest part.

  Therefore, for example, if a person sitting on the stretch chair while keeping the same position on the stretch chair of the present invention rotates the backrest, the distance to the upper portion of the backrest is increased. Will only be pulled up. In other words, a person sitting in a stretching chair keeps sitting in the same place on the stretching chair and turns the stretching chair so that it sits on the stretching chair without placing an extreme burden on a specific location. Can stretch the back of the person who is.

  Thus, the stretch chair of the present invention can pull the body of a sitting person upward (toward the head) only by rotating the backrest surface of the stretch chair. Further, the load at that time is distributed on the backrest surface of the backrest portion. Therefore, by using the above invention, it is possible to stretch the back without imposing an extreme burden on a specific location.

Further, the backrest portion is formed by bending the backrest portion in a direction in which the lower portion is further away from the seat portion than the portion where the backrest portion is pivotally supported by the constituent member of the stretch chair, and the backrest portion is bent. The formed bent portion is configured to come into contact with the constituent member of the stretch chair when the backrest portion is inclined by a predetermined angle.
The structure is taken.

  With the above configuration, when the backrest portion is tilted by a predetermined angle, the bent portion provided on the backrest portion comes into contact with the constituent member. Therefore, it is possible to prevent the backrest portion from being inclined more than a predetermined angle at which the bent portion abuts the component member. Thereby, it is possible to prevent the backrest portion from being inclined more than a predetermined angle (for example, an ideal angle for extending the back).

  Further, the stretch chair uses a member such as a gas spring for returning the backrest part to the original state, thereby releasing the force for tilting the backrest part (for example, leaning on the person), thereby It can be configured to automatically return from the state where the part is tilted to a predetermined angle to the original state (the state before the backrest part is tilted).

  With such a configuration, for example, by releasing the force for tilting the backrest part, such as raising the back from a state leaning on the backrest part, the backrest part automatically returns to the state before tilting. Become. Therefore, when using it next time, as with the previous time, for example, it becomes possible to rotate the backrest simply by leaning on the backrest before tilting, and the exercise for extending the back more easily is resumed. It will be possible.

Further, the stretch chair includes a fixing means for fixing at least a part of the body of the person sitting in a state where the back of the person sitting on the seat is in contact with the back surface of the backrest part.
The structure is taken.

  With such a configuration, when a person sitting on the stretching chair rotates the backrest, the back of the person sitting on the stretching chair is fixed to the backrest surface. Thereby, when the person sitting on the stretch chair rotates the backrest portion, the person can easily continue to be located at the same place on the stretch chair.

  As described above, by rotating the backrest part, the distance from the seat part to the upper part of the backrest part when the backrest part is tilted by a predetermined angle is from the seat part before the rotation to the upper part of the backrest part. Longer than the distance. Therefore, when a person sitting in a stretching chair can rotate the backrest, it can easily continue to be located at the same place on the stretching chair, so that the back can be easily extended. become. As a result, it is possible to stretch the back more easily without placing an extreme burden on the specific location.

  The fixing means may be a neck fixing means that is provided above the backrest and fixes a neck of a person sitting on the seat. Further, the neck fixing means can be configured to include a pair of arms that can be opened and closed and project from the backrest.

  According to the above invention, the upper part of the backrest part is provided with the neck fixing means including the arm part that sandwiches and fixes the neck part (neck part) of the person sitting on the stretch chair. Then, by sandwiching and fixing the neck portion of the person sitting on the stretch chair, the back of the person sitting on the stretch chair is fixed to the backrest surface. Thus, when the fixing means is configured to fix the neck portion, the back can be more efficiently extended when the backrest portion of the chair is rotated. In addition, it is thought that the position of the neck of the person sitting on the seat of the stretch chair varies depending on the sitting height of the person sitting. Therefore, the neck fixing means may be configured so that the height from the seat can be adjusted.

  The stretching chair includes a positioning guide that moves in the height direction and can be locked at a predetermined position on the backrest, and the positioning guide is used to push the acupuncture point at a predetermined position on the positioning guide. It can be configured to have a raised portion.

  As a result, when the back is stretched by rotating the backrest, the stretched back can be pressed by the ridges for pushing the acupuncture points. Thereby, a more effective back stretching exercise can be performed.

  According to the present invention configured as described above, it is possible to realize a chair that can extend its back without placing an extreme burden on a specific location.

It is a figure which shows an example of the outline | summary of the whole structure of the chair for a stretch which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the detailed structure of the chair for stretching shown in FIG. It is a figure for demonstrating the detailed structure of the chair for stretching shown in FIG. It is a figure for demonstrating the position of the hinge part of the chair for stretching shown in FIG. It is a figure for demonstrating the fluctuation | variation of the height of the backrest part of the chair for stretching shown in FIG. It is a figure for demonstrating an example of a mode when the backrest part of the chair for stretching shown in FIG. 1 is knocked down.

<Embodiment 1>
A stretch chair 1 according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram illustrating an example of an overview of the overall configuration of the stretch chair 1. 2 and 3 are perspective views showing an example of the configuration of the stretch chair 1. FIG. FIG. 4 is a diagram for explaining a position where the backrest portion is pivotally supported. FIG. 5 is a diagram illustrating an example of the operation of the backrest portion when the backrest portion is rotated. FIG. 6 is a diagram illustrating an example of a state when the backrest portion of the stretching chair 100 is rotated.

  In this embodiment, the upper side of the backrest part 3 of the stretch chair 1 is rotated in a direction away from the seat part 2 (the backrest part 3 is tilted), so that the back of the person sitting on the stretch chair 1 is A stretch chair 1 that can be extended efficiently will be described.

  As shown in FIG. 1, the stretching chair 1 according to the present embodiment is seated on a seat 2 that is a seated portion, a backrest 3 that is a portion on which a person sitting on the seat 2 leans, and a seat 2. And neck fixing means 4 for fixing the neck of the person sitting while the back of the person is in contact with the backrest surface of the backrest 3. The seat portion 2 has a quadrangular shape with rounded corners on four sides, and the backrest portion 3 is located on one side of the quadrangular shape. The backrest part 3 is inclined from one side of the seat part 2 in a direction perpendicular to the seat part 2 so as to support the back of the person sitting on the seat part 2 (having an inclination as a general backrest part). May be arranged). A neck fixing means 4 is connected to the upper part of the backrest 3. Here, as described above, the upper side of the backrest portion 3 is configured to be able to rotate in a direction away from the seat portion 2 (the backrest portion 3 is located on the seat portion 2 side of the backrest portion 3. It can be defeated as a fulcrum). And in this embodiment, it is comprised so that the fulcrum at the time of the backrest part 3 turning may be located in the opposite direction to the seat part 2 side with respect to the backrest surface of the backrest part 3 by predetermined distance. Yes. With such a configuration, the stretch chair 1 in the present embodiment fixes the neck portion of the person sitting on the seat portion 2 and leaning against the backrest surface of the backrest portion 3 with the neck fixing means 4 as will be described later. The back of the person sitting on the stretching chair 1 can be stretched by defeating the backrest 3.

  Specifically, as shown in FIGS. 2 and 3, the stretching chair 1 includes a seat portion 2 having a seat frame 21, a backrest portion 3 having a backrest frame 31, and a neck fixing means having a neck holder frame 41. 4. Further, the seat frame 21 constituting the seat portion 2 and the back frame 31 constituting the backrest portion 3 are connected via a hinge portion 61 (a constituent member of the stretch chair 1). The neck fixing means 4 is provided in the upper part of the backrest 3 (backrest frame 31) by fixing the backrest frame 31 and the neck holder frame 41 using the neck holder height adjusting knob 36. .

  The seat 2 has a seat frame 21 and a seat cushion 22.

  The seat frame 21 is a U-shaped iron pipe (which may be other general material such as aluminum), and the space between the two iron pipes is between two bent iron pipes. The connecting plate portion to be connected is formed at one place. A hinge portion 61 is installed at a predetermined position of the seat frame 21, and is connected to the backrest frame 31 of the backrest portion 3 through the hinge portion 61. A seat cushion 22 is installed on the upper portion of the seat frame 21. On the other hand, a leg pipe 51 that is in contact with the ground is joined to the lower portion of the seat frame 21. With such a configuration, the seat portion 2 having the seat frame 21 is positioned higher from the ground by the height of the leg pipe 51. The details of the predetermined portion where the hinge portion 61 is installed will be described later.

  The seat frame 21 is joined to the gas spring 71. Specifically, as shown in FIGS. 2 and 3, one side of the gas spring 71 is joined to the seat frame 21 at the central portion of the joining plate portion of the seat frame 21, and the other side is the backrest portion 3. The back frame 31 is joined. The stretch chair 1 has the gas spring 71, so that the backrest 3 can be automatically returned from the tilted state (the tilted state) to the original state (the state before being tilted).

  The seat cushion 22 has a quadrangular shape with rounded corners on four sides, and the length of one side of the seat cushion 22 is approximately 3/4 of the two pipe portions of the seat frame 21. It has a length. The seat cushion 22 is installed on the upper part of the two pipe sides of the seat frame 21 (the one that is not closed to the U-shape), and the person sitting on the stretch chair 1 is on the two pipe sides of the seat frame 21. It sits on the seat cushion 22 arrange | positioned above. In the present embodiment, the side of the seat cushion 22 located on the left side of FIG. 2 (the side opposite to the side where the backrest 3 having the backrest frame 31 is located) is “front”, and the right side of FIG. The side of the seat cushion 22 located at the side (the side where the backrest 3 having the backrest frame 31 is located) is defined as “rear”. In this case, the seat cushion 22 is disposed “front” of the seat frame 21.

  The backrest part 3 includes a backrest frame 31, a backboard 32, a roller positioning guide 33 (positioning guide), an acupressure roller 34 (raised portion), a backboard slide holder 35, and a neck holder height adjustment knob 36. ,have.

  The backrest frame 31 is a U-shaped iron pipe (may be another general material such as aluminum). The back frame 31 is joined to the hinge 61 at the bent (closed) portion of the U-shaped portion, and the neck fixing means 4 at the other (two pipe portions, open). Connected. Further, the backrest frame 31 in this embodiment is folded in a direction in which a lower part (a lower part on the closed side) than a part joined to the hinge part 61 is away from the seat part 2 when joined to the hinge part 61. It is bent and formed. In other words, the back frame 31 in the present embodiment is formed such that the lower part of the back frame 31 including the back frame 31 is bent “backward” than the part connected to the hinge part 61 before the backrest part 3 including the back frame 31 is tilted. (A bent portion is formed).

  Further, a back board 32 is installed on the back frame 31 (on the side of the seat 2 along the two pipes of the back frame 31). The backboard 32 has a quadrangular shape with rounded corners, and is fixed to the backrest frame 31 by being fixed by four backboard slide holders 35 from the “rear side”. Further, a plurality of through holes are provided in the central portion of the backboard 32 in a direction along the backrest frame 31 when the backboard 32 is fixed to the backrest frame 31. As will be described later, the roller positioning guide 33 is fixed by screwing a screw from the “rear side” of the backboard 32 into the through hole. That is, the through-hole provided on the backboard 32 is used when determining the approximate position of the roller positioning guide 33 (the rotor positioning guide 33 is the position of the through-hole provided on the backboard 32. Fixed according to the). In addition, by loosening the backboard slide holder 35, the fixing position on the backrest frame 31 of the backboard 32 to which the roller positioning guide 33 is fixed can be shifted. By adjusting the position of the backboard 32 in this way, the position of the roller positioning guide 33 can be finely adjusted.

  The roller positioning guide 33 has a substantially rectangular shape, and is fixed to a predetermined position (any one of the positions having the through holes) of the backboard 32. Further, a through hole is provided in the central portion of the roller positioning guide 33. The roller positioning guide 33 is fixed on the backboard 32 by screwing screws into the through holes provided in the roller positioning guide 33 and the through holes provided in the backboard 32 from the “rear side” of the backboard 32. It will be. On the roller positioning guide 33, two spherical or hemispherical acupoint pressing rollers 34 are provided so as to sandwich the through hole provided in the roller positioning guide 33 from the left and right. With this configuration, the height of the roller positioning guide 33 is changed according to the sitting height of the person sitting on the stretching chair 1, so that when the person sitting on the stretching chair 1 stretches his back, the acupoint pushing roller 34 The acupuncture point can be effectively pressed.

  Further, the neck fixing means 4 is connected to the upper part of the backrest frame 31 as described above. Specifically, the neck holder height adjusting knob 36 is tightened in a state where the two neck holder frames 41 are inserted into the two pipes from the opening portions of the two pipes of the back frame 31. Thus, the backrest frame 31 and the neck holder frame 41 are connected. After the neck holder height adjusting knob 36 is loosened to adjust the length of the neck holder frame 41 inserted into the backrest frame 31, the neck holder height adjusting knob 36 is tightened again, so that the neck fixing means 4 The position (height) can be adjusted.

  The neck fixing means 4 includes a neck holder frame 41, a neck holder center base 42, a neck holder handle right 43, a neck holder handle left 44, a center base cushion 45, a neck holder cushion 46, and an acupoint push cushion 47. And have.

  The neck holder frame 41 is an iron pipe (which may be another general material such as aluminum) connected to the back frame 31 as described above. The outer diameter of the iron pipe constituting the neck holder frame 41 is smaller than the inner diameter of the iron pipe constituting the backrest frame 31. As described above, one of the neck holder frames 41 is inserted into the back frame 31 and connected to the back frame 31 by tightening the neck holder height adjusting knob 36. The other of the neck holder frame 41 is joined to the neck holder center base 42.

  The neck holder center base 42 has a substantially trapezoidal shape with a thickness at the center, and is arranged so that the long side of the substantially trapezoidal shape is “front” (seat 2 side). . As described above, the neck holder center base 42 is joined to the neck holder frame 41 at the lower portion of the neck holder center base 42. The neck holder center base 42 is connected to a neck holder handle right 43 and a neck holder handle left 44 which are means for fixing the neck (neck portion) of a person sitting on the stretch chair 1 and leaning on the backrest 3. Has been. Further, the neck holder center base 42 has a center base cushion 45 near the center of the long side of the substantially trapezoidal shape (near the center of the side on the seat portion 2 side). As shown in FIG. 3, the neck holder handle right 43 and the neck holder handle left 44 are connected so as to extend in the “forward” direction from both ends of the long side portion of the substantially trapezoidal shape. The neck holder handle right 43 and the neck holder handle left 44 are connected to the neck holder center base 42 so as to be able to open and close.

  One of the neck holder handle right 43 and the neck holder handle left 44 is a straight pipe joined to the neck holder center base 42, and the other is protected by a sponge or the like. In addition, a point press cushion 47 is provided on the neck holder center base side of the neck holder handle right 43 and the neck holder handle left 44, and the neck holder cushion 46 is mounted so as to cover the point press cushion 47.

  Further, the neck holder handle right 43 and the neck holder handle left 44 are joined to the neck holder center base 42 so as to be able to open and close. With the neck holder handle right 43 and the neck holder handle left 44 opened, the neck holder is fixed by leaning against the backrest 3 and closing the neck holder handle right 43 and the neck holder handle left 44. In such a fixed state of the neck, the center base cushion 45 and the acupoint push cushion 47 hit the neck portion.

  The leg pipe 51 is a portion that hits the leg portion of the stretch chair 1. The leg pipe 51 is, for example, one iron pipe formed by bending (may be another general material such as aluminum), and as described above, at the lower portion of the seat frame 21 It is joined.

  The hinge part 61 (component) is a member that connects the seat frame 21 and the backrest frame 31. By connecting the seat frame 21 and the backrest frame 31 via the hinge portion 61, it is possible to rotate the upper side of the backrest frame 31 in a direction away from the seat portion 2 (tilt the backrest portion 3). .

  As described above, the hinge portion 61 is installed at a predetermined location of the seat frame 21. Specifically, referring to FIG. 4, the hinge portion 61 in the present embodiment is installed at a position “rear” with respect to the backrest surface which is the surface on which the backrest portion 3 (backboard 32) leans. . That is, the hinge part 61 in this embodiment is installed so that it may be located in the opposite direction to the seat part 2 side with respect to the backrest surface of the backrest part 3, and only a predetermined distance away from the backrest surface (for example, 5-10 cm, etc. (Other than that may be used). With such a configuration, the pivot point of the backrest portion 3 when the backrest portion 3 is tilted back is shifted rearward from the backrest surface of the backrest portion 3.

  Here, referring to FIG. 5, the backrest 3 (B) rotated about the point B is more seatable than the backrest 3 (A) rotated about the point A. It can be seen that the distance from 2 to the upper part of the backrest 3 is longer. Thus, by lowering the pivoting fulcrum to “rearward”, the distance from the seat portion 2 to the upper portion of the backrest portion 3 when the backrest portion 3 is rotated can be extended.

  On the other hand, the pivot point of the person who is leaning against the backrest surface of the backrest 3 is the waist. Therefore, as shown in FIG. 6, the hinge part 61 was tilted in the same manner by installing the hinge part 61 so as to be located a predetermined distance away from the seat back part 2 side with respect to the backrest surface of the backrest part 3. In this case, the difference between the distance from the seat 2 to the position of the head and the distance from the seat 2 to the upper portion of the backrest 3 becomes large. In this embodiment, the neck portion of the person sitting on the stretching chair 1 is fixed by the neck fixing means 4 (between the neck holder handle right 43 and the neck holder handle left 44) as described above. Has been. As a result, the person sitting on the stretching chair 1 tilts the backrest portion 3, so that the person sitting on the stretching chair 1 is pulled by the backrest portion 3 and pulled upward. As a result, it is possible to stretch the back without placing an extreme burden on the specific location.

  Moreover, the hinge part 61 in this embodiment is comprised so that the bending part of the backrest frame 31 mentioned above may contact | abut to the hinge part 61, when the backrest part 3 inclines only the predetermined angle. That is, a wall portion that prevents the backrest frame 31 from being inclined more than a predetermined angle is formed on the seat portion 2 side of the hinge portion 61. With such a configuration, when the backrest portion 3 is tilted by a predetermined angle, the bent portion of the backrest frame 31 comes into contact with the wall portion of the hinge portion 61. As a result, it is possible to prevent the backrest 3 from being inclined more than a predetermined angle.

  The gas spring 71 has a function of restoring the tilt of the backrest 3 in the tilted state (tilted state) to the original state. As described above, the gas spring 71 is joined to the seat frame 21 and the backrest frame 31. Further, the gas spring 71 is joined to the seat frame 21 and the back frame 31 so that the gas spring 71 is contracted by rotating (falling) the back portion 3. Therefore, for example, by releasing the force for rotating the backrest 3 by raising the body leaning on the backrest 3, the backrest 3 is brought back to its original state (fall down) according to the reaction force of the gas spring 71. It will return to the previous state. The gas spring 71 may be constituted by a spring that uses the restoring force of an elastic body such as metal.

  The above is the configuration of the stretch chair 1 in the first embodiment.

  As described above, the stretching chair 1 in the present embodiment includes the seat portion 2 having the seat frame 21 and the backrest portion 3 having the backrest frame 31. Further, the seat frame 21 and the backrest frame 31 are connected via a hinge portion 61, and the hinge portion 61 is installed at a position “rear” relative to the backrest surface on which the backrest portion 3 leans. ing. With such a configuration, when the backrest 3 of the stretch chair 1 is rotated, the distance from the seat 2 to the upper portion of the backrest 3 is the same when the person sitting on the stretch chair 1 is rotated by the same amount. It extends beyond the distance from the seat 2 to the head. As a result, by turning the backrest 3 while staying at the same position of the backrest 3, the back muscles can be extended without applying an extreme load to a specific location.

  In addition, a bent portion is formed on the back frame 31 of the stretch chair 1 in the present embodiment. The hinge portion 61 is formed with a wall portion that prevents the back frame 31 (folded portion thereof) from being inclined more than a predetermined angle. With such a configuration, when the backrest portion 3 is tilted by a predetermined angle, the bent portion comes into contact with the wall portion of the hinge portion 61. As a result, it is possible to prevent the backrest 3 from being inclined more than a predetermined angle, and it is possible to extend the spine more effectively.

  Further, the stretch chair 1 in the present embodiment has a neck fixing means 4 for fixing the neck of a person sitting on the stretch chair 1. With such a configuration, the neck of a person sitting on the stretching chair 1 is fixed to the stretching chair 1. As a result, the person sitting on the stretching chair 1 can easily stay at the same position of the backrest 3 even when the backrest 3 is rotated, and it is more easily The back can be stretched without applying a load.

  In addition, the stretch chair 1 according to the present embodiment includes the pressure point pressing roller 34. With such a configuration, it becomes possible to hold down the acupoints on the back while stretching the back muscles. As a result, the back can be stretched more effectively.

  In addition, in this embodiment, the case where the chair 1 for stretching was comprised based on the pipe chair was demonstrated. However, the stretch chair 1 can be implemented without being limited to a case where the stretch chair 1 is configured based on a pipe chair. The stretch chair 1 may be made of, for example, wood.

  In the present embodiment, the stretch chair 1 having the pressure point pressing roller 34, the center base cushion 45, and the pressure point pressing cushion 47 has been described. However, the implementation of the present invention is not limited to the case described in the present embodiment. The stretch chair 1 may not necessarily have a configuration for pushing the acupoint.

  In the present embodiment, the stretch chair 1 including the neck fixing means 4 is described as an example of the fixing means for fixing the back of the person sitting on the seat 2 in contact with the backrest surface of the backrest 3. However, the implementation of the present invention is not limited to the above case. The stretching chair 1 may include, for example, a shoulder fixing means for fixing a shoulder instead of the neck fixing means 4 or a seat belt as the fixing means. Further, the fixing means may not necessarily be provided.

<Appendix>
Part or all of the above-described embodiment can be described as in the following supplementary notes. Hereinafter, the outline of the stretch chair in the present invention will be described. However, the present invention is not limited to the following configuration.

(Appendix 1)
A seat located at a predetermined height, a backrest that supports the back of the person sitting on the seat with a backrest, and a back of the person sitting on the seat in contact with the backrest of the backrest And a neck fixing means for fixing the neck of the seated person, and a stretching chair comprising:
The backrest is pivotally supported by the stretch chair component at a predetermined position below the backrest so that the upper side of the backrest rotates in a direction away from the seat, and the backrest is stretched. The lower part is formed by bending in the direction away from the seat part than the part pivotally supported by the structural member of the chair,
The bent portion formed by bending of the backrest portion is configured to abut against the constituent member of the stretch chair when the backrest portion is inclined by a predetermined angle,
The neck fixing means includes a pair of arms that are provided above the backrest and project from the backrest so as to be openable and closable.
A positioning guide that moves in the height direction and can be locked at a predetermined position is provided on the backrest portion, and the positioning guide includes a raised portion for pressing the pot at a predetermined position on the positioning guide,
The predetermined portion where the backrest portion is pivotally supported by the structural member of the stretch chair is separated from the backrest surface by a predetermined distance in a direction opposite to the seat portion side with respect to the backrest surface of the backrest portion. To position,
Stretch chair.

According to this configuration, the stretch chair has the seat portion and the backrest portion. Moreover, the backrest part is pivotally supported by the structural member of the stretch chair at a predetermined position below the backrest part so that the upper side of the backrest part rotates in a direction away from the seat part. And
The predetermined portion where the backrest portion is pivotally supported by the constituent members of the stretch chair is configured to be separated from the backrest surface of the backrest portion by a predetermined distance in the direction opposite to the seat portion side. With such a configuration, when the backrest portion of the stretch chair is rotated, the distance from the seat portion to the upper portion of the backrest portion is the same when the person sitting on the stretch chair is rotated (the back is tilted). It is longer than the distance from the seat to the head. As a result, by rotating the backrest part while staying in the same position of the backrest part, the sitting person will be pulled up by the distance up to the upper part of the backrest part, The back can be stretched without applying a load.

  Moreover, according to this structure, the backrest part is formed by bending the lower part away from the seat part than the part where the backrest part is pivotally supported by the constituent member of the stretch chair. Further, the bent portion of the backrest portion that is formed by bending is configured to abut against the constituent members of the stretch chair when the backrest portion is inclined by a predetermined angle. With such a configuration, when the backrest portion is inclined by a predetermined angle, the bent portion comes into contact with the constituent members of the stretch chair. As a result, it is possible to prevent the backrest portion from being inclined more than a predetermined angle, and it is possible to extend the spine more effectively.

  In addition, according to this configuration, the stretch chair includes the fixing means for fixing the back of the person sitting on the seat while being in contact with the backrest surface of the backrest. With such a configuration, it is possible to fix the back of the person sitting on the seat while being in contact with the backrest surface of the backrest. As a result, a person sitting in a stretching chair can easily stay in the same position of the backrest part even when the backrest part is rotated, and more easily places an extreme load on a specific part. You can stretch your back without any problems.

  Moreover, according to this structure, the stretch chair is provided with the neck fixing means as the fixing means. With such a configuration, by fixing the neck, it is possible to fix the back of the person sitting on the seat while being in contact with the backrest surface of the backrest. As a result, when the backrest portion is rotated, it is pulled from the neck portion, and the back can be stretched more effectively.

  Moreover, according to this structure, the stretch chair is provided with the positioning guide and the protruding portion for pressing the pot. With such a configuration, it is possible to stimulate the acupoints on the back when the backrest is rotated to stretch the back. As a result, the back can be stretched more effectively.

  Although the present invention has been described with reference to the above embodiment, the present invention is not limited to the above-described embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Stretching chair 2 Seat part 21 Seat frame 22 Seat cushion 3 Backrest part 31 Backrest frame 32 Backboard 33 Roller positioning guide 34 Acupoint push roller 35 Backboard slide holder 36 Neck holder height adjustment knob 4 Neck fixing means 41 Neck holder Frame 42 Neck holder center base 43 Neck holder handle right 44 Neck holder handle left 45 Center base cushion 46 Neck holder cushion 47 Acupoint push cushion 51 Leg pipe 61 Hinge part 71 Gas spring

Claims (1)

A seat located at a predetermined height, a backrest that supports the back of the person sitting on the seat with a backrest, and a back of the person sitting on the seat in contact with the backrest of the backrest And a neck fixing means for fixing the neck of the seated person, and a stretching chair comprising:
The backrest is pivotally supported by the stretch chair component at a predetermined position below the backrest so that the upper side of the backrest rotates in a direction away from the seat, and the backrest is stretched. The lower part is formed by bending in the direction away from the seat part than the part pivotally supported by the structural member of the chair,
The bent portion formed by bending of the backrest portion is configured to abut against the constituent member of the stretch chair when the backrest portion is inclined by a predetermined angle,
The neck fixing means includes a pair of arms that are provided above the backrest and project from the backrest so as to be openable and closable.
A positioning guide that moves in the height direction and can be locked at a predetermined position is provided on the backrest portion, and the positioning guide includes a raised portion for pressing the pot at a predetermined position on the positioning guide,
The predetermined portion where the backrest portion is pivotally supported by the structural member of the stretch chair is separated from the backrest surface by a predetermined distance in a direction opposite to the seat portion side with respect to the backrest surface of the backrest portion. To position,
Stretch chair.

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