JP3003482U - Health chair - Google Patents

Abstract

(57) [Summary] [Purpose] In a healthy sitting chair that has the function of bending backward and extending the back, it is possible to easily return to the original posture without requiring the force of the abdominal muscles. A health seat chair 1 in which a seat frame 5 and a backrest frame 6 pivotally attached to each other are mounted on a base frame 7, and a front side portion of the seat frame 5 is pivoted to a front end of the base frame 7. While supporting, the lower portion of the backrest frame 6 is pivotally attached to the rear end of the seat frame 5, and a portion above the pivotal attachment portion of the backrest frame 6 and a position rearward of the pivotal attachment portion of the base frame 7 are connected together. , 16, which is rotatably connected so that the lower part of the body can be prevented from being displaced forward when the back stretching exercise is performed so that the lower back portion becomes a fixed point.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a well-being chair in which the back can be extended by bending the upper body backward while sitting.

[0002]

[Prior art]

 Such a health seat chair pivotally connects a seat frame on which the lower half of the body is placed and a back frame on which the upper half of the body is leaned, to the seat frame and the back frame when the back frame is bent backward. Is pivoted and fixed on the base frame so that it has a lateral history "F" shape.

However, as disclosed in Japanese Utility Model Publication No. 2-38778, this pivoting and fixing method is based on the point that the lower part of the backrest frame is pivotally attached to the rear end of the base frame. Is. Therefore, when the backrest frame is bent backward, the seat frame naturally tilts while moving forward.

Therefore, when the human body on the seat chair extends its back, the lower half of the body shifts forward, and in order to return to the original state, the body should move backward, at least by shifting the position, and the center of gravity of the waist should be adjusted. You have to move up and use your abs to get up. So to speak, the lower half of the body is moved forward to extend the back. It is still good to just extend the back, but if I try to do this repeatedly, I have to correct my posture each time, and smooth continuous movement was impossible.

[0005]

[Problems to be solved by the device]

 Therefore, this invention makes it possible to easily perform repeated back stretching exercises by changing the fulcrum when pivotally fixing the seat frame and the backrest frame to the base frame, and at the same time performing the exercises during the back stretching exercises. The challenge is to provide a healthy sitting chair that can also improve the effect.

[0006]

[Means for Solving the Problems]

 The means for solving the above-mentioned problems will be described with reference to the drawings of the embodiments. The structure is such that a seat frame and a backrest frame pivotally attached to each other are mounted on a base frame so that the backrest frame largely warps rearward. In the health seat, the front side of the seat frame is pivotally supported on the front side of the base frame, and the lower part of the backrest frame is pivotally attached to the rear side of the seat frame. It is a health seat chair in which a portion of the hanging frame above the pivot portion and a portion of the base frame rearward of the pivot portion are rotatably connected by a connecting rod.

[0007] In order to increase the exercise effect when stretching the back, a massage roller is pivotally supported at a portion corresponding to the back of the backrest frame, and the massage roller in the cover covering the front side of the backrest frame. A window exposing the massage roller may be formed from the corresponding portion to a portion slightly higher than this.

Further, in order to allow the user to select the use of the massage roller according to his / her preference, the massage roller is protruded / retracted in a front / back direction of a backrest frame in a pivot portion for pivotally supporting the massage roller. A retracting mechanism may be provided.

[0009]

[Action]

 That is, according to the configuration described above, when the back stretching exercise is performed, the upper body may be extended and bent backward. When the back frame is tilted backward, the seat frame tilts with its front side as a fulcrum. When returning to the original position, the posture in which the upper body is extended backward is stopped, that is, the upper body is weakened. Easy to get back with weight.

Further, when the massage roller is pivotally supported on the backrest frame, as the backrest frame falls backward, between the upper body of the human body placed with the waist as a fixed point and the massage roller. A relative movement difference occurs in the longitudinal direction, and the movement difference causes the massage roller to massage the back in the vertical direction while rotating.

Further, in the case where the protrusion / withdrawal adjusting mechanism is provided in the pivotal support portion of the massage roller, if the massage roller is not needed, it may be sunk into the back side of the backrest frame, If it hits too hard, move it to the back side of the backrest frame.

[0012]

[Effect of device]

 As a result of the above, according to the present invention, the lower half of the body does not shift forward as in the conventional case when the back stretching exercise is performed, so that it is possible to easily return to the original posture. For this reason, it is possible to perform a purely back stretching exercise, and it is convenient not only when the back is temporarily stretched but also when it is repeatedly performed.

Further, in the health-care chair according to the second aspect, since the massage roller massages the back while rotating the back in the vertical direction, the exercise effect of the back stretching exercise can be improved.

Further, in the wellness chair according to the third aspect, it is possible to select whether or not to use the massage roller and to adjust the protruding amount (contact pressure to the back), so that the chair can be used according to preference.

[0015]

【Example】

 An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 2 is a perspective view showing the health-care chair 1, and as shown in this figure, the health-chair chair 1 extends the back by bending the upper half of the body backward while sitting.

This health chair 1 is configured by covering the structure 2 shown in FIG. 3 with the covers 3, 4, and 4. First, the structure 2 will be described. A seat frame 5 on which the lower half of the human body is placed, a backrest frame 6 pivotally attached to the rear side of the human body to lean on the upper half of the human body, and the seat frame 5 and the backrest frame 6 are attached. The base frame 7 and the base 8 that rotatably supports the base frame 7 are configured.

Each of the above-mentioned members 5, 6, 7, and 8 is formed of a metal pipe, and the above-mentioned seat frame 5 is formed in a U-shape in a plan view having a width necessary to put the lower half of the body on the upper surface. A large seat plate 9 is appropriately mounted on and fixed to. Further, the backrest frame 6 pivotally attached to the rear side of the seat frame 5 is formed in a U-shape in plan view having a height necessary for leaning the upper half of the body.

The connection between the two is performed by a connecting rod 10 which is stretched over the rear side of the seat frame 5. That is, both ends of the connecting rod 10 are inserted through the lower end of the backrest frame 6 which is sandwiched inside the seat frame 5.

The above-described base frame 7 is configured by connecting two support pipes 11 and 11 each having a rear end bent upward with two connecting pipes 12 and 13. The two connecting pipes 12 and 13 are arranged below the support pipes 11 and 11 in parallel in the front-rear direction, and T-shaped armrests 14 and 14 are attached to both ends 12 of the front connecting pipe. There is.

The mounting of the seat frame 5 and the backrest frame 6 to the base frame 7 is performed at the front and rear ends of the support pipes 11, 11. At the front ends of the support pipes 11 and 11, a pair of support plates 15 and 15 having a predetermined height are erected, and the front side portion of the seat frame 5 is pivotally mounted between the support plates 15 and 15. There is.

One end of a connecting rod 16, 16 having a substantially U-shape in plan view is pivotally attached to the rear ends of the support pipes 11, 11, and the other end is pivotally attached to a portion of the backrest frame 6 above the pivot portion. I'm wearing it.

That is, as shown in FIG. 1, when used as an ordinary seat chair, the seat frame 5 and the backrest frame 6, which are substantially L-shaped in side history on the base frame 7, When the backrest frame 6 is tilted backward by extending the upper half of the body and bending it backward, the front side of the seat frame 5 is used as a fulcrum and the rear side is raised while itself raising the pivot point between the connecting rods 16 and 16 and the base frame 7. It rotates around the center, and becomes a side history “F” shape.

In the figure, 17 and 17 are cylindrical bodies for stably contacting the rear end of the seat frame 5 with the base frame 7.

Further, as shown in FIG. 3, a rod-shaped locking pin 18 is fixed to the rear end of one side of the base frame 5. This is for using this health seat chair 1 as a reclining type seat chair, and to lock the backrest frame 6 by locking the locking grooves 19a and 19b of the stopper 19 fixed to the connecting rod 10 described above. Fix at the desired angle.

This stopper 19 is provided with a bar-shaped operation lever 19c that is appropriately bent, and when it is not necessary, that is, when the back stretching motion is performed, this operation is performed on a synthetic resin fastening member 20 fixed to the lower portion of the backrest frame 6. The lever 19c can be retained.

In addition, a massage roller 21 is pivotally supported on the back-corresponding portion of the backrest frame 6 in order to increase the effect of exercise when stretching the back.

Since the massage roller 21 is formed by molding a soft synthetic resin into a substantially dumpling shape, a pivot hole (not shown) is formed at the center. When pivoting the backrest frame 6, the massaging roller 21 is inserted into the middle portion of a pivot shaft (not shown) extending laterally between the backrest frames 6, and the massage roller 21 is inserted. Rings 22 are arranged on both sides of the pipes, and pipes 23, 23 are inserted on both sides of the rings.

To rotatably mount the above-mentioned base frame 7 to the above-mentioned base 8, as shown in FIG. 1, a rotary plate mounted on the lower surface of the connecting pipes 12 and 13 of the base frame 7. 24 and a substrate 25 that rotatably supports the rotating plate 24 and is fixed on the base 8. In the figure, 26 is a bolt and 27 is a washer, and a nut (not shown) is screwed from below to rotatably mount the rotary plate 24 on the substrate 25.

The aforementioned covers 3, 4, 4 include a main body cover 3 that covers the surfaces of the seat frame 5 and the backrest frame 6, and armrest covers 4, 4 that cover the armrests. These covers 3, 4 and 4 are formed by coating a sponge or the like with an appropriate cloth.

The main body cover 3 is formed by integrally forming a backrest portion 3a, a seat portion 3b, and a hem portion 3c so as to be bendable between each other, and a cloth (not shown) is formed on an upper portion of the back surface of the backrest portion 3a. ) Is sewn into a bag having a lower end opening, and the bag-shaped portion is inserted into the backrest frame 6 from above so that the bag can be attached to the structure 2.

A mounting band (not shown) is mounted between the backrest 3a and the seat 3b of the body cover 3, and the mounting band is wound around the lower portion of the backrest frame 6 to cover the cover. Prevents misalignment during installation.

A window 3d for exposing the massage roller 21 is formed from a portion corresponding to the massage roller of the backrest portion 3a to a portion slightly above the portion. The armrest covers 4 and 4 are formed in a bag shape having an opening at the middle portion of the lower end surface.

In the health-care chair 1 having the above-described structure, when performing the back stretching exercise, the upper half of the body may be extended and bent backward. The back frame 6 is tilted rearward, and the seat frame 5 inclines with its front side as a fulcrum. To return to the original position, stop the posture of extending the upper body backward, that is, weaken the upper body. Easy to get back with weight.

In this way, since it is possible to easily return to the original posture after performing the back stretching exercise, it is possible to perform a pure back stretching exercise without the need for abdominal muscles and to temporarily extend the back. Not only is it convenient to do this iteratively.

Further, since the massage roller 21 is pivotally supported on the backrest frame 6, as the backrest frame 6 falls backward, between the upper body of the human body placed with the waist as a fixed point and the massaging roller 21. , A relative movement difference occurs in the length direction, and the massage roller 21 rotates and massages the back in the up-down direction due to the movement difference. Therefore, the exercise effect of the back stretching exercise can be improved.

Note that, for example, a retracting / adjusting mechanism 31 as shown in FIG. 4 may be used to allow the retracting / retracting adjustment of the massage roller 21 according to need and preference.

The retracting / adjusting mechanism 31 includes a pivot shaft 32 that rotatably pivots the massage roller 21, and a support shaft 33 that is located parallel to the pivot shaft 32 and that interlocks with the pivot shaft 32. And a pair of a first horizontal frame piece 34, 34 and a second horizontal frame piece 35, 35 for horizontally mounting the pivot shaft 32 and the support shaft 33 on the back side of the backrest frame 6, respectively. ing.

The above-mentioned massage roller 21 is located in the middle of the pivot shaft 32, and one ends of the connecting rods 36, 36 are inserted into both sides of this. The other ends of the connecting rods 36, 36 are fitted into the support shaft 33 so that they are aligned in parallel and interlock with each other as described above.

The above-mentioned first horizontal piece 34, 34 holds the pivot shaft 32 at a projecting position where the massage roller 21 acts on the back and a retracted position where the massage roller 21 does not act when the back stretching motion is performed. An adjustment groove 37 having a substantially "U" shape in a side view is formed by connecting the two pivot support recesses 37a and 37b.

It should be noted that, as shown in the drawing, it is preferable to form projections 37c, 37c for narrowing the groove width a little at the entrances of the pivot shaft holding recesses 37a, 37b. Further, three or more pivot support recesses 37a, 37b may be formed so that the contact pressure of the massage roller 21 on the back can be changed.

Further, a long groove 38 which is long along the length direction of the backrest frame 6 is formed in each of the second horizontal members 35, 35 so that the pivot shaft 32 can be moved within the adjustment groove 37. It is possible. In addition, 39 in the figure is for preventing the above-mentioned connecting rods 36, 36 from being laterally displaced, and may be constituted by, for example, an E ring.

That is, in the retracting / adjusting mechanism 31, the retracting / adjusting of the massage roller 21 is performed by holding the massage roller 21 by hand and moving both ends of the pivot shaft 32 in the adjusting groove 37 to hold the massage roller 21 in a desired position. It may be held in the recesses 37a and 37b. In this way, it is possible to select whether or not to use the massage roller 21, so that the massage roller 21 can be comfortably used according to preference.

[Brief description of drawings]

FIG. 1 is a side view showing the action of a health seat chair.

FIG. 2 is a perspective view of a health chair.

FIG. 3 is a perspective view showing a main part of a health seat chair.

FIG. 4 is a perspective view showing a retracting / adjusting mechanism.

[Explanation of symbols]

 1 ... Health seat 2 ... Structure 5 ... Seat frame 6 ... Back frame 7 ... Base frame 16 ... Connecting rod 21 ... Massage roller 31 ... Adjustment mechanism 32 ... Pivot shaft 33 ... Support shaft 34 ... First horizontal Frame piece 35 ... Second horizontal frame piece 37 ... Adjustment groove 37a, 37b ... Pivot support holding recess 38 ... Long groove

Claims (4)

[Scope of utility model registration request] 1. A health seat chair in which a seat frame and a backrest frame pivotally attached to each other are mounted on a base frame so that the backrest frame warps largely backward, and a front side portion of the seat frame is a base. While being pivotally supported on the front side of the frame, the lower part of the backrest frame is pivotally attached to the rear side of the seat frame, above the pivotal attachment part of the backrest frame and from the pivotal attachment part of the base frame. A healthy sitting chair that connects the rear part with the connecting rod so that it can rotate. 2. A massage roller is pivotally supported on the back-corresponding portion of the backrest frame, and the massage is applied from a portion corresponding to the massage-roller portion to a portion slightly above the massage roller in a cover covering the front side of the backrest frame. The wellness chair according to claim 1, wherein a window exposing the roller for use is formed. 3. A health seat chair according to claim 2, wherein a pivot support portion pivotally supporting said massage roller is provided with a retracting / adjusting mechanism for retracting / retracting said massage roller in the front and back directions of the backrest frame. 4. The retracting / adjusting mechanism is provided with a pivot shaft that rotatably pivots a massage roller, and a support shaft that is interlocked with the pivot shaft in parallel with the pivot shaft. And a support shaft are respectively horizontally mounted on a pair of first horizontal piece and second horizontal piece provided on the back side of the back frame, and the first horizontal piece includes a massage roller The adjustment groove formed by connecting a plurality of pivot shaft holding recesses for adjusting a protruding / retracting state is formed, and a long groove is formed in the second horizontal piece.
Healthy sitting chair as described.