JP5032295B2 - Massage chair - Google Patents

Description

  The present invention relates to a massage chair in which a massage mechanism is incorporated in a backrest portion.

A massage chair that incorporates a massage mechanism in the backrest part is intended to eliminate stiffness in the shoulders and back by applying the massager's treatment element to the acupuncture points and meridians on the back and causing them to perform prescribed actions. For example, as shown in Patent Document 1, it has been conventionally proposed. Moreover, recent massage chairs have a kneading ball connected to the distal end of the treatment element by a rotation shaft in the width direction, and the treatment element in which the vertical direction, the width (left and right) direction and the front and rear direction of the backrest part are combined. By performing a three-dimensional treatment operation, an advanced treatment operation can be performed.
JP 2000-279474 A

  By the way, such a massage chair is covered with a cover so that a mechanism part such as a treatment element does not directly touch the user's body at the backrest part, and a cloth is used for this cover. However, every time it is used, the treatment element (rice ball) and the cover are brought into sliding contact with each other, and massage is performed, so that the treatment operation of the treatment element causes friction between the rice ball and the cover.

  In this case, in the three-dimensional treatment operation of the treatment element, the kneading balls rotate when operating in the vertical direction, so the friction between the kneading balls and the cover is small, but the kneading balls do not rotate when operating in the width direction. A large friction is generated between the fir ball and the cover. Therefore, especially when the kneading balls act in the width direction, the kneading balls do not rotate but simply come into sliding contact, and the friction generated between the kneading balls and the cover is large, resulting in uneven wear in the same direction. There was a problem.

  Further, for example, when a cover is formed by stacking a plurality of cover members, friction similar to the friction generated between the kneading balls and the cover member also occurs between the cover members, so that wear in the width direction is biased. There was a problem that it would occur.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a massage chair that can suitably improve the durability of the cover of the backrest portion in which the massage mechanism having a treatment element is incorporated. It is to provide.

In order to solve the above-mentioned problems, the invention according to claim 1 is a drive for driving a treatment element having a kneading ball connected by a rotation shaft in the width direction in a three-dimensional direction in the vertical direction, the width direction, and the front-rear direction. The mechanism is a massage chair that is protected by a cover and is provided in a backrest part, and massages a user who is seated by moving the treatment element in a three-dimensional manner by the drive mechanism, and the cover includes a plurality of sheets. The cover member is configured to be overlapped, and at least a portion of each cover member on which the kneading balls of the treatment element act does not rotate, the frictional resistance in the axial direction of the rotating shaft rotates the kneading balls , The gist of the invention is that it is smaller than the frictional resistance in the vertical direction perpendicular to the axial direction of the rotating shaft .

In the present invention, the cover in which a plurality of cover members are stacked has a frictional resistance in the axial direction of the rotating shaft that does not rotate at the portion where the kneading balls of at least the treatment element of each cover member act. The frictional resistance in the vertical direction perpendicular to the axial direction of the rotating shaft rotates . Here, in the treatment operation of the treatment element, since the kneading balls rotate when operating in the vertical direction perpendicular to the axial direction of the rotating shaft , the friction between the kneading balls and the cover is small, but the axial operation of the rotating shaft Sometimes the fir ball is simply slid without rotating. Corresponding to this, the frictional resistance in the axial direction of the rotating shaft , in which the kneading balls do not rotate, is reduced, so that the durability of the cover of the backrest portion can be suitably improved.

Further, in this invention, even between cover member, since the same friction friction and generated between the kneading balls and the cover member occurs, does not rotate the massaging balls, the frictional resistance in the axial direction of the rotary shaft is reduced Thereby, durability of each cover member can be improved suitably.

  ADVANTAGE OF THE INVENTION According to this invention, the massage chair which can improve suitably the durability of the cover of the backrest part in which the massage mechanism which has a treatment element was incorporated can be provided.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, the leg portion 11 of the massage chair 10 is placed on a floor surface (not shown), and a seat portion 12 on which a user can sit is fixed to the upper portion of the leg portion 11. A backrest 13 for tilting the user's back is provided at the rear of the seat 12 so as to tilt. Armrests 14 for placing the user's arms are provided on both sides of the seat 12. An ottoman 15 that performs massage by placing a user's foot on the front lower portion of the seat 12 is tiltably provided.

  As shown in FIG. 2, the backrest 13 includes a backboard 17 having a rectangular opening 16 made of a hard resin material and having a front surface opened long in the vertical direction, and a back mounted on the back side of the backboard 17. A cover 18, a substantially rectangular mechanism frame 19 which is accommodated between the backboard 17 and the back cover 18 and is attached to a predetermined portion, and a cover 20 which is attached so as to cover the front surface of the backboard 17. It consists of

  A guide rail 19 a is formed on the inner surface of the mechanism part frame 19 in the longitudinal direction (vertical direction). A massage mechanism 40 as a drive mechanism is incorporated in the guide rail 19a. The massage mechanism 40 is moved up and down by a drive motor (not shown) assembled to the massage mechanism 40. The massage mechanism 40 is provided with a pair of treatment elements 41 each having a kneading ball 41a connected by a rotation shaft in the width direction, and the pair of treatment elements is provided by the drive motor or a separately provided drive motor. 41 drives in the width (left-right) direction and the front-back direction. In this way, in addition to the vertical movement of the massage mechanism 40, the movement in the width direction and the front-rear direction of the treatment element 41 is combined, so that a three-dimensional treatment operation by the treatment element 41 is performed.

  As shown in FIGS. 2 and 3, the cover portion 20 is provided so as to be continuous on both sides and the upper side of the opening portion 16 of the backboard 17 and receives a back load of the user substantially. Inside the back receiving part 20a, it is comprised by the range of the said opening part 16, ie, the rectangular treatment element coating | coated part 20b corresponding to the movement range of the treatment element 41 (rice ball 41a).

  The back receiving portion 20a is configured by wrapping the cushion 30 with two cover members 31 and 32 made of fabric, and configured to receive the load on the back of the user with the cushion 30. The cover members 31, 32 are stitched to the synthetic resin fixing plate 35 at the outer ends in the width direction, and the pins 36 are inserted into the plurality of mounting holes 37 of the backboard 17 from the plurality of holes 35 a formed in the fixing plate 35. By mounting toward the back, the cover 20 is fixed to the backboard 17 so as to cover the front surface of the backboard 17 other than the opening 16.

  The treatment element covering portion 20b is provided so as to close the opening 16 of the backboard 17 inside the back receiving portion 20a, and is configured by overlapping two inner cover members 33 and outer cover members 34 made of cloth. Yes. The cover members 33, 34 are sewn together with a connection member 38 having a J-shaped cross section at the boundary between the back receiving portion 20 a and the cover members 31, 32, and the connection member 38 is latched to the opening 16 of the backboard 17. It has been.

  As shown in FIG. 4, the inner cover member 33 and the outer cover member 34 of this embodiment have a frictional resistance in the width direction that is higher than the frictional resistance in the vertical direction in accordance with the rotational direction of the kneading balls 41 a of the treatment element 41. The size is small (in the figure, the difference in the magnitude of friction generated by the difference in the size of the white arrow is shown).

  In the massage chair 10 having such a configuration, based on the driving of the massage mechanism 40 in the backrest 13, three-dimensional treatment with a treatment element 41 (rice balls 41 a) such as squeezing, rubbing, and hitting the back of the user. Operation is performed.

  The three-dimensional treatment operation of the treatment element 41 is transmitted to the user through the cover members 33 and 34 of the cover portion 20, and the fir tree of the treatment element 41 is accompanied by the treatment operation of the treatment element 41. Friction is generated between 41 a and the inner cover member 33. In this case, in the three-dimensional treatment operation of the treatment element 41, the kneading balls 41a rotate when operating in the vertical direction, so the friction between the kneading balls 41a and the inner cover member 33 is small, but the kneading balls 41a are operated when operating in the width direction. The ball 41a is simply in sliding contact without rotating. In the present embodiment, corresponding to this, the inner cover member 33 has the durability of the inner cover member 33 suitably improved by reducing the frictional resistance in the width direction in which the kneading balls 41a do not rotate. .

  Moreover, in this embodiment, since it is set as the structure which laminated | stacked two sheets of the inner side cover member 33 and the outer side cover member 34, between this cover member 33 and 34, it arises between the fir tree 41a and the inner side cover member 33. Although the same friction as the friction is generated, both the cover members 33 and 34 have durability against not only the inner cover member 33 but also the outer cover member 34 by reducing the frictional resistance in the width direction in which the kneading balls 41a do not rotate. Is suitably improved.

Next, characteristic effects of the present embodiment will be described.
(1) The inner cover member 33 on which at least the kneading balls 41a of the treatment element 41 of the cover portion 20 acts has a smaller frictional resistance in the width direction where the kneading balls 41a do not rotate than the friction resistance in the upper and lower directions where the kneading balls 41a rotate. Is done. Here, in the treatment operation of the treatment element 41, since the kneading balls 41a rotate when operating in the vertical direction, the friction between the kneading balls 41a and the inner cover member 33 is small, but the kneading balls 41a are operated when operating in the width direction. It will simply slidably contact without rotating. Correspondingly, the durability of the inner cover member 33 of the backrest portion 13 can be suitably improved by reducing the frictional resistance in the width direction in which the kneading balls 41a do not rotate.

  (2) The inner cover member 33 and the outer cover member 34 are overlapped, and the frictional resistance in the width direction where the kneading balls 41a do not rotate is made smaller than the friction resistance in the vertical direction where the kneading balls 41a rotate. . That is, since friction similar to the friction generated between the kneading balls 41a and the inner cover member 33 is generated between the cover members 33 and 34, the friction resistance in the width direction in which the kneading balls 41a do not rotate is reduced. The durability of each cover member 33, 34 can be preferably improved.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the treatment element covering portion 20b, which is the portion on which the kneading balls 41a of the treatment element 41 act, is composed of two sheets of the inner cover member 33 and the outer cover member 34. One piece may be sufficient.

  -In above-mentioned embodiment, although the treatment element coating | coated part 20b was comprised with the cover members 33 and 34 from which friction resistance differs in an up-down direction and the width direction, the range which uses this cover member is not restricted to this, For example, the cover part 20 May be used throughout.

It is a perspective view of the massage chair in this embodiment. It is a disassembled perspective view of a backrest part. It is AA sectional drawing of FIG. 1 for demonstrating the structure of a backrest part. It is explanatory drawing for demonstrating the structure of a cover member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Massage chair, 13 ... Backrest part, 20 ... Cover part (cover), 31 ... Cover member (cover), 32 ... Cover member (cover), 33 ... Inner cover member (cover), 34 ... Outer cover member (cover) ), 40 ... massage mechanism (drive mechanism), 41 ... treatment element, 41a ... fir ball.

Claims (1)

A driving mechanism for driving a treatment element having a kneading ball connected by a rotation shaft in the width direction in the three-dimensional direction of the vertical direction, the width direction, and the front-rear direction is provided in the backrest part, protected by a cover, A massage chair for performing massage on a user seated by three-dimensionally moving the treatment element according to
The cover is formed by stacking a plurality of cover members, and at least a portion of each cover member on which the kneading balls of the treatment element act is such that the kneading balls do not rotate. A massage chair characterized in that it is smaller than the frictional resistance in the vertical direction perpendicular to the axial direction of the rotating shaft, on which the kneading balls rotate.

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