JP2007029557A - Massage machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massage machine where various kinds of massages are obtained and an interval between right and left treatment elements is adjusted reliably. <P>SOLUTION: The machine comprises: a drive shaft 20 driven in the state of being rotatable forward and backward; a pair of inclined shafts 22 provided with shafts inclined with respect to the drive shaft 20 and mounted to the drive shaft; a pair of treatment element units 5 connected to the outer peripheral surface of the respective inclined shafts 22 having the treatment elements 50 in a freely rotatable state; a switch means for switching a shaft surrounding position with respect to the drive shaft of one of the pair of inclined shafts; and a width adjusting means which makes it possible to freely adjust the interval between the treatment elements between the pair of treatment element unit by stopping the rotation of the drive shaft at an optional position. The switch means makes the inclined shafts freely rotatable within nearly 180° with respect to the drive shaft and switches the shaft surrounding position with respect to the drive shaft by switching the rotating direction of the drive shaft. The width adjusting means rotates the drive shaft at least once in the case of adjusting a width by rotating the drive shaft. A freely rotatable range between the drive shaft and the inclined shafts has no effect on the adjustment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a massage machine capable of giving a massage to a treatment element, and more particularly to a massage machine which obtains a massage by swinging a treatment element left and right using a rotationally driven tilt shaft. is there.

  There is a massage machine that can obtain massage by swinging the treatment element to the left and right using a rotationally driven tilt axis, but with a pair of left and right tilt axes whose tilt directions are reversed, The pair of left and right treatment elements move in the same direction by allowing the treatment elements not only to move toward and away from each other but also to switch the inclination directions of the two inclined axes to the same direction. Japanese Patent Application Laid-Open No. H10-228707 discloses a movement that can be obtained.

  By the way, in the thing which changes the right-and-left direction position of the treatment element of a treatment element unit using the above-mentioned inclination axis, if the rotation of the drive shaft is stopped at an arbitrary position, the treatment element interval between the right and left treatment element units can be changed. it can. If this point is utilized, when the driving element that provides other movement, for example, vertical movement, is provided to the treatment element unit when the drive shaft is in the non-rotating state, the distance between the left and right treatment elements can be adjusted. .

However, a problem arises when the tilt direction of the tilt axis is switched as follows. That is, one of the inclined shafts arranged on the left and right is freely rotatable within about 180 ° with respect to the drive shaft, and the rotation position of the drive shaft is switched to switch the position of the tilt shaft around the drive shaft. Therefore, when changing the tilt direction of the tilt axis, the left and right treatment element spacing adjustments may overlap the free range of one tilt axis, and at this time, the treatment element interval is not fixed. become.
JP 2003-38591 A

  This invention is invented in view of said conventional problem, Comprising: It aims at providing the massage machine which can perform right and left treatment element space | interval adjustment reliably while obtaining various massages. Is.

  In order to solve the above-mentioned problem, a massage machine according to the invention of claim 1 is provided with a drive shaft that is driven to rotate forward and backward, and a pair of tilts that are mounted on the drive shaft and that are tilted with respect to the drive shaft. A pair of treatment element units each having a shaft, a treatment element, and one end rotatably connected to the outer peripheral surface of each inclination axis, and one of the pair of inclination axes with respect to the drive axis Switching means for switching the position around the axis, and width adjusting means for adjusting the treatment element interval between the pair of treatment element units by stopping the rotation of the drive shaft at an arbitrary position. In contrast, the tilt axis is freely rotatable within approximately 180 °, and the rotational position of the drive shaft is switched to switch the position of the tilt shaft about the axis relative to the drive shaft. The width adjusting means rotates the drive shaft. Drive shaft during width adjustment Is characterized in that the one which more than one revolution.

  It is possible to cause the treatment element unit to perform different movements by switching by the switching means, and of course, when adjusting the treatment element interval by the width adjusting means, the drive shaft is rotated between the drive shaft and the tilt shaft in order to make one or more rotations. The free-rolling range is not affected.

  The massage machine according to the invention of claim 2 includes a drive shaft that is driven to rotate forward and backward, a pair of inclined shafts that are provided on the drive shaft and are inclined with respect to the drive shaft, and a treatment element. A pair of treatment element units that are arranged and are rotatably connected at one end to the outer peripheral surface of each tilt shaft, and a switch that switches the position of one of the tilt shafts around the drive shaft with respect to the drive shaft And a drive means for giving another motion to the treatment element unit when the drive shaft is in a non-rotating state, and the switching means makes the inclined shaft freely rotatable within about 180 ° with respect to the drive shaft. At the same time, the rotational position of the drive shaft is switched to change the position around the axis of the inclined shaft relative to the drive shaft, and the drive means drives the treatment element unit after rotating the drive shaft in a certain rotational direction. It has a feature in being .

  Of course, it is possible to cause the treatment element unit to perform different movements by switching by the switching means, and in order to rotate the drive shaft in a certain rotation direction when the treatment element is driven by the drive means, the drive shaft is also used in this case. The free-moving range between the tilt axis and the tilt axis is not affected. In addition, although the drive shaft is turned, this is an operation that can provide a massage, so that the user does not feel uncomfortable.

  The rotation of the drive shaft by the width adjusting means or the drive means is preferably performed at the maximum speed.

  According to the first aspect of the present invention, it is possible to cause the treatment element unit to perform different movements by switching by the switching means, and when adjusting the treatment element interval by the width adjusting means, the drive shaft is rotated once or more. Thus, the free-moving range for the switching between the drive shaft and the tilt shaft is not affected, and therefore the interval can be adjusted reliably.

  The invention of claim 2 also allows the treatment element unit to perform different movements by switching by the switching means. In addition, the treatment element is driven by the drive means while the drive shaft is in a non-rotating state. In order to perform the rotation of the drive shaft in a certain rotation direction when giving the movement to the treatment element, there is also a free range for the switching between the drive shaft and the tilt shaft in this case as well. Without affecting, other reliable movements can be obtained.

  Hereinafter, the present invention will be described based on an embodiment shown in the accompanying drawings. The illustrated massage mechanism is arranged so as to be capable of self-propelling vertically in a chair back, and vertical frames 11 and 11 positioned on the left and right, A frame drive motor unit 2 (see FIG. 2) and a frame 1 constituted by a guide shaft 13 connecting the upper ends of the vertical frames 11 and 11 and a pair of mounting plates 14 and 14 arranged in the middle of the left and right. The upper and lower drive motor unit 3, the hitting drive motor unit 4, and a pair of left and right treatment element blocks 5, 5 are mounted. In the figure, reference numerals 71, 73, and 75 denote slit plates for detecting the operating position, and reference numerals 72, 74, and 76 denote photosensors for detecting the operating position.

  The traveling shaft 30 installed between the lower ends of the vertical frames 11 and 11 has pinions 31 fixed to both ends thereof, and guide rollers 32 and 33 are rotatably mounted thereon. Guide rollers 32 are provided at both ends. These guide rollers 32 roll in guide rails arranged on the left and right sides of the backrest, and the pinion 31 meshes with a rack attached to the guide rails. For this reason, when the vertical drive motor unit 3 rotationally drives the travel shaft 30 provided with the pinion 31, the massage mechanism 1 self-travels up and down in the backrest along the guide rail.

  The rotation of the kneading drive motor unit 2 is transmitted to the drive shaft 20 disposed below the mounting plates 14 and 14. As shown in FIG. 7, the drive shaft 20 is provided with eccentric shaft portions 21 and 21 at both ends thereof, and inclined shafts 22 and 22 are arranged on the outer periphery of each eccentric shaft portion 21. One inclined shaft 22 is attached so as to rotate integrally with the drive shaft 20 by a through pin 23 that penetrates the eccentric shaft portion 21, but the other inclined shaft 22 is a stopper pin fixed to the eccentric shaft portion 21. Rotates together with the drive shaft 20 by engagement with 24. However, since the engaging portion of the inclined shaft 22 with the stopper pin 24 has a notch extending over almost a half circumference, when the drive shaft 20 reverses its rotational direction, it rotates freely with respect to the drive shaft 20 by approximately 180 °. It will be.

  And the treatment element blocks 5 and 5 shown in FIG. 6 are connected with the two inclination shafts 22 and 22 which have the axis | shaft inclined with respect to the drive shaft 20, respectively. The treatment element block 5 includes a swing arm 51 whose one end is rotatably connected to the outer periphery of the inclined shaft 22 via a bearing 54, and a support arm whose central portion is pivotally supported on the other end of the swing arm 51. 52 and roller-shaped treatment elements 50 and 50 that are pivotally supported at both ends of the support arm 52 having a square shape on the side surface. The support arm 52 has an upper treatment element 50 on the front side of the backrest. In a state of being urged by a spring in a protruding direction, the swing arm 51 is attached to a swing arm 51 so as to be rotatable up and down.

  A hitting drive shaft 40 that is driven by a hitting drive motor unit 4 via a belt 43 is installed on the top of the mounting plates 14 and 14. The hitting drive shaft 40 is formed as a crankshaft having eccentric shaft portions at both ends, and a connecting rod 45 is provided between each eccentric shaft portion and the swing arm 51 of each of the treatment element blocks 5. It is connected. The connecting rod 45 and the swing arm 51 are connected by a joint 46 that can freely move in three dimensions, and the rotation of the drive shaft 40 about the axis between the connection rod 45 and the drive shaft 40 is performed. The connecting rod 45 is connected so that it can freely swing in the axial direction of the drive shaft 40.

  As described above, the massage mechanism 1 self-propels up and down in the backrest by driving the vertical drive motor unit 3 to change the position of the treatment element 50 up and down. At this time, since the support arm 52 including the upper and lower two treatment elements 50 and 50 is connected to the swing arm 51 so as to be pivotable up and down and is spring-biased, the two upper and lower treatment elements 50 are provided. , 50 can always be in contact with the back of the human body held by the backrest.

  Further, when the kneading drive motor unit 2 is rotated in one direction, as shown in FIG. 7, the inclined shafts 22 and 22 respectively disposed on the eccentric shaft portions 21 and 21 at both ends of the drive shaft 20 are inclined with respect to the axis. Since the oscillating arms 51 are attached to the outer circumferences of the inclined shafts 22 and 22 and the movement of the oscillating arms 51 is restricted by the connecting rods 45 and 45, the left and right treatment elements As shown in FIG. 8, the units 5 and 5 cause the upper and lower treatment elements 50 and 50 to move toward and away from each other. At this time, the eccentric shaft portion to which the inclined shaft 22 is attached. Because of the 21 eccentric components, the treatment element 50 moves back and forth as shown in FIG. Accordingly, when a person is leaning on the back of the chair, these treatment elements 50 and 50 perform a massage on the back of the human body.

  When the rotation direction of the kneading drive motor unit 2 is reversed, at the initial stage of rotation, the other inclined shaft 22 rotates integrally with the drive shaft 20 in relation to the stopper pin 24 as described above. As shown in FIG. 9 by changing the phase by 180 ° with respect to the shaft 22, the inclinations of the two inclined shafts 22 and 22 are in the same direction. For this reason, the left and right treatment element units 5 and 5 are shown in FIG. As shown, the treatment elements 50 and 50 are moved in the same direction. When such a movement is performed by the therapeutic element 50, the back surface of the person held by the back of the chair can obtain a massage feeling that is alternately swung left and right.

  Here, in this massage mechanism, the support arm 52 is not directly connected to the inclined shaft 22 for swinging the support arm 52 provided with the treatment elements 50, 50 left and right but via the swing arm 51. Therefore, both when the movement shown in FIG. 8 is performed and when the movement shown in FIG. 10 is performed, the two upper and lower treatment elements 50 and 50 included in the support arm 52 are slightly out of phase in the lateral movement. Nevertheless, it moves in the same direction.

  In particular, when the left and right treatment element units 5 and 5 are tilted in the same direction, the four treatment elements 50 move in substantially the same direction when switched to the state shown in FIGS. The human body in which the child 50 is in contact with the back surface is greatly shaken from side to side, and therefore a high massage feeling can be obtained.

  Further, since the eccentric component for causing the treatment element 50 to move back and forth is provided in the eccentric shaft portion 21 of the drive shaft 20, both the state shown in FIG. 7 and the state shown in FIG. Thus, the distance from the drive shaft 20 to the treatment element 50 in the treatment element units 5 and 5 does not change, so that appropriate massage can be always performed on the human body.

  Further, when the hitting drive shaft 40 is rotated by the hitting drive motor unit 4, the connecting rod 45 swings the swing arm 51 up and down, so that the treatment element 50 performs a continuous vertical movement, Give the human body a tapping massage.

  As apparent from the movement shown in FIG. 8, the distance between the left and right treatment elements 50, 50 varies depending on the rotational position of the drive shaft 20. For this reason, the treatment element is not rotated. If the drive shaft 20 can be stopped at an arbitrary rotational position, such as when performing the above-described hitting massage machine for driving the unit 5, the interval between the treatment elements 50, 50 can be set according to the user's physique and preferences. It can be adjusted according to your needs.

  For this reason, here, the drive shaft 20 is stopped at an arbitrary rotational position by using the rotational position detection of the drive shaft 20 by the slit plate 71 and the photo sensor 72 (see FIG. 4), and the left and right treatment elements are used. The 50, 50 interval can be adjusted to an arbitrary value. At the time of this width adjustment, a control circuit (not shown) for controlling the drive units 2, 4, 5 is as follows. The drive shaft 20 is stopped at an arbitrary rotational position after being rotated one or more times.

  When switching between the state shown in FIG. 7 and the state shown in FIG. 9, the tilted shaft 22 is free to rotate around the drive shaft 20 only by a half turn. There is a risk of displacement. When the drive shaft 20 is driven after the switching is completed, the treatment element 50 may hit the human body and be loaded, so that the above-described deviation can be eliminated and the original movement can be obtained, but the drive shaft 20 is not rotated. The above-described deviation becomes a problem during the hitting massage performed in the state where the hitting massage is performed, or when the treatment elements 50 and 50 for the hitting massage are adjusted, and the inclined shaft 22 is substantially half-turned with respect to the drive shaft 20. In the first place, it becomes a problem to be free to swing between the two.

  However, since the drive shaft 20 is rotated one or more times at the time of width adjustment as described above, and at this time, the treatment element 50 protrudes greatly forward and the load from the human body is maximized. For this reason, the tilt shaft 22 is set at a position around the original axis with respect to the drive shaft 20, and the range in which the tilt shaft 22 can freely rotate does not affect the adjustment, and the width adjustment. Is surely made.

  In addition, when switching from the mash massage state shown in FIG. 8 to the bang massage, the drive shaft 20 can be stopped at an arbitrary position to shift to the bang massage with the width adjusted, as shown in FIG. When switching from the swing massage state to the tap massage, the control circuit switches the drive shaft 20 in the opposite direction, that is, after switching to the state shown in FIG. Yes. In the state shown in FIG. 10, the interval between the treatment elements 50 and 50 remains constant. Therefore, when the state directly shifts to the hitting massage, the interval between the treatment elements 50 and 50 is switched to a state suitable for the hitting massage. The gap between the treatment elements 50 and 50 may be shifted due to the fact that the treatment cannot be performed and the load and the range of free rotation over the half circumference of the inclined shaft 20 may be avoided.

  In addition, when the treatment element 50 performs an operation of pointing the back of the human body by moving the massage mechanism up and down, the massage is once performed similarly.

  Further, the control circuit is configured to rotate the drive shaft 20 at the maximum speed at the time of adjusting the interval between the treatment elements 50 and 50 or switching the massage (at the time of adjusting the accompanying interval). For this reason, it is possible to change the positional relationship in the rotational direction between the inclined shaft 22 and the drive shaft 20 which can freely rotate only half a circle more reliably.

It is a perspective view of the massage mechanism in an example of an embodiment of the invention. It is a top view same as the above. It is a front view same as the above. It is a side view same as the above. It is a rear view same as the above. It is a perspective view of a treatment element unit same as the above and a connecting rod. FIG. 2 shows a drive shaft and an inclination axis as above, wherein (a) is a left side view, (b) is a front view, and (c) is a right side view. It is operation | movement explanatory drawing same as the above. The other states of the drive shaft and the tilt shaft are shown, wherein (a) is a left side view, (b) is a front view, and (c) is a right side view. It is operation | movement explanatory drawing same as the above. It is explanatory drawing which shows the motion by an eccentric component.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Comb drive motor unit 3 Vertical drive motor unit 4 Strike drive motor unit 5 Treatment element unit 20 Drive shaft 21 Eccentric shaft part 22 Inclination axis 50 Treatment element

Claims (3)

  A drive shaft that is driven to rotate forward and backward, a pair of tilt shafts that are mounted on the drive shaft with shafts inclined with respect to the drive shaft, a treatment element is disposed, and one end is an outer periphery of each tilt shaft A pair of treatment element units that are freely connected to the surface, switching means for switching the position of one of the inclined shafts with respect to the driving shaft, and rotation of the driving shaft at an arbitrary position. And a width adjusting means for adjusting a treatment element interval between the pair of treatment element units by being stopped, and the switching means makes the tilt axis freely swingable within about 180 ° with respect to the drive axis and is driven. Switching the rotation direction of the shaft switches the position of the inclined shaft around the drive shaft, and the width adjusting means makes the drive shaft turn one or more times when the width is adjusted by rotating the drive shaft. And massage machine.   A drive shaft that is driven to rotate forward and backward, a pair of tilt shafts that are mounted on the drive shaft with shafts inclined with respect to the drive shaft, a treatment element is disposed, and one end is an outer periphery of each tilt shaft A pair of treatment element units that are freely connected to the surface, switching means for switching the position of one of the inclined shafts around the drive shaft relative to the drive shaft, and when the drive shaft is in a non-rotating state Drive means for providing other movement to the treatment element unit, and the switching means allows the tilt shaft to freely rotate within about 180 ° relative to the drive shaft, and the tilt shaft can be switched by switching the rotation direction of the drive shaft. A massaging machine for switching a position around an axis relative to a drive shaft, wherein the drive means drives the treatment element unit after rotating the drive shaft in a certain rotation direction.   The massage machine according to claim 1 or 2, wherein the rotation of the drive shaft by the width adjusting means or the drive means is performed at a maximum speed.

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