JPH0360499B2 - - Google Patents

Description

[Detailed description of the invention] 【Technical field】

The present invention relates to a pine massage machine in which a treatment element is provided on an arm protruding from an outer ring that is freely rotatable with respect to at least an eccentric or inclined inner ring.

[Background technology]

A pine massage machine is known from US Pat. No. 3,633,571, in which a pair of ring-like treatment elements are attached to a rotationally driven main shaft at a distance. The above-mentioned treatment element, which is attached eccentrically and inclined with respect to the main shaft, performs a pine surge operation by rotation of the main shaft. However, with a treatment element having such a shape, the amount of protrusion of the treatment element from the main shaft is determined only by the outer diameter and eccentricity of the treatment element, and when the outer diameter is increased, the outer surface of the treatment element becomes larger. As the curvature becomes smaller and the contact area with the body becomes larger, there is a problem in that it is not possible to obtain the so-called point pine surge that presses the ``pressure points'', and even if the amount of eccentricity is increased, this is due to the outer diameter. The same is true because of the restrictions. Therefore, if you try to perform pine surgery on the sides of the neck or shoulders with a treatment element whose outer diameter is set to a point pine surge, the main axis will hit the back of the neck, making it impossible to obtain sufficient pine surge. It was hot. Here, in Utility Model Publication No. 55-30488,
The outer ring is attached to the inner ring which is attached eccentrically and inclined to the main shaft so that it can rotate freely, and the middle of the arm whose base end is supported by a universal joint is connected to the outer ring, and the tip of this arm is connected to the outer ring. A device equipped with a treatment element has been disclosed. In this pine surge machine, in which the range of free rotation of the outer ring relative to the inner ring is regulated via an arm and a universal joint, when the main shaft is rotationally driven, the pine surge motion that the outer ring gives to the user in the conventional example is The treatment element at the end of the arm performs almost the same action as the arm, and since there is no particular restriction on the length of the arm, the configuration is such that it can satisfy both point pine surge and shoulder pine surge. ing. Moreover, in the one shown here, the base end of the arm is connected to the rocking plate that is driven to rock through a universal joint, so when the rocking plate is rocked, it hits the treatment element. It can perform actions similar to a pine surge, making it an extremely excellent pine surge machine. However, what is shown in the above publication,
In order to achieve the tapping pine surge, both ends of the rocking plate, whose central part is pivotally supported, are connected to each arm via a universal joint, so in order to ensure the stroke of the tapping pine surge. The dimension from the pivot point of the rocking plate to the connection point with the universal joint must be long, which means that long rocking plates, arms, etc. must be used, and the parts become larger. In addition, since space must be provided to secure these operating strokes, it is unavoidable to increase the size, and there are also restrictions on the position where the rocking plate can be installed, resulting in a complex structure. It is closed. In addition, in the device disclosed in the above publication, the inner and outer rings are slidable relative to the main shaft so that the spacing between the pair of treatment elements can be adjusted. In order to achieve this, it is necessary to use a long universal joint that connects both ends to the arm and rocking plate so that they can rotate freely in three dimensions. This is also a factor in the increase in size, and at the same time, it is no longer possible to adjust the interval between the pair of treatment elements over a wide range.

[Purpose of the invention]

The present invention has been made in view of these points, and its purpose is to make the drive mechanism compact so that it can also perform tapping pine surgery using a treatment element that can perform point pine surgery. To provide a pine surgery machine which can be configured to have a wide range of width adjustment from the nape of the neck to the shoulders, and can also widen the adjustment range of spacing between treatment elements by moving the main shaft in the axial direction. .

[Disclosure of the invention]

Accordingly, the present invention provides an inner ring that is attached to the main shaft at least eccentrically or inclined, an outer ring that is rotatably attached to the outer periphery of the inner ring, and an eccentric member that eccentrically rotates about an axis parallel to the main shaft. It consists of a connecting link with one end rotatably attached to the eccentric member, an arm attached to the outer ring and connected with the other end of the connecting link, and a treatment element attached to the arm. Each link is slidable in the axial direction of the main shaft, and a connecting arm that is parallel to the main shaft and is threaded onto a rotationally driven screw shaft is connected to the inner ring so as to freely rotate. are doing. According to the present invention, the striking pine surge caused by driving the arm can be obtained by rotating the eccentric member around an axis parallel to the main axis by using an eccentric member and a connecting link, and moreover, The rotation allows the treatment element to move the main axis in the axial direction without any other restrictions. The present invention will be described in detail below based on illustrated embodiments. This pine surge machine is built into the backrest of a chair or into the bed, and in the illustrated example, as shown in FIG. 8, it is built into the backrest of a chair which can be reclined freely. This chair is provided with a seat part 82 and an armrest 83 on a lower frame 81 made of pipes, a lower part of a frame 85 of a backrest 84 is pivotally connected to the lower frame 81, and a gas spring is installed between the lower end of the frame 85 and the lower frame 81. 86 is attached so that the backrest 84 can be reclined by expanding and contracting the gas spring 86 by operating a lever 87 provided on the side of the armrest 83.The frames 85 on both sides of the backrest 84 each have an opening surface with a U-shaped cross section. A pair of rails 90, 90 facing each other are fixed. Further, a headrest 88 is provided at the upper end of the backrest 84, and a headrest 88 is provided at the front of the backrest 84.
Support bands 89 are disposed vertically on both sides of the back side of the cover sheet that extends up to . Racks 91, 91 are fixed to the opening edges of the pair of rails 90, 90, respectively, along the longitudinal direction.
A pin surge machine is installed, which is equipped with rollers 18 rolling therein and a pinion 17 meshing with a rack 91. As shown in Fig. 1, the massaging machine has a motor block 20 at one end and a reducer block 1 at the other end.
9, the rollers 18 and the pinion 17 which are rotationally driven are provided protruding from both blocks 20, 19, and the main shaft 1 is provided between both blocks 20, 19.
A screw shaft 14 and an auxiliary shaft 13 are installed.
The auxiliary shaft 13, which is supported at both ends by both blocks 20 and 19, has a pair of rotary plates 15 and 1, which are rotatable with respect to the auxiliary shaft 13.
5, the main shaft 1, screw shaft 14, and auxiliary shaft 1
A rotating shaft 12 parallel to 3 is attached so that the rotating shaft 12 can freely rotate around the auxiliary shaft 13. Note that the rotating shaft 12, whose both ends are supported by a pair of rotating plates 15, 15, is rotatable with respect to the rotating plate 15. The motor housed in the motor block 20 not only rotates the main shaft 1, screw shaft 14, rotating shaft 12, and pinion 17, but also drives the rotating shaft 12 around the auxiliary shaft 13. That is, a driven shaft 31 disposed on the outer surface of the reducer block 19 is connected to a pulley 28 attached to the output shaft of the motor protruding below the motor block 20 via a belt 29 and a pulley 30. , and the driven shaft 31 and the reduction mechanism section in the reduction gear block 19,
Clutch 33, pulleys 34, 36 and belt 3
It is connected with 5. The reduction mechanism section (not shown) in the reduction gear block 19 is composed of a reduction gear and a plurality of clutch sections, and when the clutch 33 is connected, the main shaft 1, the screw shaft 14, or the pinion 17 selectively transmits motor output to.
Also, the driven shaft 31 includes a clutch 32 and a pulley 3.
7. A worm wheel 41 mounted on the auxiliary shaft 13 is connected via a belt 38, a pulley 39, and a worm 40.
A gear 42 integrated with the rotating shaft 12 meshes with a gear 43 fixed to the rotating shaft 12. When the clutch 32 is connected, the motor output is transmitted to the rotary shaft 12 through the above-mentioned members, and the rotary shaft 12 rotates about the shaft. Furthermore, a pulley 2 is provided on the outer surface of the motor block 20.
1, 23, a belt 22, and a clutch 24, a feed screw 25 is connected to the motor, and a feed nut 26 is screwed onto the feed screw 25.
and one of the pair of rotary plates 15, 15 are connected by an elastic link 16 consisting of a guide shaft and a compression coil spring. When the feed screw 25 rotates with the motor output, the feed screw 25
The feed nut 26 moving in the axial direction of the link 1
6, and as a result, the rotating shaft 12 supported by the rotating plate 15
performs rotation around the auxiliary axis 13. Now, a pair of inner rings 2, 2 are attached to the main shaft 1 at intervals. Both inner rings 2, 2 are the main shaft 1
They are eccentric by the same amount in the same direction and inclined in opposite directions to each other, and are designed to rotate together with the main shaft 1 by engaging with the protrusion 11 formed on the main shaft 1. It is designed to be able to slide freely in the axial direction, and outer rings 3 and 3 are provided on the outer peripheral surface, respectively.
is attached so that it can rotate freely. Also, each inner ring 2, 2
One end of each connecting arm 6, 6 is freely rotatably connected to the outer circumferential surface of the non-eccentric portion. This connecting arm 6, which is adapted to slide in the axial direction of the main shaft 1 together with the inner ring 2, is threadedly engaged with the screw shaft 14 and has the auxiliary shaft 13 passing through it. A pair of connecting arms 6, 6, which are respectively screwed into portions having opposite screw directions, move the pair of inner rings 2, 2 toward or away from each other as the screw shaft 14 rotates. The middle portions of the arms 4, 4 are fixed to the outer rings 3, 3, respectively. A roller-shaped treatment element 5 that can freely rotate with respect to the arm 4 is attached to the bent portion at the tip of each arm 4, and the other end of each arm 4 is connected to a connecting link 8 and an eccentric member 7. are respectively connected to the rotating shaft 12 via. By engaging with the rotating shaft 12 formed as a spline shaft, it rotates together with the rotating shaft 12 and
As is clear from FIG. 2, the eccentric member 7, which is slidable in the axial direction of the rotating shaft 12, is formed as a sphere attached eccentrically to the rotating shaft 12, and the connecting link 8 is attached to one end of the eccentric member 7. By engaging the eccentric member 7 so as to surround it, three-dimensional rotation is possible with respect to the eccentric member 7, and the connecting portion between the other end of the connecting link 8 and the arm 4 is also formed into a ball. It is formed as a joint 44 and similarly allows free three-dimensional rotation. Further, each eccentric member 7 and the penetrating portion of the auxiliary shaft 13 in each connecting arm 6 are connected to each other by connecting plates 9, 9, which are freely rotatable. Next, the operation will be explained. When the main shaft 1 is rotated by a motor, the inner ring 2 that rotates together with the main shaft 1 is eccentric and inclined with respect to the main shaft 1. 3 through the arm 4, the movement of the arm 4 is restricted by the connecting link 8, and as the main shaft 1 rotates, the treatment element 5 moves as shown in FIGS. A movement is performed to draw a three-dimensional locus l shown in FIG. Furthermore, Figure 4 shows the treatment child 5.
It shows the locus l when viewed from the front. A pair of treatment elements 5, 5 that perform such movements symmetrically,
Gives a so-called "nerimomi" pine surge to the user's back. In addition, ball joint 4 is attached to arm 4.
4, the connecting link 8 is swung vertically and horizontally as the inner ring 2 rotates, but the connecting link 8 and the rotating shaft 12 are eccentric members as spheres forming a ball joint 7, the operation of the treatment element 5 is performed smoothly. By rotating the feed screw 25 by the motor, the rotating shaft 12 is rotated around the auxiliary shaft 13 via the link 16 and the rotating plate 15, as shown in FIG.
When the arm 4 and the outer ring 3 rotate around the inner ring 2, the arm 4 and the outer ring 3 rotate around the inner ring 2, and the treatment element 5
Since this changes the amount of protrusion toward the front where the user's back is located, when rotating the main shaft 1 to obtain pine surge, the treatment element 5 is moved to the fifth position.
When the robot is in the position shown by the solid line in the figure, a strong pine surge is performed, and when it is in the position shown by the chain line, a weak pine surge is performed. This allows you to adjust the strength. When the rotating shaft 12 is rotated instead of the main shaft 1, the eccentric member 7 rotates together with the rotating shaft 12, so in this case, as shown in FIG.
The connecting link 8, which is moved as the eccentric member 7 rotates around the rotating shaft 12, moves the arm 4 connected by the ball joint 44, and the movement of the arm 4 at this time is between the inner ring 2, which is stopped. Since the movement rotates around the outer ring 3 together with the outer ring 3, the treatment element 4 at the tip of the arm 4, depending on the position of the inner ring 2, makes a linear reciprocating motion in an approximately vertical direction when viewed from the front, causing a tapping pine surge. I will do it. In addition, in this tapping pine surge, as shown in FIG. 1, both eccentric members 7, 7 are attached to the rotating shaft 12 so that the eccentric directions of the pair of eccentric members 7, 7 are opposite to each other. Therefore, the tapping motion by the paired treatment elements 5, 5 is
Similar to Utataki Pine Surge performed by humans, it is performed alternately on the left and right sides. Of course, the movement shown in FIG. 6 occurs when no load is applied to the treatment element 5, that is, when the treatment element 5 does not come into contact with the user, and the treatment element 5 descends and touches the user's shoulder. When this occurs, as shown in FIG. 7, due to the load applied by the user, the rotation shaft 12 is
A load is applied to the rotating shaft 12 and the rotating plate 15
It rotates around the auxiliary shaft 13 while compressing the elastic link 16 via. During the tapping pine surge, the force applied from above by the treatment element 5 to the user's shoulder is softened and prevented from becoming too strong due to the presence of the elastically expandable link 16. It is. Incidentally, the strength adjustment by rotating the feed screw 25 can also be obtained during this pounding pine surge. When the pinion 17 is rotated by the motor, this massage machine moves the backrest 84 of the chair up and down along the rail 90 due to the engagement between the rack 91 and the pinion 17. Therefore, the position of the treatment element 5 can be changed up and down. Moreover, at this time, a rolling massage can be obtained in which the treatment element 5 moves while rubbing the back of the human body. When the screw shaft 14 is further rotated, the treatment element 5 moves in the axial direction of the main shaft 1, as shown by the chain line in FIG. The axial position of the treatment element 5 can be changed depending on whether the target area is the shoulder or the neck. In addition, when adjusting this width,
Since the connecting plate 9 connects the eccentric member 7 and the connecting arm 6, it moves smoothly along the eccentric member 7 and the rotating shaft 12 as the connecting arm 6 and the inner ring 2 move. You can make wide adjustments. Furthermore, since the eccentric member 7 also moves together with the inner ring 2, the positional relationship between the inner ring 2 and the eccentric member 7 is constant regardless of the width adjustment. The movement of the treatment element 5 provided in the treatment element 5 is also constant regardless of the width adjustment, and the pine surge operation does not differ depending on the width adjustment. Furthermore, there is no restriction on the axial movement of the main shaft 1 of the treatment element 5. is simply screw shaft 1
Since the length is only 4, the width adjustment range can be widened. Other embodiments are shown in FIG. 9 and below. Since the basic points are the same as those in the above embodiment, only the different points will be explained. First, the eccentric member 7 is connected to the rotating shaft 1.
2 itself. That is, the rotating shaft 12 in this embodiment is formed by axially connecting a pair of crankshafts 12a and 12b whose eccentric directions are opposite to each other, as shown in FIGS. 9 and 10. The non-eccentric parts 12d and 12e at both ends are supported by the rotating plate 15, and one end of the connecting link 8 is connected to the crankshaft 12.
a, one end of the other connecting link 8 is connected to the crankshaft 1
2b via spheres 70, respectively. In addition, in this embodiment, the feed nut 26 and the rotating plate 15 are connected by a rigid link 16, and the connecting plate 9 is connected to a non-eccentric portion between the center of the auxiliary shaft 13 and the center of the rotating shaft 12. 12c to prevent the rotating shaft 12 from deflecting, it is also different from those shown in the previous embodiments. Now, in this device as well, by rotating the main shaft 1, the treatment elements 5, 5 can be made to perform the pine surge action of "knerimomi", and the rotating shaft 12, which also serves as the eccentric member 7, can be rotated. By this, it is possible to make the treatment element 5 perform a tapping motion, and by rotating the screw shaft 14, the interval between the pair of treatment elements 5, 5 can be changed, and further by rotating the feed screw 25. By rotating the rotating shaft 12 around the auxiliary shaft 13, the strength can be adjusted. Here, since the eccentric directions of both crankshafts 12a and 12b of the rotating shaft 12, which is the eccentric member 7, are 180 degrees opposite, the tapping pine surge operation is performed alternately on both the treatment elements 5, 5. ing. For this purpose, when moving from the pounding pine serge operation to the ``kneading'' pine surge operation, or by rotating the pinion 17 and moving it up and down,
When moving to the rolling massage motion in which the treatment element 5 touches the back of the human body, the shift in the eccentric direction accompanying the rotation of the rotating shaft 12 is detected, and the eccentric direction of both crankshafts 12a, 12b is set in a specific direction. When this happens, the rotation of the rotating shaft 12 is stopped, and thereafter the rotation of the main shaft 1 is started. In other words, the rotation axis 1
The rotation of the rotating shaft 12 stops when the positions of the pair of arms 4 and the treatment element 5, which swing around the centers of the inner rings 2 and 2 as the rotating shaft 12 rotates, become equal to each other and there is no "stiffness". And after this,
It has started to move into a ``nerimomi'' or rolling pine surge motion. To explain this point in detail, the rotating shaft 12
A gear 43 provided on the non-eccentric part 12d at one end
A magnet 50 is attached to the rotating plate 15, and a reed switch 51 which is turned on in response to the magnet 50 is attached to the rotary plate 15. As shown in FIG. 11, the reed switch 51 and the magnet 50 are connected to the crankshafts 12a and 12b whose eccentric directions are opposite to each other. The arrangement is such that the magnet 50 turns on the reed switch 51 when the reed switch 51 is exhausted. As shown in FIG. 12, the switching amount detection circuit _S5 consisting of the magnet 50 and the reed switch 51 is connected to the motor drive circuit I and the solenoid drive circuit H.
The motor M and the clutches 24, 23, 3
It is connected to a control circuit CPU ₂ that controls the operations of the third and other components. In the figure, reference numeral 60 denotes an operating device for instructing the treatment element 5 to perform an operation. This operating device 60, which is connected to the main body control unit installed in the chair and the power supply circuit D, has a switch SW ₃₁ for instructing pine surge of "Nerimomi", a switch SW 32 for instructing rolling pine surge, and a switch SW ₃₂ for instructing pounding pine surge. It is equipped with a switch SW ₃₃ for changing the width, a switch for setting strength, etc., as well as a plurality of light emitting elements L ₃₁ to _{L 33} and a light emitting element drive circuit A for displaying the operation of various pine surges, as well as the above-mentioned A control circuit consisting of a signal forming circuit B ₁ that creates a pulse code signal according to the operation of the switches SW ₃₁ to SW ₃₃ and sends it to the main body control section, and a signal discrimination circuit B ₂ that discriminates the sent pulse code signal. Equipped with CPU ₁ . The main body control section includes a signal discrimination circuit C ₂ that discriminates signals sent from the control circuit CPU ₁ of the operating device 60.
The control circuit CPU ₂ includes a signal forming circuit C ₃ for sending signals to the controller 60, a timer circuit C ₄ , an operation instruction circuit C ₁ , etc., and the above-mentioned motor drive shaft circuit I and solenoid drive shaft circuit H. In addition, a vertical position detection circuit S ₄ detects the vertical position of the main shaft 1 along the rail 90, a width position detection circuit S ₃ detects the interval between the pair of treatment elements 5, 5, A detection amount detection circuit S ₁ detects a change in the amount of protrusion of the treatment element 5 due to a change with rotation, and an arm protrusion amount detection circuit S ₂ detects the amount of protrusion of the treatment element 5 caused by driving the feed screw 25. It is also constituted by the above-mentioned discrepancy amount detection circuit _S5 and the like. Note that the configurations of the respective detection circuits indicated by S ₁ to _{S 4} are not illustrated here. When performing a pounding pine surge, the control circuit issues a command for a "kneading" pine surge by rotating the main shaft 1 from the operating device 60, and a command for a rubbing pine surge by rotating the pinion 17 to perform vertical movement. Once in CPU ₂ , the control circuit
The CPU ₂ continues the rotation of the rotating shaft 12 until the clutch amount detection circuit S ₅ is turned on, and at the point when the clutch amount detection circuit S ₅ is turned on, the clutch 3 is activated.
2 is separated, both arms 4, 4 are placed in the same position without any alignment as shown in FIG. 11, and then the rotation of the main shaft 1 and the rotation of the pinion 17 are started. FIG. 13 shows a flowchart of this operation.

【Effect of the invention】

As described above, the present invention includes an eccentric member that is rotationally driven around an axis parallel to the main shaft, a connecting link whose one end is rotatably attached to the eccentric member, and an eccentric member provided on the main shaft. Since one end of the arm attached to the outer ring, which is freely rotatable with respect to the inclined inner ring, is connected to the above-mentioned connecting link, by rotating the main shaft, the treatment element attached to the arm can perform point pine surgery. Of course, by driving the arm, the striking pine surge can be obtained by rotating the eccentric member around an axis parallel to the main axis due to the presence of the eccentric member and the connecting link. Since the stroke depends on the amount of eccentricity of the eccentric member, it is possible to realize the beating pine surge with a mechanism that is simpler and more compact than the conventional example, and also has a The links are slidable in the axial direction of the main shaft, and the connecting arm, which is parallel to the main shaft and threaded onto the rotationally driven screw shaft, is connected to the inner ring so that it can freely rotate. , the massage element allows the axial movement of the main axis without any other restrictions, and the spacing between the massage elements can be adjusted over a wide range by moving the main axis in the axial direction, from the nape of the neck to the width of the shoulders. The width can be adjusted over a wide range.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is a cutaway plan view of the same, Fig. 3 is a cutaway side view showing the operation of the above ``nerimomi'' pine serge, and Fig. 4 is a cutaway view of the same as the above. Fig. 5 is a cutaway side view showing the strength adjustment operation of the same as above, and Figs. 6 and 7 are broken views showing the movement of the tapping pine surger of the same as above. Side view, No. 8
9 is a perspective view of another embodiment; FIG. 10 is a cutaway plan view of the same; FIG. 11 is a cutaway side view showing the positioning operation of the rotating shaft; Figure 12 is the same block circuit diagram as above,
Figure 3 is a flowchart of the same operation as above,
1 is the main shaft, 2 is the inner ring, 3 is the outer ring, 4 is the arm, 5
1 is a treatment element, 6 is a connecting arm, 7 is an eccentric member, 8 is a connecting link, 9 is a connecting plate, 12 is a rotating shaft, 13 is an auxiliary shaft, 15 is a rotating plate, and 16 is a link.

Claims (1)

[Scope of Claims] 1. An inner ring attached to the main shaft as at least eccentric or inclined, an outer ring attached to the outer periphery of the inner ring so as to freely rotate, and an eccentric that rotates eccentrically around an axis parallel to the main shaft. It consists of a member, a connecting link whose one end is rotatably attached to the eccentric member, an arm attached to the outer ring and to which the other end of the connecting link is connected, and a treatment element attached to the arm, The inner ring and the connecting link are each slidable in the axial direction of the main shaft, and a connecting arm that is parallel to the main shaft and is threaded onto a rotationally driven screw shaft is connected to the inner ring so as to freely rotate. Features pine surge machine. 2. The pine surge machine according to claim 1, wherein the connecting link and the connecting arm are connected to each other by connecting plates that are freely rotatable.