JP2004261356A - Chair type massaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair type massaging apparatus where four massagers are made to equally follow and be brought into contact with the backs of unspecified many objective persons with different heights and body types, and various massaging operations are imparted. <P>SOLUTION: In the backrest part B of a chair C provided with a seat part A and the backrest part B, the four massagers D are installed in a state of being vertically operable via a vertical operation imparting mechanism G along a curved guide rail F curved nearly in the form of S in the thickness direction of the backrest part B with a massaging operation imparting mechanism E. In order to make the four massagers D follow and be brought into contact with the back of a human body H, the massaging operation imparting mechanism E is provided with a follow and contact supporting mechanism I for supporting the massagers D in a manner where they can move forwards and backwards in the thickness direction of the backrest part B. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a chair-type massage device that massages the back of a human body with four massage bodies arranged in a backrest portion of a chair.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a chair-type massage device that massages the back of a human body with four massage bodies arranged in a backrest of a chair is known (for example, see Patent Literatures 1 and 2).
[0003]
[Patent Document 1]
JP-A-2000-237257 (refer to page 3, right column, paragraph 0012 and FIG. 1)
[Patent Document 2]
JP-A-2003-38591 (refer to page 9, left column, paragraph 0043 and FIG. 12)
[0004]
[Problems to be solved by the invention]
The massage device of Patent Literature 1 moves a mechanism for giving a massage operation to the four massage bodies along a guide rail that extends linearly in the vertical direction of the backrest of the chair, so that all four massage bodies are used. However, there is a drawback that it is not possible to follow and closely contact an unspecified number of human bodies with different heights and body shapes evenly.
In addition, Patent Literature 1 supports a pair of left and right swing arms, each of which has four massage bodies attached to both upper and lower ends, rotatably at the tip of a lever, and swings the lever left and right, Since the massage operation is indirectly transmitted to the swing arm via the lever by reciprocating rotation, the mechanism for giving the massage operation becomes large and complicated by the installation space of the lever and the movement space of the lever, and it is large and wide. Since the installation space must be secured in the backrest of the chair, there is a drawback that the backrest becomes larger and heavier, and the mechanism is complicated, so the number of parts and the number of installations increase. There are drawbacks such as an increase in manufacturing cost.
[0005]
Furthermore, Patent Literature 1 can apply three types of massage operations of kneading, tapping, and a combination of these, but since it does not have a function of switching the phases of the left and right massage bodies between the same phase and the opposite phase, it is not provided with various functions. There is a disadvantage that it is not possible to give a proper massage operation.
Patent Literature 2 eliminates the drawbacks of Patent Literature 1 in that the lever is omitted and the massage operation imparting mechanism becomes large and complicated. However, a linear guide rail is used. For this reason, there has been a problem in that all four massage bodies cannot evenly and closely follow the back of an unspecified number of human bodies having different heights and body shapes.
[0006]
Further, Patent Document 2 discloses that a rotating shaft penetrating through a swing arm is rotated forward and reverse by only one motor, a half-turn clutch mechanism is provided on the rotating shaft, and the motor is rotated forward to perform a kneading massage operation. The swing massage action is given by reversing the motor at a low speed, and the tapping massage action is given by reversing the motor at a high speed, but it is not possible to give the tapping massage action at a slow speed. A problem remains in that a massage operation cannot be provided.
The present invention has been developed in view of the above-described problems and the like of the prior art, and the object thereof is to equip four massage bodies evenly on the back of an unspecified number of subjects having different heights and body shapes. It is an object of the present invention to provide a chair-type massage device which can closely follow the body and can give various massage operations.
[0007]
[Means for Solving the Problems]
The present invention employs the following technical means to achieve the above object.
That is, the chair-type massage apparatus according to the present invention has a curve in which four massage bodies are curved in a substantially S-shape in the thickness direction of the backrest together with the massage operation imparting mechanism in the backrest of the chair having the seat and the backrest. In order to move the massage body to follow the back of the human body along the shape guide rail so as to be able to move up and down through the elevating operation applying mechanism, and to make the massage body follow the back of the human body, with respect to the massage operation applying mechanism, And a follow-up contact support mechanism for supporting the robot so as to be able to move back and forth.
[0008]
According to the above configuration of the present invention, it is possible to efficiently and effectively apply a massage operation by making the four massage bodies follow and closely contact the backs of an unspecified number of subjects having different heights and body shapes evenly. .
Further, the massage body of the present invention is attached to upper and lower ends of left and right swing arms that are swingably supported around a tilt cam mechanism on a first rotating shaft horizontally arranged in the left and right direction. The massage operation applying mechanism is a first operation mechanism that applies a massage operation to the massage bodies at both upper and lower ends of the swing arm via a first rotation shaft and an inclined cam mechanism by a first driver. And a second operating mechanism for applying a beating massage operation to a massage body at both upper and lower ends of the swing arm via a second rotating shaft, a crank mechanism, and a connecting rod by a second driving body. It is characterized by.
[0009]
According to the above configuration of the present invention, the first operation mechanism and the second operation mechanism can be operated not only independently but also simultaneously, and the back of the massage subject is massaged with four massage bodies and hit. A variety of massage operations can be provided by these simultaneous operations.
Further, the following contact support mechanism of the present invention is characterized in that the second operation mechanism is configured to be movably supported in a direction orthogonal to the first rotation axis.
[0010]
According to the above configuration of the present invention, when the massage body is pressed by the human body, the swing arm rotates around the first rotation axis, and the second operation mechanism connected to the swing arm rotates the first rotation shaft. The massage body follows the human body because it moves in a direction perpendicular to the body.
Further, the first and second operation mechanisms of the present invention are characterized in that they are arranged so as to overlap with each other in the thickness direction of the backrest of the chair.
According to the above configuration of the present invention, the vertical dimension of the massage operation imparting mechanism can be reduced, and compactness can be achieved.
[0011]
In addition, according to the present invention, the second driving body is disposed on the back side of the backrest of the first rotation shaft, and the second rotation shaft and the first driving body are disposed on both upper and lower sides of the first rotation shaft. It is characterized by being arranged.
According to the above configuration of the present invention, the thickness dimension of the massage operation applying mechanism can be reduced, and compactness can be achieved.
Further, the present invention is characterized in that the first driving body and the second driving body are arranged between the left and right sides of the left and right swing arm.
[0012]
According to the above configuration of the present invention, the size of the massage operation imparting mechanism in the left-right direction can be reduced, and compactness can be achieved.
Further, the chair-type massage device of the present invention is a chair provided with a seat portion and a backrest portion, and is extended vertically on both sides in the backrest portion, and has a substantially S-shaped portion in the thickness direction of the backrest portion. A curved curved guide rail, an elevating frame erected between the curved guide rails so as to be able to ascend and descend, and an elevating operation installed in the backrest for moving the elevating frame up and down in the vertical direction of the backrest. An application mechanism, and a massage operation applying mechanism mounted on the elevating frame, wherein the massage operation applying mechanism rotates a first rotating shaft erected in the left-right direction of the elevating frame, and rotates the first rotating shaft. A first driving body mounted on a lifting frame for driving, a pair of left and right swing arms having a vertically rotatable center portion supported by the first rotation shaft, and a swing arm; Massaging bodies respectively attached to the upper and lower ends of the arm, and are installed between the first rotating shaft and the swinging arm, and the upper end of each of the left and right swinging arms with the rotation of the first rotating shaft; A tilting cam mechanism for swinging the lower end in opposite directions in the left-right direction, and restricting the swinging arm from rotating with the rotation of the first rotating shaft; A swing-preventing member engaged with the swing arm so as to allow swinging motion to the swinging arm, a second drive body that can be driven forward and reverse and supported by the lifting frame via a support mechanism described below, A second rotating shaft driven forward and reverse by the second driving body and connected to and supported by the second driving body in a state parallel to the first rotating shaft; and left and right cranks rotationally driven by the second rotating shaft. Mechanism, the left and right crank mechanisms and the swing arm A connecting rod for connecting a stop member to convert the rotational motion of the second rotary shaft into a linear reciprocating motion to give the reciprocating rocking motion about the axis of the first rotary shaft to the rocking arm; A half-rotation clutch mechanism disposed between one of the crank mechanisms and the second rotation shaft and operatively connected to each other so as to be relatively rotatable within a range of approximately half a rotation of the second rotation shaft; A follow-up contact support mechanism for movably supporting the second driving body on an elevating frame following the rotation of the swing arm around the first rotation axis for bringing the swing arm into contact therewith is provided. .
[0013]
According to the configuration of the present invention, the upper end and the lower end of the swing arm are swung in the left and right directions by the first driver through the inclined cam mechanism in opposite directions to each other, so that the massage body performs the kneading massage motion. The swinging arm is reciprocated around the axis of the first rotation shaft by the second driving body via the crank mechanism and the connecting rod, whereby the tapping massage movement can be imparted by the massage body. . In this case, the half-rotation clutch mechanism allows the rotation of the second rotation shaft to be transmitted between the left and right crank mechanisms by shifting the phase by half a rotation (180 °). In the case of setting so that the tapping massage operation of the left and right swing arms is applied in the same phase during the forward rotation, the tapping massage operation of the left and right swing arms is applied in the opposite phase during the reverse rotation of the second rotation axis. Can be. In addition, the first driving body and the second driving body can be driven independently and can be driven simultaneously, and the speed can be changed. Various massage operations can be provided by switching to the opposite phase.
[0014]
Also, in the present invention, the second driving body is connected to the elevating frame by the support mechanism for following contact, although the crank mechanism is connected to the second rotating shaft and the second driving body via the connecting rod to the swing arm. The swing arm is allowed to rotate when the human body is pressed against the massage body by movably supporting the massage body, thereby allowing each massage body to abut the human body almost evenly. Further, the guide rail for guiding the elevating frame equipped with the massage operation imparting mechanism in the vertical direction of the backrest portion of the chair has a curved shape that is curved in a substantially S-shape in the thickness direction of the backrest portion on the way. For this reason, all four massage bodies are evenly and closely followed at any position on each part of the back of an unspecified number of subjects with different heights and body shapes, and efficient and effective massage is achieved. It is possible to 's.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic side view of a chair-type massage apparatus according to the present invention. In a backrest portion B of a chair C having a seat portion A and a backrest portion B, four massage bodies D and a massage operation imparting mechanism E are provided. It is installed so as to be able to move up and down along a curved guide rail F curved in a substantially S-shape in the thickness direction of the backrest portion B via a lifting and lowering operation imparting mechanism G, and the massage body D follows the back of the human body H A follow-up contact support mechanism I is provided for supporting the massage operation imparting mechanism E so as to be able to move back and forth in the thickness direction of the backrest B in order to make contact.
[0016]
The configuration of the chair C preferably includes a reclining mechanism (not shown) in which the angle of the backrest B with respect to the seat A can be freely adjusted, but other various types of configurations may be employed.
The massage body D is formed in a circular shape, and the center thereof is rotatably attached to the upper and lower ends of the left and right swing arms 1 via left and right mounting pins 2, each of which is a human body H. Are arranged in an independent state apart from each other up, down, left, and right so as to abut individually. The swing arm 1 has a bifurcated shape in which both upper and lower ends are curved and extended forward (forward in the thickness direction of the backrest portion B), and is made of a resin or metal plate.
[0017]
As shown in FIGS. 2 to 8, the massage operation applying mechanism E includes a first operation mechanism E1 for applying a massage massage operation to the massage body D via the swing arm 1 and a second operation mechanism for applying a tapping massage operation. And an operation mechanism E2.
The first and second operation mechanisms E1 and E2 are arranged so as to overlap in the thickness direction of the backrest B of the chair C.
Further, the first operation mechanism E1 includes a first driving body 4 that rotationally drives the first rotation shaft 3 that is horizontally arranged in the left-right direction. The second operation mechanism E2 includes a second driving body 6 that rotationally drives the second rotation shaft 5 arranged in parallel with the first rotation shaft 3. The second driving body 6 is disposed on the back side of the backrest of the first rotating shaft 3. The second rotating shaft 5 and the first driving body 4 are disposed on both upper and lower sides of the first rotating shaft 3. The first driver 4 and the second driver 6 are disposed between the left and right swing arms 1.
[0018]
The massage operation applying mechanism E has a lifting frame 7 on which a first operation mechanism E1 and a second operation mechanism E2 are mounted. The first rotating shaft 3 is rotatably mounted on the elevating frame 7 via a bearing 8, and the central portion in the vertical direction of the swing arm 1 is relatively rotated on the first rotating shaft 3 via an inclined cam mechanism 9. It is freely supported through.
As shown in FIG. 9, the tilt cam mechanism 9 includes a first boss 9a fixed to the first rotating shaft 3 via a rotation preventing means (not shown) such as a key, and a screw attached to the first boss 9a. And a second boss portion 9b connected in the axial direction via a fastener 9c such as a cylindrical cam surface on an outer peripheral surface of an axial joining surface between the first boss portion 9a and the second boss portion 9b. 9d is formed so as to be inclined with respect to the axial direction of the first rotary shaft 3, and the center in the vertical direction of the swing arm 1 is rotatably fitted to the cylindrical cam surface 9d via a bearing 1a. I have.
[0019]
The inclination directions of the cylindrical cam surfaces 9d of the left and right inclined cam mechanisms 9 with respect to the first rotating shaft 3 are set to be opposite to each other.
The cylindrical cam surface 9d may be formed integrally with the second boss 9b, or may be formed separately from the first and second bosses 9a and 9b and connected by a fastener. .
As shown in FIG. 9, a speed reducer 10 integrated with the first driving body 4 of the first operation mechanism E1 is attached to a substantially central portion of the front of the lifting frame 7 via a vibration absorbing material 10a such as a rubber material. The central portion in the axial direction of the first rotating shaft 3 passes through the speed reducer 10. As shown in FIG. 9, the speed reducer 10 includes a gear case 11, a bearing 12 that rotatably supports the first rotating shaft 3 in the gear case 11, a worm wheel 13 fixed to the first rotating shaft 3, A worm 14 meshes with the worm wheel 13 and has a gear mechanism. The output shaft of the first drive unit 4, which is a forward / reverse rotating electric motor attached to one side surface (upper surface) of the gear case 11, is connected to the worm 14. I have.
[0020]
Therefore, when the first driver 4 is driven, the first rotating shaft 3 rotates via the worm 14 and the worm wheel 13.
When the first rotating shaft 3 rotates, the pair of left and right swing arms 1 swings in the left and right directions due to the inclined rotation of the cylindrical cam surface 9d of the inclined cam mechanism 9 that rotates integrally with the first rotating shaft 3. Thereby, the upper and lower two massage bodies D attached to the left and right swing arms 1 swing vertically in opposite directions (see FIGS. 10A and 10B).
[0021]
Since the cam surfaces 9d of the left and right tilt cam mechanisms 9 are tilted in opposite directions to each other, the massage bodies D attached to one end of the left and right swing arm 1 as shown in FIGS. When the massage bodies D attached to the other end separate from each other when they approach each other, the massage bodies D attached to the other end approach each other when the massage bodies D attached to the one end separate from each other. Operation is repeatedly performed.
As a result, a massage massage in which the human body H is sandwiched between the two massage bodies D corresponding to the left and right is performed.
[0022]
The first driving body 4, the speed reducer 10, the first rotating shaft 3, the tilt cam mechanism 9, and the like constitute a first operation mechanism E1 for causing the massage body D to perform massaging through the swing arm 1. .
As shown in FIG. 11, the second operation mechanism E2 includes a second driving body 6, a speed reducer 15 integrated with the second driving body 6, and a The rotating shaft 5 includes a crank mechanism 16 and a connecting rod 17 that convert the rotating motion of the second rotating shaft 5 into a linear reciprocating motion to apply a beating massage operation to the swing arm 1.
[0023]
As shown in FIGS. 13 to 15, the second driving body 6 is supported by the elevating frame 7 together with the speed reducer 15 via a follow-up contact support mechanism I so as to be vertically movable.
As shown in FIGS. 3 and 5, the speed reducer 15 is disposed below the elevating frame 7, that is, on the opposite side of the first driving body 4 with the first rotating shaft 3 interposed therebetween. As shown in FIG. 11, the speed reducer 15 includes a gear case 18, a bearing 19 that rotatably supports the second rotating shaft 5 in the gear case 18, a worm wheel 20 fixed to the second rotating shaft 5, A worm 21 meshes with the worm wheel 20 and has a gear mechanism. The output shaft of the second drive unit 6, which is a forward / reverse electric motor mounted on one side surface (upper surface) of the gear case 18, is connected to the worm 21. I have.
[0024]
Therefore, when the second driver 6 is driven, the second rotating shaft 5 rotates via the worm 21 and the worm wheel 20.
The second rotating shaft 5 is disposed in parallel with the first rotating shaft 3 as shown in FIGS. 3, 5, 6, 13 to 15, and the like. As best shown in FIG. 11, the crank mechanism 16 is directly fixed and connected, and the crank mechanism 16 is indirectly connected to the other end via a half-turn clutch mechanism 22 described later.
The left and right crank mechanisms 16 each have an eccentric rotary disk 16a eccentric with respect to the second rotary shaft 5, and an outer peripheral portion of the eccentric rotary disk 16a has an annular end 17a at one end (lower end) of a connecting rod 17. It is rotatably fitted and connected via a bearing 16b.
[0025]
The eccentric rotary disk 16a of the crank mechanism 16 at the left end is directly fixed to the second rotary shaft 5 via a fixing means such as a key so as to be integrally rotatable. However, the eccentric rotating disk 16a of the right end crank mechanism 16 is connected to the half-rotating clutch mechanism 22 and the screw 23 so as to be integrally rotatable as shown in FIG. They are fitted so as to be relatively rotatable.
The half-turn clutch mechanism 22 includes a clutch disk 22a fitted to the second rotation shaft 5 so as to be rotatable relative to the second rotation shaft 5, and a clutch pin 22c engaged with a clutch groove 22b of the clutch disk 22a. As shown in FIGS. 11 and 12, the clutch groove 22b is formed in a semicircular groove shape by slitting a central portion of the clutch disk 22a in the axial direction over a substantially semicircular range. The clutch pin 22c is inserted toward the second rotating shaft 5 from outside in the radial direction of the clutch groove 22b, and is fixed to the second rotating shaft 5 by screwing or press fitting.
[0026]
The half-turn clutch mechanism 22 switches the eccentric phase of the left and right crank mechanisms 16 between the same phase and the opposite phase that is shifted by 180 ° between forward and reverse rotations of the second rotating shaft 5 to switch the left and right swing arms. This is to make it possible to transmit a beating massage operation to the first.
The other end (upper end) of the connecting rod 17 connected to the crank mechanism 16 is connected to one end of a link 24 via a connecting pin 25, as shown in FIGS. Is connected to a steady rest member 26 via a connecting pin 27. The link 24 is supported by a guide bracket 28 of the lifting frame 7 via a guide shoe 29 so as to be slidable in the vertical direction, as shown in FIGS.
[0027]
The anti-sway member 26 has a tubular shape that is long in the left-right direction. As shown in FIGS. 4 and 7, the anti-sway member 26 projects rearward from the center of the swing arm 1 in the up-down direction. The engaging member 30 composed of the provided pin is inserted and engaged with the steady rest member 26.
For this reason, the rotation of the swing arm 1 is restricted so as not to rotate along with the first rotation shaft 3, and as shown in FIGS. 4 and 9, the left and right swing of the swing arm 1 by the first operation mechanism E 1 is performed. The lateral movement of the engaging member 30 accompanying the movement is allowed within the range of the lateral width of the long tubular shape of the steady member 26.
[0028]
Note that the steady rest member 26 may be formed in a rod shape in the left-right direction, and the engaging member 30 may be formed in a forked shape so as to engage with the rod shaped steady rest member 26.
The follow-up contact support mechanism I is for supporting the second operation mechanism E2 movably in the vertical direction (longitudinal direction of the connecting rod 17) perpendicular to the first rotation shaft 5.
As shown in FIGS. 2 and 13 to 15, the follow-up contact support mechanism I is provided in a guide groove 31 formed in a back plate portion of the lifting frame 7 so that the right and left of the speed reducer 15 integrated with the second driving body 6 can be moved. Both sides are fitted and supported via guide shoes 32 so as to be slidable in the vertical direction. The vertical sliding range of the speed reducer 15 integrated with the second driving body 6 is regulated by stoppers 33 and 34 provided on the lifting frame 7.
[0029]
With the configuration in which the second operation mechanism E2 is vertically movably supported by the follow-up contact support mechanism I, an external force is applied to the massage body D regardless of the massage operation by the first and second operation mechanisms E1 and E2. For example, when the human body H is pressed against the massage body D, the swing arm 1 follows the first rotational axis 3 according to the curve of the human body H (for example, an S-shaped curve of the back). By rotating, each massage body D can follow the human body H substantially evenly and abut against it (see FIG. 14).
[0030]
That is, as shown in FIG. 14, the swing arm 1 is restricted from rotating around the first rotation shaft 3 by the steady rest member 26, but the second operating mechanism connected to the steady rest member 26. Since E2 is movably supported by the follow-up contact support mechanism I, when the human body H is pressed against the massage body D, the second operation mechanism E2 and the steady rest member 26 move up and down to swing. The rotation of the moving arm 1 is allowed.
Therefore, in the present invention, although the swing arm 1 is attached to the first rotating shaft 3 and the hit massage is enabled by the second operation mechanism E2, the swing arm 1 according to the curve of the human body H is provided. Follow-up contact rotation is possible.
[0031]
The elevating frame 7 of the above-mentioned massage operation applying mechanism E has rotatably mounted guide rollers 35 at two symmetrical positions on both the left and right sides. The guide rollers 35 are slidably fitted on the curved guide rails F. Have been combined. As shown in FIG. 2, the guide rail F is fixed to both left and right sides of the fixed frame 36 via support leg members 37.
As shown in FIGS. 1, 2, and 17, the lifting / lowering operation imparting mechanism G is a feed screw driven forward / reversely through a speed reducer 39 by a third driving body 38 composed of an electric motor capable of forward / reverse rotation drive. It comprises a shaft 40 and a feed nut member 41 screwed to the feed screw shaft 40.
[0032]
The third driving body 38 is integrated with a speed reducer 39, and the speed reducer 39 is fixed to the fixed frame 36 via a vibration absorbing material 39a. A lower end of a feed screw shaft 40 is rotatably supported in the speed reducer 39 via a bearing (not shown), and a worm wheel 44 is fixed to the lower end of the feed screw shaft 40. A worm 45 meshing with the worm wheel 44 is connected to an output shaft of the third driving body 38.
Therefore, when the third driver 38 is driven, the feed screw shaft 40 rotates via the worm 45 and the worm wheel 44.
[0033]
The feed screw shaft 40 is disposed at the center in the left-right direction of the fixed frame 36 with the axis thereof oriented in the up-down direction, and the upper end is rotatably mounted and supported on the upper end of the fixed frame 36 via a bearing bracket 46. It is rotatably mounted and supported on the fixed frame 36 via the gear case 42 of the speed reducer 39.
As shown best in FIGS. 15 and 8, the connection between the feed nut member 41 and the elevating frame 7 is performed by a pin-shaped engaging member 48 laid in the left-right direction via a bracket 47 at the center of the back surface of the elevating frame 7. And a bifurcated fork-shaped engaging member 49 fixed to the feed nut member 41. The bifurcated fork-shaped engaging member 49 is engaged with the engaging member 48 of the elevating frame 7 at any position of the curved guide rail F curved in an S-shape in the thickness direction of the backrest B. Is formed in a long groove shape in the thickness direction. Note that the engagement member 49 may have a long hole shape instead of the forked fork shape.
[0034]
The left and right ends of the fixed frame 36 are fixed to the backrest B of the chair C. The backrest B is covered with a cover member having flexibility and toughness.
The seat portion A of the chair C may be of a type that can be directly placed on a floor or the like (seat chair type), or may be of a type with legs having a predetermined height from the floor or the like.
The first driver 4 of the first operation mechanism E1, the second driver 6 of the second operation mechanism E2, and the third driver 38 of the lifting / lowering operation applying mechanism G are controlled by a control panel (not shown) by a control electric circuit (not shown). Various operations such as a single operation, a simultaneous operation, an operation selection operation for each course, an operation speed selection operation, and the like can be performed through the operation (omitted).
[0035]
The embodiment of the present invention has the above configuration, and the operation will be described next.
First, when the first driving body 4 of the first operation mechanism E1 is driven to rotate forward or backward, the first rotating shaft 3 rotates forward or backward, and the inclined cylindrical cam surface 9d of the inclined cam mechanism 9 is interposed via the bearing 1a. The swing arm 1 that fits in swings right and left. Since the right and left cylindrical cam surfaces 9d have the opposite inclinations, the left and right swing arms 1 repeat a swelling operation including an operation of approaching and separating from each other as shown in FIG. Thereby, a massage massage operation is performed.
[0036]
Next, when the second driving body 6 of the second operation mechanism E2 is driven to rotate forward (for example, clockwise in FIG. 12), the second rotating shaft 5 rotates forward in the same direction. Since the rotational force is transmitted to the clutch disk 22a after the clutch pin 22c of the mechanism 22 has rotated by a half turn in the clutch groove 22b, the eccentric phase of the left and right crank mechanisms 16 is shifted by 180 ° to rotate eccentrically. As a result, the left and right swing arms 1 are swung around the first rotating shaft 3 in opposite phases via the connecting rod 17. That is, the beating massage operation is reversed on the left and right as shown in FIG. 18A, and the beating operation is performed alternately.
[0037]
When the second driving body 6 is driven to rotate in the reverse direction, the clutch pin 22c of the half-turn clutch mechanism 22 transmits a rotational force to the clutch disk 22a after making a half rotation in the reverse direction in the clutch groove 22b. The eccentric phases of the left and right crank mechanisms 16 return to the same phase. In this state, the left and right swing arms 1 are swung around the first rotation shaft 3 via the connecting rod 17 in the same phase. That is, the tapping massage operation is the same on the left and right as shown in FIG. 18B, and the tapping operation is performed simultaneously.
When the rotation of the second rotating shaft 5 by the second driving body 6 is set to a relatively high speed, the human body H cannot follow the movement of the massage body D in the backrest thickness direction and does not resonate. The tapping massage operation as described above is performed. However, when the rotation of the second rotary shaft 5 is set to be low enough to allow the human body H to follow the movement of the massage body D, each massage body D Accordingly, it is possible to perform a pressing massage (acupressure massage) for locally pressing the human body H.
[0038]
Therefore, the second operation mechanism E2 is configured to perform switching between hit massage and press massage by adjusting the rotation speed of the second driving body 6, or to perform either hit massage or press massage. It is also possible.
When the first operating mechanism E1 and the second operating mechanism E2 are operated at the same time, the above-described operations, that is, the operations of FIGS. 10A and 10B and the operations of FIGS. Done. In this case, the operation speed can be freely combined from high speed to low speed.
[0039]
During the operation of the first operating mechanism E1 and the second operating mechanism E2, the feed is performed by operating the third driving body 38 of the lifting / lowering operation applying mechanism G to rotate the feed screw shaft 40 forward / reverse via the speed reducer 39. The lifting frame 7 is moved up and down in the backrest B along the curved guide rail F via the nut member 41, and the massage position on the back of the massage subject can be freely changed in the vertical direction.
In the vertical movement by the lifting / lowering operation imparting mechanism G, the upper and lower ends are regulated by limit switches (not shown), and when the lifting / lowering frame 7 reaches the upper end or the lower end, the third driving body 38 is stopped.
[0040]
When the continuous massage operation is performed, for example, the control circuit is configured to reverse the rotation direction of the third driving body 38 when the lifting frame 7 reaches the upper and lower ends.
Since the elevating frame 7 is moved up and down along the curved guide rail F curved in a substantially S-shape in the thickness direction of the backrest B, each massage body D is formed into a substantially S-shaped curve on the back of the massage subject H. It can be brought into contact by being guided and moved almost along.
[0041]
Moreover, when the human body H is pressed against the massage body D, the second operating mechanism E2 including the second rotating shaft 5, the second driving body 6, the speed reducer 15, the link 24, etc. As shown, the guide bracket 28 and the guide shoe 29 and the guide groove 31 and the guide shoe 32, which are the support mechanism I for follow-up contact, are slidably supported in the vertical direction. As a result, the second operating mechanism E2 can be moved to follow, so that the massage body D can evenly contact the human body H.
Therefore, according to the above-described embodiment of the present invention, the four massage bodies D can be evenly and closely contacted with the back of an unspecified number of massage subjects having different heights and body shapes, and various massages can be performed. Actions can be given.
[0042]
FIG. 19 shows another half-turn clutch mechanism 22.
The half-turn clutch mechanism 22 in this case is configured by dividing the second rotating shaft 5 into a first shaft portion 5a and a second shaft portion 5b, and the first clutch fixed to an end of the first shaft portion 5a. A second clutch body 22e rotatably and axially movably inserted in an end portion of the second shaft portion 5b in a range of half a rotation and axially movable and detachably engaged with the first clutch body 22d; A cam means 22f is provided to first disengage the second clutch body 22e from the first clutch body 22d when the rotating shaft 5 rotates forward or reverse, and then to engage the clutch body 22d again.
Each of the clutch teeth 22g of the first and second clutch bodies 22d and 22e is formed in a shape in which the concave portion 22h and the convex portion 22i are interchanged in a range equally divided into four in the circumferential direction around the axis. For this reason, the first clutch body 22d and the second clutch body 22e mesh with each other at two positions separated by 180 ° in the circumferential direction around the axis.
[0043]
On the other hand, the cam means 22f includes a boomerang-shaped cam hole 22j formed in the outer peripheral wall of the second clutch body 22e, and a cam pin 22k driven into the end of the second shaft 5b in the radial direction. Is movably housed in the cam hole 22j. The boomerang-shaped cam hole 22j has a bent portion at the center thereof located on the first clutch body 22d side, and both end portions thereof are located on the opposite side to the first clutch body 22d. It is arranged on the outer peripheral wall.
Further, the second clutch body 22e is constantly urged toward the first clutch body 22d by a pressing spring 22n externally fitted to the second shaft portion 5b. In the case of such a half-turn clutch mechanism 22, when the second rotating shaft 5 that is normally rotating in the direction of the arrow C in FIG. 19 is turned in the reverse direction in the direction of the arrow D, the second clutch body 22e is moved by the reaction force received from the cam pin 22k. The second clutch body 22e moves to the opposite side of the first clutch body 22d along the hole 22j and is disengaged from the first clutch body 22d once, and when the cam pin 22k exceeds the bent portion of the cam hole 22j, the second clutch body 22e becomes the first clutch body 22e. Returning to the 22d side, the clutch body 22d is engaged again.
[0044]
The same applies to the case where the second rotating shaft 5 rotating in the direction of arrow D rotates forward in the direction of arrow C.
The tapping massage operation by the half-turn clutch mechanism 22 in this embodiment is the same as the operation of the half-turn clutch mechanism 22 shown in FIG.
The embodiment described in the present specification is an exemplification of the present invention, and is not intended to limit the interpretation. That is, the scope of the present invention is defined by the appended claims, and all modifications and equivalents of the claims included in the meaning of the claims are included in the present invention.
[0045]
For example, the adjustment of the rotation speed of the second rotating shaft 5 may be performed by electrically changing the speed of the second driving body 6 by a control circuit, or may be performed mechanically by changing gears or the like.
However, the arrangement of the first driving body 4, the second driving body 6, and the reduction gears 10 and 15 is not limited to the above-described embodiment, but is provided at the shaft end of the first and second rotating shafts 3 and 5. The first driving body 4 and the second driving body 6 may be disposed below the respective speed reducers 10 and 15 so that the first driving body 4 and the second driving body 6 can be disposed on the left and right outer sides of the massage operation applying mechanism E so as to be connected. it can. Further, the first and second operation mechanisms E1 and E2 may be arranged upside down (the second operation mechanism E2 is disposed above the first operation mechanism E1).
[0046]
Further, the half-turn clutch mechanism 22 can be used for the first rotation shaft 3.
In this case, the first rotary shaft 3 is divided into right and left, and the inclined cam mechanism 9 is attached to each of the left and right shafts, and the half-turn clutch mechanism 22 is provided between the left and right shafts. In this case, the first and second rotations may be performed in such a manner that the cylindrical cam surfaces 9a of the left and right tilt cam mechanisms 9 attached to the respective shaft portions are tilted in opposite directions and tilted in the same direction. Switching can be performed by forward / reverse rotation of the shaft 3.
[0047]
When the cylindrical cam surfaces 9a of the left and right tilt cam mechanism 9 are tilted in the same direction, the two massage bodies D corresponding to the left and right swing in the same left and right directions. It is possible to perform a swing massage that locally moves the human body H right and left, which is different from a massage massage to be applied.
The first driver 4 and the second driver 6 may be configured such that when one of them is operated by the control circuit, the operation of the other is regulated, or both may be operated simultaneously. . In the latter case, the swinging arm 1 is reciprocated about the first rotation axis 3 while being swung left and right, so that the hitting massage can be performed while the massage body D is reciprocated right and left.
[0048]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the chair-type massage apparatus which can make four massage bodies follow closely closely the back of unspecified number of subjects of different heights, body shapes, etc., and can give various massage motions Can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a chair-type massage device according to the present invention.
FIG. 2 is a plan view of the massage operation applying mechanism.
FIG. 3 is a perspective view of the massage operation imparting mechanism.
FIG. 4 is a perspective view of the massage operation imparting mechanism in a state where a right side wall portion of the lifting frame is cut off.
FIG. 5 is a perspective view of the massage operation applying mechanism viewed from a direction different from that of FIG. 4;
FIG. 6 is a perspective view of the massage operation imparting mechanism viewed from a direction different from that of FIG. 3;
FIG. 7 is a perspective view of the massage operation imparting mechanism viewed from still another angle.
FIG. 8 is a perspective view of the massage operation imparting mechanism as viewed from above the rear surface side;
FIG. 9 is a plan view showing a schematic configuration of a first operation mechanism, and a right half is shown in cross section.
FIGS. 10A and 10B are explanatory views of a massaging massage operation.
FIG. 11 is a front view showing a schematic configuration of a second operation mechanism, and a right half is shown in cross section.
FIG. 12 is a central vertical sectional side view of the half-turn clutch mechanism shown in FIG. 11;
FIG. 13 is a side view for explanation during a tapping massage operation of a tapping massage operation transmission system by the second operation mechanism.
FIG. 14 is an explanatory side view at the time of a follow-up contact operation of the second operation mechanism.
FIG. 15 is an enlarged side view of a connecting portion between the massage operation applying mechanism and the elevating operation applying mechanism.
FIG. 16 is a schematic side view for explaining an installation state of a stopper that regulates a follow-up contact operation range of the second operation mechanism.
FIG. 17 is a schematic plan view of a lifting / lowering operation imparting mechanism.
FIGS. 18A and 18B are explanatory diagrams of a tapping massage operation by the second operation mechanism.
FIG. 19 is an explanatory diagram of another embodiment of the half-turn clutch mechanism.
[Explanation of symbols]
A Seat
B backrest
C chair
D Massage body
E Massage action imparting mechanism
E1 First operation mechanism
E2 Second operation mechanism
F Curved guide rail
G Elevating mechanism
H human body
I Follow-up contact support mechanism
1 Swing arm
3 First rotation axis
4 First driver
5 Second rotating shaft
6 Second driver
7 Elevating frame
9 Inclined cam mechanism
10 Reduction gear
15 Reduction gear
16 Crank mechanism
17 Connecting rod
22 Half-turn clutch mechanism
24 links
26 Anti-sway member
28 Guide Bracket
29 Guide Shoe
30 Engagement member
31 Guide groove
32 Guide Shoe
35 Guide roller
36 fixed frame
38 Third driver
39 reducer
40 feed screw shaft
41 Feed nut member
48 Engagement member
49 Engaging member

Claims (7)

In the backrest portion of the chair having the seat portion and the backrest portion, the four massage bodies are moved together with the massage operation imparting mechanism along the curved guide rail curved in a substantially S-shape in the thickness direction of the backrest portion via the elevating operation imparting mechanism. Follow-up for supporting the four massage bodies in contact with the back of the human body so as to be able to move back and forth in the thickness direction of the backrest part in order to make the four massage bodies follow-contact the back of the human body. A chair-type massage device comprising a contact support mechanism. The massage body is attached to upper and lower ends of left and right swing arms that are swingably supported around a tilt cam mechanism on a first rotating shaft horizontally arranged in the left-right direction, and the massage operation is performed. An application mechanism configured to apply a massaging operation to the massaging body at both upper and lower ends of the swing arm via the first rotation shaft and the tilt cam mechanism by a first driving body; and a second driving mechanism. A second operation mechanism for applying a tapping massage operation to a massage body at both upper and lower ends of the swing arm via a second rotating shaft, a crank mechanism, and a connecting rod by a body. Item 2. A chair-type massage device according to item 1. The chair type massage apparatus according to claim 1, wherein the follow-up contact support mechanism is configured to support the second operation mechanism movably in a direction orthogonal to the first rotation axis. The chair-type massage apparatus according to claim 2, wherein the first and second operation mechanisms are arranged so as to overlap with each other in a thickness direction of a backrest of the chair. The second driving body is disposed on the back side of the backrest of the first rotation shaft, and the second rotation shaft and the first driving body are disposed on both upper and lower sides of the first rotation shaft. The chair type massage device according to claim 2, characterized in that: The chair-type massage apparatus according to claim 2, wherein the first driver and the second driver are disposed between the left and right sides of the left and right swing arm. A chair provided with a seat portion and a backrest portion; a curved guide rail extending vertically on both sides of the backrest portion and having a middle portion curved in a substantially S-shape in the thickness direction of the backrest portion; An elevating frame erected between the guide rails, an elevating operation imparting mechanism installed in the backrest for moving the elevating frame up and down in the vertical direction of the backrest, and mounted on the elevating frame. With a massage operation imparting mechanism,
The massage operation imparting mechanism includes a first rotating shaft erected in the left-right direction of the elevating frame, a first driving body installed on the elevating frame for driving the first rotating shaft to rotate, and the first rotating shaft. A pair of left and right swing arms having a central portion vertically supported by a shaft so as to be relatively rotatable, massage bodies attached to upper and lower ends of the swing arm, the first rotating shaft and the swing arm And a tilt cam mechanism that swings the upper end and the lower end of each of the left and right swing arms in opposite directions in the left-right direction with the rotation of the first rotation shaft, and the swing arm is Anti-swing member engaged with the swing arm so as to restrict the co-rotation with the rotation of the first rotating shaft, and to allow the swing arm to swing in the left-right direction; The lifting frame is supported via a support mechanism described below. A supported second drive body capable of forward / reverse rotation drive, and a second rotation shaft driven forward / reverse rotation by the second drive body and connected to and supported by the second drive body in a state parallel to the first rotation axis. And a left and right crank mechanism that is rotationally driven by the second rotation shaft, and the left and right crank mechanisms and the vibration-preventing member of the swing arm are connected, and the rotation of the second rotation shaft is converted into a linear reciprocating motion. A connecting rod for converting the swing arm into a reciprocating swing motion about an axis of a first rotary shaft, and a connecting rod between one of the left and right crank mechanisms and a second rotary shaft; And a semi-rotating clutch mechanism interlockingly connected to each other so as to be relatively rotatable within a range of approximately half a rotation of the swing arm, following the rotation of the swing arm about a first rotation axis in order to make the massaging body contact the back of the human body. Movably supports the second driver on the lifting frame Chair-type massaging apparatus characterized by and a follow-up contact supporting mechanism that.

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