JPH0225621B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a chair-type pine-surge device in which a pine-surge roller is driven vertically inside the back of a chair.

[Technical background of the invention and its problems] In general, a so-called chair-type pine-surge device that provides pine-surge from the waist to the shoulders of a user is known, in which a pine-surge roller is movably installed in the back of the chair. It is being

By the way, in the conventional chair-type pine surge device, as shown in Japanese Patent Publication No. 57-4265, for example, the pine surge roller is simply driven to travel. Therefore, the user's body is simply pressed by the pine surge roller, and the user is hardly able to receive the pine surge action that massages and massages the muscles, resulting in an inability to obtain a sufficient pine surge effect.

[Purpose of the invention]

The object of the present invention is to provide a chair-type pine surgery device which can press a user's body with a pine surgery roller and at the same time massage the user's body while patting it, thereby obtaining a great pine surgery effect.

[Summary of the invention]

In this invention, a screw shaft that is rotatably driven is provided on the back of the chair along the vertical direction, and the frame is driven by this screw shaft, and the frame is provided with a structure that allows the frame to swing freely along the running direction of the frame. A mounting body is connected to the mounting body, a pine surge roller is rotatably provided on the mounting body, and a vibrating body that vibrates when energized is provided so as to be elastically displaceable via an elastic member, and the pressing action by the pine surge roller is and a chair-type pine massage device capable of giving the user a massage action while being beaten by the vibrating body.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 11.
This will be explained with reference to the figures. In FIG. 1, 1 is the seat of the chair, 2 is the back, and 3 is the support. This support 3
Both ends in the width direction are attached and fixed to the inner surfaces of a pair of armrest bodies 4 (only one is shown). Above seat part 1
One end of a mounting piece 6 is fixed to both sides of the rear end of the seat frame 5 forming the seat frame 5, and the other end of this mounting piece 6 is pivotally connected to the rear end of the support 3 by a support shaft 7. . On both sides of the front end of the support body 3 in the width direction, first
One end of a link 8 (only one of which is shown) is pivotally connected by a first support shaft 9. This first link 8
One end of a second link 10 is pivotally connected to the other end by a second support shaft 11. One end of this second link 10 is bent, and this bent part is connected to the third link.
The seat frame 5 is pivotally connected to the front end of the seat frame 5 by a support shaft 12 . One end of a third link 13 is pivotally connected to the other end of the second link 10 by a fourth support shaft 14 . Further, at the front end of the seat frame 5, one end of the fourth link 15 connects to the fifth support shaft 1.
It is pivoted by 6. This fourth link 1
One end of a fifth link 17 is pivotally connected to the other end of the fifth link 17 by a sixth support shaft 18, and a seventh support shaft 1 is connected to the middle part of the third link 13.
It is pivoted by 9. The fifth link 1 above
A footrest 22 is pivotally connected to the other end of 7 and the other end of the third link 13 by eighth and ninth support shafts 20 and 21. When the seat frame 5 is in the state shown by the solid line in FIG. 1, the link mechanism configured in this way is in a state where it is contracted downward on the front end side of the seat frame 5, and from this state, the seat frame 5 is in the state shown by the chain line. When the support shaft 7 at the rear end is rotated in the direction of the arrow as a fulcrum as shown in FIG. ing.

A lower end portion of a back frame 25 forming the back portion 2 is pivotally attached to the rear end portion of the seat frame 5 by a support shaft 26. A first bracket 27 is provided at the lower end of the back frame 25, and a cylinder 29 of a gas spring 28 is pivotally attached to the first bracket 27. A second bracket 30 is provided on the lower surface of the front end side of the seat frame 5, and the second bracket 30 has a connecting plate 32 fixed to the piston rod 31 of the gas spring 28, as shown in FIG. is pivotally connected by a support shaft 33. An end portion of a push rod 34 projects from the tip of the piston rod 31, and an operating lever 35, one end of which is pivotally connected to the support shaft 33, is opposed to this projecting end. This operating lever 3
5 is biased by a spring 36a in the direction indicated by the arrow toward the push rod 34. One end of a wire 37 inserted through a flexible tube 36 is coupled to the other end of the operating lever 35, and the flexible tube 3
One end of the piston rod 6 is fixedly attached to a mounting plate 38 attached to the piston rod 34. This flexible tube 3
The other end of the armrest 6 is introduced into one of the armrests 4, and the other end is fixed to a mounting plate 39 attached to the inside of the armrest 4. The other end of the wire 37 is fixed to one end of an L-shaped interlocking lever 41 whose midway portion is pivotally supported by a support shaft 40 on the mounting plate 39 . An engagement groove 42 is formed at the other end of the interlocking lever 41 . A bushing 4 is provided on the side wall of the armrest body 4 facing the other end of the interlocking lever 41.
3 is provided through the bushing 43, and a shaft-shaped operation button 44 is slidably inserted into this bushing 43. A split groove 45 is formed at the end of the operation button 44 that projects into the armrest body 4. Further, a locking shaft 46 that crosses the split groove 45 is provided at the end of the operation button 44, and the engagement groove 42 of the interlocking lever 41 engages with this locking shaft 46. Furthermore, the interlocking lever 41 is biased in the direction of the arrow by a spring 47 provided between this one end and the mounting plate 39. Therefore, when the operation button 44 is pushed in and the interlocking lever 41 is rotated in the direction of the arrow, the flexible tube 3
The wire 37 inserted through the gas spring 28 is pulled and the operating lever 3 rotates in the direction of the arrow, pressing the push rod 34 of the gas spring 28, so that the piston rod 31 of the gas spring 28 is operated in the direction of protruding from the cylinder 29. . That is, cylinder 2
9 and the piston rod 31 become larger. As a result, the back portion 2 to which the cylinder 29 is connected rotates in the rising direction. In addition, when rotating the back 2 in the direction of reclining the back 2, if the user leans on the back 2 while pressing the operation button 44, the piston rod 31 of the gas spring 28 moves into the cylinder 29.
Go inside. In other words, the back portion 2 is held at an arbitrary inclination angle with respect to the seat portion 1 by the gas spring 28. In addition, the spring 36
a and 47 are for reducing the operating force when pressing the operating button 44.

On the other hand, at the upper and lower ends of the back frame 25 of the back section 2, a lower substrate 52 and an upper substrate 53 are respectively provided along the width direction, as shown in FIG. A screw shaft 54 is provided on these substrates 52 and 53 so as to be rotatably supported at the upper and lower ends thereof. This screw shaft 5
Guide rods 57 are provided on both sides of the screw shaft 54, the upper end of which is pivotally connected to a bracket 55 provided on the upper substrate 53 by a support shaft 56, substantially parallel to the screw shaft 54. The upper end of the guide rod 57 forms a bent portion 58 bent toward the front side of the back portion 2. Further, the lower substrate 52 is provided with a drive source (not shown), and the screw shaft 5 is driven by this drive source.
4 is configured to be rotationally driven via a power transmission mechanism (not shown) such as a gear, a pulley, and a belt.

A nut body 60 shown in FIGS. 4 and 5 is screwed onto the screw shaft 54. As shown in FIGS. A support shaft 61 is provided protruding from the nut body 60, and one end of a connecting body 62, which is a plate material bent into a substantially U-shaped cross section, is pivotally attached to the support shaft 61. The other end of this connecting body 62 is pivotally attached to a frame 63. That is, the frame 63 is formed by bending a plate material into a substantially U-shaped cross section with a width slightly smaller than the distance between the pair of guide rods 57. A bracket 64 is fixed to the inner surface of one longitudinal end of the intermediate side of the frame 63, and the other end of the connecting body 62 is pivotally connected to the bracket 64 by a support shaft 65. A pair of guide rollers 66 are rotatably provided on both outer surfaces of the frame 63, and these guide rollers 66 are engaged with the guide rod 57. Also, frame 6
3 is provided with a resilient presser member 67 fixed to the frame 63 at its midpoint and pressed against the guide rod 57 at both ends. It prevents Further, on the frame 63, a flat plate-like mounting body 68 connects a connecting piece 69 bent at both ends in the width direction to a support shaft 70.
It is pivotally connected by. A pair of first supports 71 and a pair of second supports 72 (only one of which is shown) each having a substantially U-shaped cross section are provided on the upper surface of the mounting body 68. Each pair of first and second supports 71 and 72 are spaced apart in the width direction of the mounting body 68, and a support shaft 73 is provided thereon so as to be rotatable along the width direction of the mounting body 68. . A pine surge roller 74 made of a relatively hard elastic material such as rubber or synthetic resin is fitted onto each support shaft 73. A plurality of hemispherical protrusions 75 are provided on the outer peripheral surface of each pine surge roller 74 at predetermined intervals in the circumferential direction, and a through hole 76 penetrating in the width direction is provided inwardly in the radial direction corresponding to each protrusion 75. is drilled. Therefore, the protrusion 75 easily deforms elastically inward in the radial direction while crushing the through hole 76.

Attachment members 78 each having an engagement groove 77 formed therein are attached to the outer surfaces of the pair of first supports 71, as shown in FIGS. 6 and 7. In these mounting members 78, a holding member 79, which is an elastic member formed by molding a resilient material such as rubber into a ring shape, engages a portion of the holding member 79 with the pair of engagement grooves 77 and is elastically tensioned. It is set up. This holding member 7
A vibrating body 80 is attached to 9. In other words,
The vibrating body 80 includes a rectangular base plate 81 as shown in FIGS. 5 and 6. This base plate 81
One end of a clip 82 is fixed to each of the four corners. The other end of this clip 82 is bent into an annular shape,
The holding member 79 is fitted into this portion.
A cylindrical case 83 is provided on the upper surface of the base plate 81.
is installed and fixed. A motor 84 is fitted and fixed into the case 83 via a packing 85. A weight 87 is eccentrically attached to the rotating shaft 86 of the motor 84. Therefore, when the motor 84 is energized through the lead wire 88 and the weight 87 rotates eccentrically, the base plate 81 vibrates while elastically deforming the holding member 79. Furthermore, the base plate 8
A pressing body 89 curved into a dome shape is attached to the housing 1 so as to cover the case 83. This pressing body 89 projects upward from the pine surge roller 74 in FIG. 6, and is cut out at the center, leaving pressing portions 90 at both ends in the width direction.

On the other hand, the pair of guide rods 57 can be rotated at any angle using the upper end as a fulcrum by a drive mechanism 91 shown in FIG. That is, at the lower ends of the pair of guide rods 57, a pedestal 92 having a substantially U-shape in plan is installed with both ends fixed. One end of a link 93 is pivotally attached to each side of the pedestal 92. The other ends of these links 93 are pivotally connected to both sides of a rectangular drive body 94. This driver 94 has a male screw 95.
are screwed together. This male screw 95 is rotatably supported by a support frame 96 having a U-shaped cross section. This support frame 96 is the back frame 2
It is attached and fixed to a band-shaped plate 97 installed on the bridge 5. One end of a flexible shaft 98 is connected to the upper end of the male screw 95. The other end of this flexible shaft 98 is the ninth
As shown in the figure, it is connected to an operation knob 99 rotatably provided on the back 2. Therefore, when the operation knob 99 is rotated, this rotation is transmitted to the male screw 95 via the flexible shaft 98, thereby driving the driver 94 in the axial direction of the male screw 95. Ru. When this driving body 94 is driven in the direction of the arrow in FIG. 8, the pair of links 93 rotate from an inclined state to a horizontal direction. Therefore, the pair of guide rods 57 are designed to rotate in the direction of the arrow with the lower ends protruding forward of the back 2 with the upper ends as fulcrums.

Additionally, first holes are provided at upper and lower ends of the back frame 25
As shown in the figure, a first limit switch 101 and a second limit switch are activated by the movement of the frame 63.
limit switches 102 are provided respectively. Each limit switch 101, 102 is electrically connected to a drive source (not shown) that rotationally drives the screw shaft 54, and changes the direction of rotation of the screw shaft 54. Therefore, the frame 25 is adapted to be driven back and forth between the first limit switch 101 and the second limit switch 102. Further, although not shown, cushioning materials are attached to the entire upper surface of the seat frame 5 and both sides of the back frame 25 in the width direction, and these cushioning materials are covered with an exterior material.

According to the pine surge device configured in this way, when the drive source (not shown) is activated to rotationally drive the screw shaft 54, the nut body 60 moves along the screw shaft 54. The frame 63 is interlocked via the connecting body 62. Therefore, a pine surge roller 74 provided on this frame 63 via a mounting body 68 performs pine surgery from the waist to the shoulder of the user who is leaning on the back 2. Further, when the frame 63 reaches the bent portion 58 of the guide rod 57, the frame 63 is displaced and protrudes toward the front side of the back portion 2. Therefore, the user's shoulder at the position corresponding to the bent portion 58 is strongly massaged. Furthermore, when the guide rod 57 is rotated by the drive mechanism 91 in a direction in which the lower end protrudes toward the front side of the back part 2 using the upper end as a fulcrum as shown by the chain line in FIG. When the user travels to the lower end, the user's waist corresponding to this lower end is strongly pressed by the pine surge roller 74. In other words, the user can receive a stronger pine surge in the lower back region than in other parts.

Furthermore, when the motor 84 of the vibrating body 80 is energized at the same time as the frame 63 is run, this vibrating body 8
0 vibrates. Therefore, the user can use the vibrating body 80
Since the back muscles are massaged while being hit by the vibrations from the pressing body 89, the pine surge effect is improved in conjunction with the pressing action by the pine surge roller 74. Moreover, since the vibrating body 80 is attached to the elastic holding member 79, it vibrates to a large extent while elastically deforming the holding member 79, which also increases the pine surge effect of the vibrating body 80. Furthermore, the pressing body 8
9 has a notch in the center leaving pressing portions 90 at both ends in the width direction. Therefore, if the spine corresponds to this notched portion, the spine will not be rubbed by the pressing member 89, and the muscles on both sides of the spine will receive a pine surge due to vibration from the pressing member 90. , the user suffers pain from having his spine rubbed, and the pine surge roller 74 and vibrating body 80
The mounting body 68 to which the mounting body 68 is attached is connected to the frame 63 so as to be swingable along the traveling direction of the frame 63. Therefore, the mounting body 68 swings in accordance with the uneven shape of the user's back surface as the pine surge roller 74 and the vibrating body 80 travel while contacting the user's back surface, thereby achieving the above-mentioned effect. The pine surge roller 74 and the vibrating body 80 abut against the user's back surface reliably and with an appropriate strength that does not push the user's back surface too strongly, so that a comfortable pine surge effect can be obtained.

On the other hand, when a user sitting on a chair leans strongly on the back 2 and rotates the seat 1 in a direction in which its front end side rises, the front end of the seat 1 moves downward as shown in FIG. 11a. The link mechanism consisting of the first to fifth links, which had been contracted, is extended, and the footrest 22
protrudes upward from the front end side of the seat portion 1, as shown in FIG. 11b. Therefore, the user must use the footrest 22.
You can put your feet on the table and take a comfortable position. In addition, when the footrest 22 is protruded, it is shown in Fig. 11c.
As shown in the figure, the user can take a sleeping position by tilting the back 2 almost horizontally.Moreover, if the user receives a pine surge in this state, the user will be putting their weight on the back 2, so it will not be necessary to push hard. Can receive pressure pine surges. Furthermore, if the seat part 1 is rotated in the opposite direction with the back part 2 laid down almost horizontally and the link mechanism is contracted as shown in FIG. 11d, the seat part 1 and the back part 2 can be Since it is in almost a straight line, it is easy to pack it when shipping it from the factory.

Note that this invention is not limited to the above embodiment,
For example, a holding member made of rubber or the like is used to elastically displace the vibrating body on the frame, but instead of this, the vibrating body may be held on the frame with a spring. good.

That is, as shown in FIGS. 12 and 13, a spring 101 as an elastic member is attached to the mounting body 68. This spring 101 has coil portions 1 at the ends of both sides.
02 is formed, and the end of this coil portion 102 is fixed to the mounting body 68 with a screw 103. Coil parts 1 on both sides of the spring 101
The part continuous with 02 is an arc-shaped mounting piece 104 with a curvature corresponding to the case 83 into which the motor 84 is fitted.
The intermediate sides continuous to the ends of these mounting pieces 104 are connected to the case 83 as shown in FIG.
It is fixed with a screw 106 via a fixing piece 105. Note that the pressing body 89 is attached and fixed to the case 83 via a packing 107.

According to such a structure, when the vibrating body 80 operates, the spring 101 is elastically deformed by the vibration, so that the vibration of the vibrating body 80 is sufficiently amplified to beat and massage the user's body. It turns out. Therefore, the same effects as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, the present invention connects a mounting body to a frame movably provided on the back of a chair so as to be swingable along the running direction of the frame, and a pine surge roller is rotatably connected to the mounting body. A vibrating body that is supported and vibrates when energized is displaceably provided via an elastic member. Therefore, the user's body is pressed by the pine surge roller and at the same time his body is massaged by the vibrating body, so that the user can receive an effective pine surge due to the synergistic effect of these. In addition, since the mounting body to which the pine surge roller and the vibrating body are attached is swingable along the running direction of the frame,
This mounting body oscillates according to the uneven shape of the user's back, and the pine surge roller and the vibrating body hit the user's back reliably and with just the right amount of force without pushing the user's back too hard. Since they are in contact with each other, the pine surge effect by the pine surge roller and the vibrating body can be enhanced. Moreover, since the vibrating body is freely displaceable by the elastic member, it vibrates with a large amplitude, which also increases the pine surge effect of the vibrating body.

[Brief explanation of drawings]

Figures 1 to 11 show one embodiment of the present invention, with Figure 1 being a side view showing the overall schematic configuration, Figure 2 being a configuration diagram of the operating mechanism that operates the gas spring, and Figure 3 being Fig. 2 is a side view along the line, Fig. 4 is a side view of the frame, Fig. 5 is also a side sectional view, Fig. 6 is a half sectional view taken along the line of Fig. 5, and Fig. 7 is a side view of the frame. A perspective view of the support body, FIG. 8 is a perspective view of the guide rod drive mechanism, FIG. 9 is a sectional view of the part that operates the drive mechanism, FIG. 10 is an explanatory diagram when driving the guide rod, and FIG. 11a -d are explanatory diagrams of different ways of using the chair, FIG. 12 is a perspective view of a support structure for a vibrating body showing another embodiment of the present invention, and FIG. 13 is a sectional view of a mounting structure for the vibrating body. . 2... Back, 54... Screw shaft, 63... Frame, 71, 72... Support body, 74... Pine surge roller, 80... Vibrating body.

Claims (1)

[Claims] 1. The back of the chair, a screw shaft provided on the back along the vertical direction that is rotatably driven, a frame driven by the screw shaft, and a frame that swings along the running direction of the frame. A mounting body freely connected, a pine surge roller rotatably supported by the mounting body, and a vibrating body provided on the mounting body so as to be elastically displaceable by an elastic member and vibrating when energized. A chair-type pine surge device characterized by comprising: