JPS61146259A - Massager - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a pine surgery machine in which a treatment element is movable along a rail.

[Background Art] There is a massage rock in which a treatment element is movable along rails, such as that disclosed in Japanese Utility Model Application Publication No. 176231/1983, which has rails arranged on both sides of the treatment element. Because it guided the movement of the treatment child and supported the treatment child, in places where the treatment child was not positioned, the body would sink because there was nothing to support the body, and the body would sink.
ν) It was not comfortable.

[Objective of the Invention] The present invention has been made in view of the above points, and its purpose is to provide a pine surge machine that prevents the body from sinking and provides comfortable pine surge. It is on offer.

[Disclosure 1 of the Invention The present invention provides a pine surgery machine that is provided with a rail and that allows the treatment elements to be moved freely along the rail, and a rail that has a curved surface that conforms to the shape of the back of the human body between at least a pair of treatment elements. The device is characterized by the fact that it is equipped with a drive means for moving the treatment element behind the rail, and the body is supported by the rail in areas where the treatment element is not located. The rail, which guides the movement of the treatment element, also functions as a support member for the body.

The present invention will be described in detail below based on the illustrated embodiment-2.The chair frame 1 herein is formed by molding synthetic resin, and has a backrest portion and a seat portion integrally constituted. , there are three recesses on the front side of the body, and on both sides of the front side there are bodies 2 and 2 for the backrest, on the upper surface of the seat there is a body 3, and on the upper end there is a headrest. body 4 is attached. The bodies 2, 3.4 of each of these supports are composed of a plate-shaped core material 10 which is a synthetic resin molded product and is fixed to the frame 1, and a cushion 11 made of foamed urethane resin or the like arranged on the surface of the core material 10. In the case of the backrest 2, a surface material 12 such as cloth or leather is further applied to the surface of the cushion 11.
Furthermore, the bodies 2, 3.4 of each of these supports and the space between the bodies 2.2 of both back supports are covered by a cover 5. Here, both sides of the frame 1 and the bodies 2 of the back supports attached thereto are shaped into a substantially S-shape so as to follow the shape of the back of the large tree, and the user can The lower back is supported, allowing you to maintain a natural and comfortable posture.

In this chair, in which the outer shell is formed as described above, the bottom surface of the frame 1 itself serves as the ground surface.

In other words, the bottom of frame 1, which is the back of the seat, is divided into three parts from its front end to the back of the joint between the backrest and the seat, and the front end is the front end of the seat. An inclined surface 31 that rises diagonally upward toward the ground, and a horizontal ground surface 32 in the middle
The rear end portion is an arc-shaped ground plane 33 that rises in an arc backwards, and a stopper 14 that is slidable back and forth is attached to the arc-shaped ground plane 33. Move the stopper 14 forward, that is, towards the horizontal ground plane 3
If you move it to the second side, it will disappear by shaking the chair,
If the stopper 14 is moved to the rear end of the arcuate ground plane 33,
The chair can be rocked, that is, used as a rocking chair, and in this case, the stopper 14 regulates the maximum angle at which the chair can be rocked backwards. Prevents falling backwards.

Now, inside the chair, a treatment element 6 for pine surgery and a motor 7 for driving the treatment element 6 are housed. The motor 7 is connected to a lower plate 2 installed at the lower part of the frame 1.
0 and the upper plate 2 installed at the top inside the frame 1
1 and is suspended and attached to the lower plate 21 of 1 and 21 with vibration isolating rubber 70, and is located approximately in the center of the seat part, and the treatment element 6 is located between the above-mentioned two plates 21 and 22. Drive shaft 8 as a feed screw installed via a bearing
It is installed on a movable block that is removable and located inside the backrest. ”2 Plate 2
1. In addition to the drive shaft 8, a rail 9 located in front of the drive shaft 8 and a reinforcing frame 80 having a shape with a large section modulus surrounding both sides and the rear of the drive shaft 8 are installed between the drive shaft 8 and the drive shaft 8. There is. While the drive shaft 8 and the reinforcing frame 80 are both straight, the rail 9 is bent forward at one part and backward at the lower part. Due to the relationship with the shape of the body 2, the body 2 approaches the cover 5 at the waist and shoulders, and moves away from the cover 5 at the back between these areas. The main octopus rail 9 has a U-shaped cross section that opens only at the rear, and a rack 10 is fixed to its inner surface, making it compact and strong.

The lower end of the movable block equipped with the treatment element 6 is connected to the motor 7.
The rotation of the drive shaft 8 connected by a belt 71 causes the rack 1 to move up and down along the rail 9.
0, the treatment element 6 is rotationally driven by engagement with the feed nut body 60, which is threadedly engaged with the drive shaft 8, which is a feed screw, and a pair of arms 61. 61, consists of a shaft 62 held at the other end of both arms 61, 61, etc., and the treatment element 6 is a pair of roller plates 1-65 welded and fixed to the shaft 62 on both sides of the rail 9; 65, and a roller 66 which is rotatably attached to each tip of the radial projection of both roller plates 65 via a shaft 67 and a roller bearing 68.

To explain the movable block in more detail, the feed nut body 60 further surrounds the outer surface of a reinforcing frame 80 that has a U-shaped cross section and surrounds the drive shaft 8 to which it is screwed. The reinforcing frame 80 includes a sliding portion and a gaff fluid roller 83 that moves around the rear surface of the reinforcing frame 80. This prevents the feed nut body 60 from being distorted due to the force component of the force from the treatment element 6 in the direction perpendicular to the drive shaft 8 when driving the treatment element 6, causing the drive shaft 8 to become bent. This is intended to reduce drive loss and prevent movement of the treatment element 6. However, if a larger diameter drive shaft 8 is used as the feed screw so that the drive shaft 8 itself can resist the deflection, the reinforcing frame 80 is separately required. isn't it. An example of this is shown in FIG. In the example shown in FIG. 11, the feed nut body 60 is provided with a ball bearing 60a whose inner race surface fits into the drive shaft 8 in order to receive the above component force. Since it is a rolling pair, it can be driven with low loss.

The shaft 62 is provided with a spline 63 at its center, and a pinion 64 is installed so that it can freely slide in the axial direction and rotate together with the old shaft 62. One guide disk 73+73 on each side is freely rotatable, and guide plates 74, 74 are attached to each side via bearings 7S, and guide rollers 76.
76 is attached. The pinion 64 meshes with the rack 10 in the space surrounded by the rail 9, and both guide plates 74 and 74 engage with the rack 10 in the space surrounded by the rail 9.
A guide roller 78 that rolls on the front surface of the treatment element 6 to support the load applied to the treatment element 6 is supported by a shaft 77 passed between its tips. Also, this guide plate 74
．． 74, the other end of a torsion coil spring 79, which is attached to the outer periphery of the shaft 62 and has one end locked to the arm 61, is locked, as shown in FIG. The torsion coil spring 79 is connected to the shaft 62 with respect to the feed nut body 60.
is biased in the direction of pressing the rail 9 toward the rail 9 side.

The two guide discs 73 and 73 are located along the opposing inner surfaces of both sides of the rail 9, and by bringing their outer peripheral edges into contact with the rail 9, the guide disks 73 and 73
This prevents the pinion 64 from coming into contact with the bottom surface of the rail 9 due to the force exerted by the torsion fill spring 79 when the rack 10 and the pinion 64 are disengaged, which will be described later. . The narrow rollers 76 and 76 at both ends of the shaft 62 are located at a distance in front of the rail surface 19 provided on the frame 1 in a shape that follows the rail 9, and do not normally contact this rail surface 19. However, when an abnormal load such as a one-sided load or an impact load is applied to the treatment element 6 and the treatment element 6 tries to move backward, it comes into contact with the rail surface 19, causing damage to the guide roller 78, pinion 64, and guide disk. This prevents the rail 9 sandwiched between the rails 73 and 73 from being deformed. The reason why the rails 9 and frame 1 are not in contact all the time, but only in abnormal situations, is to absorb errors in manufacturing and assembling the rail 9 and frame 1, and also to avoid constant rolling contact. This is to improve lifespan.

Next is the treatment element 6, which, as mentioned above, consists of a pair of roller plates 65, 65 and both roller plates 65.
The roller 66 is freely rotatably attached to each tip of the radial protrusion through a shaft 67 and a roller bearing 68, and the roller 66 is mounted on the outer periphery of one roller plate 65. 4 to 6 pieces are provided at intervals, and in the illustrated example, 5 pieces are provided. In addition, it is preferable that the roller 66 be a blow-molded product of synthetic resin, as shown in the illustrated example, or a soft material made of rubber or the like, in terms of contact with the body. The roller plates 65, 6S here are arranged such that each roller 66 is positioned on the outer periphery of the portion fixed to the shaft 62, that is, in the direction of the load that the roller 66 receives. The middle part is bent so that the fixed portion of the plate 65 is located, and prevents the roller plate 65 from collapsing due to a load. By forming the roller plate 65 with a single plate, it can be produced at a low cost and is advantageous in terms of space, contributing to miniaturization.

In this pine surge machine configured as above,
When the drive shaft 8 is rotated by the motor 7, the movable block that screws the feed nut body 60 onto the drive shaft 8, which is a feed dog, moves downward as the drive shaft 8 rotates. . At this time, the treatment element 6 also performs a downward movement, and the rack 1 is moved by the torsion coil bone 79.
The pinion 64, which is biased to mesh with the pinion 0 and guided by the guide roller 78 and the guide disc 73 to maintain the pitch distance, slides in the axial direction with respect to the shaft 62, as shown in FIG. Rack as shown]0
There are two states: a state in which the pinion 64 is engaged with the rack 10 and a state in which it is not engaged as shown in FIG.
The treatment element 6 is rotated through the shaft 62 around the axis of the shaft 62. In the latter case, since the treatment element 6 is separated from the rack 10, it becomes free, and as a result, the treatment element 6 moves up and down with the two rollers 66 in a stable state in contact with the inner surface of the cover 5. Only move.

When the treatment element 0 is rotated and moved up and down, each roller 66 located on the outer periphery of the roller plate 65 presses the back of the human body through the cover 5 one after another. At this time, two adjacent rollers 66 are in contact with the back of the human body,
States in which only one roller 66 is in contact with the back of the human body appear alternately, and in the two states, the distance of the roller 66 from the rail 9 at the time of contact with the human body is different, so the difference in the two distances Acupressure pressure is applied to the human body, and this pine surge is applied along the back muscles of the human body. When the treatment element 6 is moved downward two times without rotating, the adjacent two
Two rollers 66 rub and massage the back of the human body.

When performing this pine surge operation, the rail 9 located at the center of the backrest not only guides the vertical movement of the treatment element 6 along the shape of the back of the human body as described above, but also The back of the human body where 6 is not located is supported through the cover 5 to prevent the human body from sinking. In addition, since the pain remains if the cover 5 is only interposed between the covers, a cushion body 5 is attached to the back of the widthwise central part of the cover 5.
8 is provided.

Now, the engagement between the rack 10 and the pinion 64 is controlled by guide springs (not shown) disposed at the upper and lower ends of the rail 9, respectively. The guide spring arranged at the upper end of the rail 9 presses the pinion 64, which is not in mesh with the rack 10, in the direction of meshing with the rack 1o as the pinion 64 moves upward.
The pinion 64 is moved to the meshing position when the teeth match, and the guide spring arranged at the lower end of the rail 9 conversely moves the pinion 64 to a position where it does not mesh with the rack 1o as it moves downward. It is something. In addition, backlash between the rack 10 and the pinion 64 will cause the movement of the treatment element 6 to wobble and cause damage to the body if the load fluctuation is large, such as when the treatment element 6 is being rotated and moved up and down. As mentioned above, the pinion 6
4 is biased toward the rack 10 side by a torsion coil spring 79 to reduce backlash. In addition, the rack 10 here has a pair of racks 10 as shown in FIGS. 7 and 8. are provided in parallel, and both racks 1.0.
An elastic member 18 such as rubber is installed between the racks 10 and the height of the elastic member 18 is higher than the tooth groove of the rack 1o, and when the pinion 64 meshes with both racks 10, the elastic member 18 is pushed and compressed. This suppresses sudden movement of the pinion 64. The elastic body 18 may be provided on the pinion 64 side or on both sides.

By the way, in this Matusage chair, the engagement between the pinion 64 and the rack 10 is controlled by the control mechanism as described above, and the switching operation is performed when the guide bone reaches the part where it is installed. This is only when this switching command is given by a rotation switch, etc., and under normal conditions, the rotation direction of the motor 7 is controlled to be reversed by the time the pinion 64 reaches the part where the guide spring is installed, and the pinion 64 and the rack 10 are maintained in an engaged state or in a non-engaged state. As shown in FIGS. 1, 5, and 9, the position detection mechanism for detecting the lower position of the treatment element 6, which is necessary for performing such control, is connected to the lower plate 20 and the lower position. A belt 50 is stretched between pulleys 53 and 54 attached to the main plate 21 and connected to a feed nut body 60 via a tension spring 51, and a small hole 52 formed in this belt 50 is optically It is composed of a detection unit 55 for detecting. A small hole 52 provided in the belt 50 is used to adjust the position at which the vertical movement direction of the treatment element 6 should be reversed, that is, the position at which it should be reversed and the meshing state without changing the meshing state between the pinion 64 and the rack 10. They are provided corresponding to the position where the treatment element 6 should be immediately reversed after changing, the storage position of the treatment element 6 at the lowest end of the rail 9, the out-of-place position where the treatment element 6 is reversed in the middle of its vertical movement, and the like. Of course, the number of detection units 55 is also provided in accordance with the arrangement and number of small holes 52. Of course, in addition to such a position detection mechanism, as shown in FIG.
It can also be configured by a limit switch L S driven by 0, a proximity switch, etc.

In the above embodiment, the drive shaft 8 as a feed screw is used as a drive means for moving the treatment element 6 up and down, but it is also possible to use a means such as a wire, chain, belt, etc. to move the treatment element 6 up and down. Of course.

[Effects of the Invention] As described above, in the present invention, the rail that has a curved surface that conforms to the shape of the back of the human body and guides the movement of the treatment element,
In order to support the human body in areas where the treatment child is not located,
The device does not cause the body to sink down, allowing a comfortable massage while maintaining a good posture, and the driving means for moving the treatment element is placed behind the rail. Because of this, the rail serves as a cover for the drive means and protects the drive means, while at the same time
It is safe because there is no need to touch the drive means.

[Brief explanation of the drawing]

1M is a longitudinal sectional view of one embodiment of the present invention, @2 is a broken view taken along arrow A in FIG. 1, and FIGS. 3 and 4 are B-B in FIG. 2.
85 is a vertical sectional view of the movable block and the treatment element, FIG. 6 is a perspective view of the arm and guide plate, FIG. 7 is a broken perspective view of the rail, and FIG. 9 is a perspective view of the position detection mechanism, FIG. 10 is a cutaway perspective view of the embodiment of the pond, and FIG. 11 is a longitudinal sectional view of yet another embodiment. Treatment element, 8 is a drive shaft as a feeder, 9 is a rail, 10 is a rack,
18 is an elastic member, 19 is a rail surface as a second rail, 58 is a cushion body, 60 is a feed nut body, 60a is a ball bearing, 64 is a pinion, and 80 is a reinforcing frame. Agent Patent Attorney Ishi 1) Chief 7 Figure 9 Figure 10

Claims (9)

[Claims] (1) In a massage machine in which a rail is provided and the treatment elements are movable along the rail, a rail having a curved surface that conforms to the shape of the back of the human body is installed between at least a pair of treatment elements, and the rail is A massage machine characterized in that a driving means for moving a treatment element is provided on the back. (2) A patent claim characterized in that the drive means is composed of a drive shaft as a rotationally driven feed screw, and a feed nut body that is integrally connected to the treatment element and screwed onto the drive shaft. The massage machine according to item 1. (3) The rail has a U-shaped cross section that opens on the back side, and has a rack fixed inside and a pinion that rotates the treatment element by meshing with the rack. A massage machine according to claim 1. (4) The massage machine according to claim 1, wherein the front side of the rail and the treatment element are covered with a cover, and a cushion body is provided between the cover and the rail. (5) A second rail is provided on both outer sides of the pair of treatment elements to support the treatment elements and have a curved surface that follows the curved surface of the rail. Massage machine. (6) The massage machine according to claim 2, wherein a bearing is interposed between the drive shaft and the feed nut body. (7) A patent claim characterized in that the drive shaft is provided with a reinforcing frame having a U-shaped cross section and guiding the feed nut body, and a position detection mechanism for the treatment element is attached to this reinforcing frame. The massage machine according to item 2 of the scope. (8) The massage machine according to claim 3, wherein the rack is formed integrally with the rail. (9) The pinion is spring-biased in the direction of meshing with the rack, and an elastic member such as rubber is disposed on the teeth of at least one of the pinion and the rack. The massage machine according to item 3.