JP2772017B2 - Massage chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a massage chair provided with a massage mechanism on a backrest.

[Prior art]

Conventionally, a massage chair shown in FIGS. 13 to 15 has been provided. In this, a pair of rails 17, 17 with a rack 18 attached thereto are arranged in the back 12 of the chair, and rollers 94 rolling between the rails 17 between the rails 17, 17 and a pinion 93 meshing with the rack 18 are provided. And a massage mechanism 5 provided at both ends, and a pinion
The massage mechanism 5 that moves up and down along the rails 17 by the rotation of 93 includes a spindle 20 that is driven to rotate,
As shown in FIG. 15, the two treatment elements 2 and 2 are provided with a pair of ring-shaped treatment elements 2 and 2 attached to the spindle 20. The protruding amount H of the backrest 12 toward the front side is changed with the rotation of the main shaft 2.

[Problems to be solved by the invention]

In a chair in which such a massage mechanism 5 is arranged on the backrest 12, when the chair is simply used as a chair, the treatment elements 2, 2 hit the back, and the sitting comfort is poor. Therefore, conventionally, when the massage is completed, the treatment elements 2, 2 are in the state shown in FIG. 15 (b),
In other words, the amount of protrusion H of the backrest 12 toward the front side is minimized, but when the amount of protrusion toward the front side of the backrest 12 is increased so that a good massage can be obtained, this is all. However, the treatment child 2 may still hit the back, and the members other than the treatment child 2 in the massage mechanism 5 may hit the back, so that the massage chair 5 cannot be used as a comfortable chair. As shown in FIG. 16 and subsequent figures, air bags 9 composed of a large number of air chambers are arranged on the front face, the seating surface, etc. of the backrest 12, and each air chamber of these air bags 9 is air-conditioned by a compressor unit 90. There has also been proposed a configuration in which the position of the substantial front surface and the position of the seat surface of the backrest 12 can be changed by individually expanding the knobs 91, but this reduces the expansion and contraction of each air chamber. By controlling, the angles α and β of the front of the backrest 12 and the height of the seat and the angles α ′ and
By changing β ', it is effective in that even people with different physiques can obtain an appropriate massage and adjusting the strength of the massage, but the massage mechanism does not hit the body at all Is impossible. The present invention has been made in view of such a point, and an object of the present invention is to provide a massage chair that can be used as a comfortable chair when treatment by a massage mechanism is not performed.

[Means for Solving the Problems]

Thus, the present invention provides a massage chair provided with a massage mechanism capable of running up and down along a rail provided on a backrest, wherein the upper end of the rail is pivotally attached to the backrest, and the rail and the massage mechanism are rested about the pivot point. And a fixing means for fixing the lower part of the rail to the backrest is provided. [Function] According to the present invention, when the massage mechanism is not used, the massage mechanism can be separated from the back of the back together with the rail, and it can be completely eliminated that the massage mechanism hits the back when leaning on the back. it can. EXAMPLES The present invention will be described below in detail based on the illustrated examples. The chair 1 in this massage chair includes a reclining backrest 12. A seat 11 and a pair of armrests 13 and 13 are attached to a lower frame 10 framed by a pipe, and a frame 12 a of the backrest 12 is provided. Is pivotally attached to the lower frame 10, a gas spring 15 is attached between the lower end of the backrest 12 and the lower frame 10, and the backrest 12 is expanded and contracted by operating the lever 16 arranged on the side surface.
That allows you to recline the backrest
Numeral 12 is formed by arranging cushion members 12b on the left and right sides of the front surface of the frame 12a and arranging a cover 12c made of elastic cloth between the two cushion members 12b. A pair of rails 17, 17 is attached to the back side of the frame 12a of the backrest 12. As in the above-described conventional example, the two rails 17, 17 provided with a rack 18 for allowing the massage mechanism 5 to run up and down by themselves are rectangular with bars 19, 19 being bridged between their upper ends and lower ends, respectively. Frame 12 and the frame 12
The upper ends of both rails 17, 17 are pivotally connected to the upper end of a by hinge pins 31, so that the rail 17 can swing in the front-back direction of the backrest 12. A central portion of a lever 33 is pivotally supported by a pin 32 at a lower portion of one side surface of the frame 12a. This lever 33
The slide pin 34 attached to the rear end side is slidably engaged with a vertically long slot 38 formed at the lower part of the rail 17 and is formed in an arc shape formed on a bracket 36 fixed to the frame 12a. The handle 35 is attached to the front end inserted into the long hole 37, and if the handle 35 is grasped and the front end side of the lever 33 is turned, the slide pin 34
Swings the rail 17 back and forth within the range of the angle θ while sliding in the long hole 38. Note that this swing angle θ is
It can be changed by changing the length from to the slide pin 34. As shown in FIG. 3, the long hole 37 formed in the metal fitting 36 has a diameter larger than the diameter of the handle 35 only at both ends thereof, and as shown in FIG. Pull the handle 35 attached by the tension spring 39 into the slot 37
To be fitted at both ends. Accordingly, as shown in FIG. 4 (b), the lever 33 is rotated while the handle 35 is pulled out to swing the rail 17 back and forth, and the handle 35 is pulled at the end of the long hole 37. When fitted inside, the rail 17 is locked at that position. As shown in FIG. 2, a state in which the rail 17 is along the back of the frame 12a, that is, a state in which the massager 2 in the massage mechanism 5 can give a massage to the back of the human body leaning on the back 12, and 17 is frame 12a
The rail 17 can be fixed in a state where the treatment element 2 does not hit the back of the human body away from the body. 6 to 9 show another embodiment. The support structure of the rail 17 is the same as that of the above-described embodiment, but a gas spring 40 is used here for fixing the rail 17. That is, the lever 45 is supported by the support frame 43 fixed to the lower side surface of the frame 12a, the operation plate 50 is coaxially supported, and the hook 46 projecting from the lever 45 is engaged with the projection 51 provided on the operation plate 50. By doing so, the operation plate 50 rotates together with the lever 45. In the figure 47
Is a support pipe, and 48 is a retaining pin. Then, a frame 42 provided at the tip of a rod 41 of a gas spring 40 whose one end is pivotally attached to the lower part of the rail 17 is attached to the support frame 43 with a hinge pin 44, and a valve rod protruding from the tip end surface of the rod 41. 52 faces the operation plate 50. If the valve rod 52 is pushed in by the operation plate 50 rotated by operating the lever 45, the gas spring
50 can be extended and contracted, and the angle θ of the rail 17 with respect to the frame 12a can be changed. And the lever
If the valve rod 52 is returned by returning the valve 45, the length of the gas spring 50 is fixed in that state,
The rail 17 is also fixed at that position. Rail 17 at any position
Therefore, the massage mechanism 5 can be used not only for retracting but also for adjusting the strength of the massage. Here, the gas spring 50 has a biasing force in a direction in which its length is shortened, that is, in a direction in which the rail 17 approaches the frame 12a. As valve rod 52
The rail 17 is manually retracted while the rail is pushed in.On the contrary, in order to bring the rail 17 close to the frame 12a and to be in a massage standby state, it is only necessary to push the valve rod 52 by operating the lever 45. It has become something. The connection between the lever 45 and the operation plate 50 is performed by the hook 46 and the projection 51 when the operation force applied to the lever 45 is too large, as shown in FIG.
This is because the projection 51 is bent so as to be disengaged from the hook 46. Note that the rotation range of the operation plate 50 is
It is regulated by the contact of the hinge frame 50 with the hinge pin 44 and the support frame 43. As shown in FIG. 11 and FIG. 12, a stopper 53 is formed integrally with the hook 46, and the stopper May be prevented from rotating.

【The invention's effect】

As described above, according to the present invention, the upper end of the rail is pivotally attached to the backrest to allow the rail and the massage mechanism to swing back and forth around the pivot point, and the lower part of the rail is fixed to the backrest. Because the fixing means is provided, when not using the massage mechanism,
The massage mechanism along with the rails can be kept behind the backrest, completely eliminating the possibility of the massage mechanism hitting the back when leaning on the backrest, so it is comfortable when used as a normal chair The seating comfort can be obtained, and the rail can be fixed when performing the massage, so that a reliable massage can be obtained.

[Brief description of the drawings]

1 is an exploded perspective view of one embodiment of the present invention, FIG. 2 is a schematic side view of the same, FIG. 3 is a side view of the same metal fitting, and FIGS. 4 (a) and 4 (b) are metal fittings, a lever and a handle. 5, FIG. 5 is a sectional view of a lever and a rail, FIG. 6 is an exploded perspective view of another embodiment, FIG. 7 is a schematic side view of the same, FIG. FIG. 10 and FIG. 10 are cross-sectional views of the same, FIG. 11 is an exploded perspective view of another example, FIG. 12 is a cross-sectional view of the same, FIG. 13 is a side view of a conventional example, and FIG. FIGS. 15 (a) and 15 (b) are side views of the treatment element of the above, FIG. 16 is a perspective view of another conventional example, and FIGS. 17 (a) and (b) are perspective views of the air bag of the above. Fig. 18 is a sectional view of the same as the above, Figs. 19 to 21 are a sectional view, a horizontal sectional view, and a sectional view showing the same operation, 5 is a massage mechanism, 12 is a backrest, and 17 is a rail. Is shown.

Claims (1)

(57) [Claims] 1. A massage chair provided with a massage mechanism capable of running up and down along a rail provided on a backrest, wherein an upper end of the rail is pivotally attached to the backrest, and the rail and the massage mechanism are rested about a pivot point. A massage chair characterized in that it is swingable in the front-rear direction and is provided with fixing means for fixing a lower portion of the rail to a backrest.